How to Get Rid of Black Mold in Your Shower Caulking

7 Materials
2 Hours
If you don't want to take the time and the expense to remove and replace your shower or bathtub caulking that is currently moldy, then this is a great way to remove the mold and mold stains that is very affordable and easy! Plus, it works amazing!
So, if you have a bathtub with caulk that looks like this, follow along!
You'll need cotton balls, gloves, water, and bleach. Eye protection and a ventilation mask also recommended.
Mix water and bleach together in a small dish, using only a little bleach. Open the window, turn on the fan, and wear gloves!

Dip a cotton ball into the bleach water and then apply the wet cotton ball directly to the caulking around your tub.
If you have moldy spots in the vertical caulking of your tub, stretch out the cotton balls a bit first before dipping them in the bleach water. Start with the highest part and then work your way down as the liquid dripping down will cause the ones below it to fall.
Let the cotton balls stay on the caulking for about 2 hours. Remove one and see if the mold is gone. If not, wait another hour.

If looks good, remove the cotton balls and dispose them in the trash.

You should now have beautiful caulking!
For more tips on using bleach and removing mold from caulking, head to my post (linked at the bottom) for all the details and to check out more of my cleaning tutorials.

And if you like smart tips like this, be sure to check out my ebook Speed Clean the Deep Clean which has more than 50 cleaning tutorials and cleaning tips for all areas of your home.

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Katelyn Fagan
Want more details about this and other DIY projects? Check out my blog post!

Frequently asked questions

Have a question about this project?

  113 questions
  • Arlene Blake Warner Arlene Blake Warner on Jul 23, 2017
    Would this work on grout on a tile floor

    • Ashley Gary Ashley Gary on Jul 23, 2017
      I would imagine it'd be perfect on grout, but I'd test first in an inconspicuous spot first to make sure the bleach doesn't have any effect on your grout color since caulk is typically white or clear to begin with and grout is not.

    • Dana Dana on Jul 23, 2017
      for mould yes. Not for dirt in between. For that go to the flooring specialist, they have some products for that. Check your local hardware shops.

    • Dana Miller Ford Dana Miller Ford on Jul 23, 2017
      Worked great on the walls but not on the floor at all.

    • Karen Street Karen Street on Jul 23, 2017
      Here is my experience, bleach goes black in applied areas where light is not constant, ie: rooms with no windows or blocked by heavy curtains with no light. It looks worse than mold and removal of caulk becomes necessary to correct the black stain. Sunlight and light activate bleach to brighten, like cloth diapers on a clothesline.

    • Pyesangel Pyesangel on Jul 23, 2017
      I've used bleach on the grout in my bath and it did NOT work. What now???

  • Amanda Amanda on Jul 23, 2017
    Can you not just us neat bleach with the cotton wool balls.

    • EPO17745097 EPO17745097 on Jul 23, 2017
      I just pour bleach on any spots of mold I see and it clears them up . I get it at the bottom of
      the walk in shower

  • Pauliegirl1 Pauliegirl1 on Jul 23, 2017
    Doesn't the mold come back? Eventually?? I would think you have to get to the 'core' of the mold??

    • Jennifer Jennifer on Jul 23, 2017
      I wondered that, too. I was told by a disaster cleaning company, and have seen on shows that do restorations, (Mike Holmes for one)
      that bleach and other things just remove the color. They said it has to be removed, or it will come back. I'm thinking you are right about this. (but I am not a pro)

    • Alliecat Alliecat on Jul 23, 2017
      I think the cause of the mold is superficial--it's due to the moisture in the bathroom. Maybe cracking the window after a steamy shower would help... or just cleaning it every so often as they've done here

    • Elaine Elaine on Jul 23, 2017
      Yes, mold will return as it loves moisture - the best bet is maintenance! By that, I mean never letting the mold develop to that extent; keeping on top of jobs in a house is a lot easier than letting them become more laborous. After every shower, I use a squeegee on the glass shower door (no streaks!!) and on the walls then I wipe everything down with the bath towel I just used on myself. This extra bit of effort has resulted in no mold, so far.

    • Gidget Gidget on Jul 23, 2017
      After the bleach, and all is dry, wipe the surface with white vinegar. Vinegar doesn't remove mold, but it retards its regrowth. The vinegar smell goes away quickly. (old boat trick).

    • Katelyn Fagan Katelyn Fagan on Jul 24, 2017
      It will likely come back eventually. The best thing is to try and keep your shower as dry as possible in the meantime. But, I'm hoping this will keep my caulking white for at least a year. :)

    • Kim Kim on Jan 21, 2018
      Vinegar kills 87% of mold it is sprayed on. So if you were to spray it every day and kill 87% more each day it will be gone.
      1st day 87%
      2nd day 87% of the13% left from the day before.
      In my basement some mold started and I used the vinegar and it is all gone. I still spray when I think of it to keep it gone.

  • Linda Testerman Linda Testerman on Jul 23, 2017
    I am allergic to ble ach, what else can I use?

    • Jennifer Jennifer on Jul 23, 2017
      In the comments below people suggested peroxide or Greased Lightning. I have both, and will experiment.

    • Wyldecent Wyldecent on Jul 23, 2017
      You could try hydrogen peroxide. Or new caulk.

    • Elaine Elaine on Jul 23, 2017
      Hydrogen peroxide should work too.

    • Patti Patti on Jul 23, 2017
      H2O2 (hydrogen peroxide). 3% comes in a brown plastic bottle at the drug store, Target, Walmart, etc. where you would find Epsom salts, rubbing alcohol, et al.

    • Ann stewart Ann stewart on Jul 23, 2017
      KaBoom is a great product for this and you don't have to use the cotton balls.

  • Lori Dumm Lori Dumm on Jul 23, 2017
    What a great idea ,does it also all work on painted walls ? Some of my walls in my kitchen has streaks from steaming it doesnt seem to get the scum off of them.

    • Elaine Elaine on Jul 23, 2017
      No, don't use this idea on painted walls as the bleach will affect the paint color!

    • Elizabeth Elizabeth on Jul 23, 2017
      This is tedious and doesn't take care of the whole problem. You still have moldy, discolored areas on the upper tiles. There are commercial sprays (yes you have to pay a little) that will remove that dangerous mold and mildew.

  • DeWayne Blank DeWayne Blank on Jul 23, 2017
    I have had my tub and walls "refinished". Would this process be safe for them?

  • GBay Girl GBay Girl on Jul 23, 2017
    Anyone know if this can be used (re bleach) if the mould is in a Bathfitters' tub? I don't know if bleach can be used in the acrylic. If it can safely be used, I'm going out to get some cottonballs and get this project started. Thanks.

    • Bonnie Doroski Gismondi Bonnie Doroski Gismondi on Jul 23, 2017
      You can use bleach safely on acrylic tub surrounds.

    • Wir27811796 Wir27811796 on Jul 23, 2017
      call Bathfitters and ASK THEM!

    • Dpbeee2 Dpbeee2 on Jul 23, 2017
      You an use bleach, just not abrasive cleasers like comet.

    • Dpbeee2 Dpbeee2 on Jul 23, 2017
      I accomplished this with 50/50 bleach and water in a spray bottle. I just do it quickly with a mask on and get out. I let the bleach odor dissipate before I go back and wipe it down. If you have asthma or respiratory problems, I would advise you not to do this.

    • GBay Girl GBay Girl on Jul 24, 2017
      I have asthma so I really appreciate this insight. Re calling BathFitters - I have several times without any response.

    • Dpbeee2 Dpbeee2 on Jul 24, 2017
      I use bleach to combat mold. However, most cleaners on the market ! even cheap dollar store ones clean grease and dirt from my acrylic tub.

    • Dpbeee2 Dpbeee2 on Jul 24, 2017
      Sorry, I meant to use a comma not an exclamation point. This keyboard is a pain at times.

  • Stephanie Dougherty Stephanie Dougherty on Jul 23, 2017
    Our bathroom has no Windows. How would you get rid of mold in corners and painted walls with our killing myself...

    • Wir27811796 Wir27811796 on Jul 23, 2017
      get a huge fan and suck the air out of the bathroom.................

    • Suz27841008 Suz27841008 on Jul 23, 2017
      Agree with fan, but face it into the bathroom, not out. When you do the cotton balls, do it quickly, and get out. If it is not done perfectly the first time, you can do it again, but you can wait until the bleach smell is aired out. I use a bleach, water, liquid dish soap in a spray bottle on my tub and tile grout. Sometimes a commercial type.

    • Stephanie Dougherty Stephanie Dougherty on Jul 23, 2017
      But mold is on the painted walls. So maybe bleach, soap, and water? How much of each? Thank you all

    • Jenne Gagnon Jenne Gagnon on Jul 24, 2017
      I live in Florida, I keep a cute spray bottle filled with half water and equal parts vinegar and baking soda. When I get out I spray. Make new batch once a week. In an emergency Windex works.

  • Patti Patti on Jul 23, 2017
    I wonder what the best type of caulk is?

    • Uph Uph on Jan 21, 2018
      Dow Corning I used this on my bathroom , 10yrs ago I don't have any mold/mildew

  • Pyesangel Pyesangel on Jul 23, 2017
    I didn't think of using Borax...I've used bleach on the grout in my bath and it did NOT work. At the time I just wanted to get rid of all the 'black' in the grout. Could you use your mixture in a spray bottle???

    • Angie Burk Angie Burk on Aug 13, 2017
      Bleach does not kill the mold spores, it only bleaches the color (black) away. There is a very good mold killer and stain remover called "x14" I get it at my local hardware store.

    • Sos12988015 Sos12988015 on Jan 21, 2018
      I used Clorox FOAM spray on bay widow awning to remove black mold just sprayed and stayed
      that was 2 yrs ago. No mold has returned
      prior to that I used a special mold removing liquid which did nothing

    • Alicia Pousada Alicia Pousada on Jan 21, 2018
      Bleach most certainly does kill mold. For more info,

    • Cyn28973186 Cyn28973186 on Jan 21, 2018
      Bleach kills anything but white vineagar get rid of mold also mixed with a lttle water

    • Mina Scousin Mina Scousin on Jan 21, 2018
      Yes, but it comes with a catch. Bleach labels will warn you that chlorine bleach will only be effective on a “hard, non-porous surface.’’ This basically means that chlorine bleach is not made to “soak in.” Therefore, its disinfecting properties are limited to a hard surface like tile or glass. So here’s the problem: To ensure survival, mold spores spread its roots (Mycelia) deep into a porous surface. Mold remediation requires a cleaner to reach deep down into wood and other porous building materials to remove or "pull out" the roots. The properties of bleach prevent it from soaking into these materials. The surface mold looks gone (it's bleached white) but the internal mold always remains to grow back.

  • Mcc21382458 Mcc21382458 on Jul 24, 2017
    how do you get rid of mold/mildew on a tiled ceiling?

    • Brenda Meyers Brenda Meyers on Jul 24, 2017
      Tilex mold and mildew will do the same as your clorox and cotton balls and is much easier. Just spray on and return later and see that mold has disappeared!!!

    • Mcc21382458 Mcc21382458 on Jul 24, 2017
      problem is spraying product on the ceiling turns into tilex in your eyes and on your face...gravity doesn't keep it on.

    • Susan Susan on Jul 24, 2017
      put the bleach or tilex on a flat bottom mop, like swiffer, and apply to ceiling. With a little scrubbing, I think this would work. Like mopping upside down. Just don't use so much that it drips on you.

    • Rebecca Rebecca on Jul 25, 2017
      I used tilex spray with great results. Just be sure to not over spray, protect your floor and any other objects close by. I used a step stool placed off to one side. I could still reach the stain but get off of and out of the way quickly, wore gloves and eye protection and clothes that I didn't care about. I sprayed left the room and came back an hour later to check the stain. The stain took about three sprayings but was pretty bad (from a roof leak)and had been there a long time. Ceiling looks great!

    • Pat Pat on Jul 25, 2017
      Dow scrubbing bubbles has a foaming bleach cleaner that is great for spot mildew

    • Kyp Purifoy Kyp Purifoy on Jul 26, 2017
      I used a swiffer mop with a dry cloth sprayed with bleach to wipe down the walls and ceiling. However, the Tilex spray wouldn't smell as strong as the bleach. I ended up with too much bleach in my lungs, since I didn't wear a mask.

    • Marcia Marcia on Jan 21, 2018
      For years I wiped down the shower walls and edge of the tub with a dry towel and I rarely got any mold. If I got any, mostly in a corner or under the tub spout, Tile did the trick or clorox clean-up. Both worked well.

    • Mary Ellen Mary Ellen on Jan 21, 2018
      Clorox bleach pen works great around tub, but costs more. squeeze a bead all around & leave it awhile. But this cotton ball idea is good! Thank!

  • Alp27782961 Alp27782961 on Jan 21, 2018
    Bleach and Clorox are available already mixed and ready to go .Just spray on.

    • Susan Kimmer Susan Kimmer on Jan 31, 2018
      Bleach and Clorox are the same thing. They make a product called Clorox cleanup. I just put bleach and water in a spray bottle. It is much cheaper.

  • Denise Denise on Jan 21, 2018
    Does this work for pink mildew, as well?

    • Deborah LaBate Deborah LaBate on Jan 21, 2018
      Will someone please answer this, about pink colored on plastic trim around glass siding doors. We have hard water,but do have a softener.

    • Millie Millie on Jan 21, 2018
      I have never heard of pink mildew. Could it be your mildew has turned color because of buildup on it? You could take an old toothbrush and scrub it to see if it calmed off, but the bleach should do the work for you. Don't forget to ventilate, very important.

    • Janine Wereley Putzer Janine Wereley Putzer on Jan 21, 2018
      It should. Pink even easier to remove. I get it on my shower curtain liner occasionally and I sprayed on diluted bleach and it's gone.
      Also, it should be listed above, but I believe a 10% solution works fine.

    • Michelle Michelle on Jan 21, 2018
      I had white wash cloths that would get pink mildew stains after 3 days of use. Washing would not remove the stains. I would put them in bleach water for a day. They got pristine white and the pink mildew stains did not return. I also use bleach to clean the mildew that starts in my shower. This works better than buying cleaning supplies in the store.

    • Darlene Darlene on Jan 21, 2018
      I was told pink mold is toxic. Much worse than black mold. A Science teacher told me this bit of info.

    • WENDY WENDY on Jan 21, 2018
      I was told pink mildew was from our well water

    • Barb Gimbel Barb Gimbel on Jan 21, 2018
      Just so no one panics over pink mold, which is very common. We have it here too on our shower liner. I toss it in the washer with bleach once a month with cleaning rags etc.

      Everyone is aware of black mold that is very dangerous and toxic, causing harmful effects on the health of humans. ... ➺ Pink mold is actually a bacteria and not a fungi. This bacteria, scientifically called Serratia marcescens, is most commonly found in bathrooms.

    • Lynda Miller Lynda Miller on Jan 21, 2018
      Be careful with the bleach! Not recommended for grout on expensive tiles and it will definitely shorten the time between resealing the tile.

    • RaNae RaNae on Jan 21, 2018
      Are you sure the pink is actually mildew? I continually had pink colored deposits but they disappeared when I changed to iron remover softener salt.

    • VickiC VickiC on Jan 21, 2018
      'Pink mold is actually not a fungus, pink colored mold is caused by a bacterium called “Serratia Marcescens.” This bacterium contains a type of mold, and it thrives in moist, wet environments.
      It is suspected that pink bathroom mold is not as dangerous as black mold.
      Also, this mold growth can be prevented by avoiding soap buildup on the shower walls and floors. It is suspected that pink mold actually feeds on soap residue, so allowing the residue to sit on walls and floor of the shower may promote additional growth.'

    • Bernice H Bernice H on Jan 21, 2018
      I cleaned homes for years,I got all my people to use liquid soap. I got tired of scrubbing soap off. I used tilex for years until I broke out in hives, and eventually had to quit cleaning jobs due to fibromyalgia. Was it toxic overload? 🤔probably,in my case.

    • Suzan Livengood Suzan Livengood on Jan 21, 2018
      I purchased a fabric shower curtain liner that I toss in the washer every couple of months and I never have any problems with mildew. I got it for about $14 at Target.

  • Sarge Sarge on Jan 21, 2018
    You use bottled water for this? What's wrong with regular tap water?
    bottled water costs about $.75 for 12 ounces, tap water is about $2.50 per 1000 gallons delivered to your home.

    • Joy.audrey56 Joy.audrey56 on Jan 21, 2018
      It doesn't say she used bottled water. That is merely depicted in the list of items used. I guess they couldn't find a picture of water coming from a tap.

    • Mercy V. Sabina Mercy V. Sabina on Jan 21, 2018

      Add an answer...

    • Kim Kim on Jan 21, 2018
      At the Wal-Mart in southern MN it is .88 a gallon. Our tap water is not good for drinking or cooking.

    • Alene Alene on Jan 21, 2018
      We get to enjoy all this information for free because of the advertising of products used. You can choose to use these or those of your own choosing. They are suggesting.. Great idea!

    • Dea29125645 Dea29125645 on Jan 21, 2018
      The description says water. It doesn't say bottled or tap. Picture was for demo only.

    • UpState UpState on Jan 21, 2018
      Montana has undrinkable water ?
      Thought that all Western US water was all pure and clean ?
      What's that all about ?

    • Debbie Germano Debbie Germano on Jan 21, 2018
      N/A. This is about cleaning mold.... NOT about what H2O tastes good.

    • Myrna Myrna on May 05, 2019

      She said MN - that is Minnesota.

      MT is Montana. Our water is fine here. 🤗

  • Lou Lou on Jan 21, 2018
    Is there an "after" picture. I only see the before.

    • Maureen greene Maureen greene on Jan 21, 2018
      TThe last picture is clearly the after.

    • Anessia Steward-Martin Anessia Steward-Martin on Jan 22, 2018
      you can also just mix half water half bleach in a spray bottle and just spray it down really good but make sure to wear a mask because it is strong but it work just as good tub is white as ever

    • Cheryl Glodowski Cheryl Glodowski on Jan 22, 2018
      Sorry, but I still see mold in the last picture. I think a spray bottle with bleach water would be more effective. I'm going to also try the hydrogen peroxide. Do you use it full strength?

    • Bambi Bambi on Jan 24, 2018
      @Cheryl Glodowski. Yes there is still some mold showing in the last picture as the bleach did not remove all of it. But if you look at the first picture and the last picture there is definitely a difference.

  • Debbie Renock Debbie Renock on Jan 21, 2018
    Does this work on silicone caulk ? Thanks

  • DinainOH DinainOH on Jan 21, 2018
    Doesn't the bleach (diluted or not) dry out the caulk so you wind up having to caulk it any way?

  • Cynthia Lindahl Cynthia Lindahl on Jan 31, 2018
    Wouldn't it be easier to just use a spray bottle with bleach and water? It works great?

    • Trisha Trisha on Feb 04, 2018
      I don't know why you just can'use clorox gel toilet bowl cleaner it stays and forget the cotton balls.

    • JJM82763 JJM82763 on Oct 02, 2018

      That is what I do any time and every time we shower

    • Mary Dodge Mary Dodge on Oct 02, 2018

      Over time, strong chlorine can damage the surface of shower walls and tubs, so i wouldnt spray it on. Manufacturers recommend solutions of Dawn, white vinegar, and water for spray cleaning. Using the cotton balls with bleach and controlling drips sounds like a good way to attack the caulk mold. I'm going to try it!

  • Diane Diane on Oct 02, 2018

    i have this mold in around my shower Bottom but it’s marble, will this hurt it or do anything to hurt it???

  • Ellen Keyes Ellen Keyes on Oct 02, 2018

    Have you used the idea of a paste of baking soda and bleach? The baking soda is just a conveyor for the bleach so the cotton balls may stick well to the caulk and you can paint the paste on the vertical areas. It worked really well and lasted several weeks. I have noticed that those sprays you buy in stores don't even last two days.

  • Ulysses Ulysses on Oct 02, 2018

    I got mold on the tap of the shower is growing on top of the ceiling it's painted what to do ? With out dameging the sheet rock on the ceiling

  • Carolina's Art Carolina's Art on Oct 02, 2018

    Why not use bleach only? why mix with water?

    • Karl L Karl L on Oct 02, 2018

      Way too strong using straight bleach. You could burn skin and nostrils.

      A little bleach in water is more than effective even if only 5 drops in a gallon!

      So just give a splash of bleach in your mix.

  • Ya-Man Ya-Man on Oct 02, 2018

    What's the ratio of water to bleach?

  • Cynthia Arum Cynthia Arum on Oct 02, 2018

    My bathroom doesn't have a window, and doesn't have a fan, too. So what would I need???

    • Dale Dale on Oct 02, 2018

      I would set a fan up in the doorway leading into the next room. Have a window open for ventilation.

    • Beth Beth on Oct 02, 2018

      Well, Cynthia, no wonder you have mold! I don't know how your home passed inspection without either an exhaust fan or window, but you can purchase a combination overhead light and exhaust fan at any home supply store for $100 or less.

  • Viv31725861 Viv31725861 on Oct 02, 2018

    Is there an alternative to bleach? I have birds and the bleach fumes will kill them.

    • Beth Beth on Oct 02, 2018

      Viv, I don't know of anything that will kill mold other than bleach. However, the hint here was to use it if you wanted to avoid taking out the old, moldy caulking, so your alternative is to go ahead and do that and re-caulk. Otherwise, remove the birds from the house while you use the bleach and for the day after. Get a good exhaust fan, and run it when you bathe and for a while after, and you shouldn't have mold build-up.

    • Patricia Pittman Patricia Pittman on Oct 02, 2018

      I found a recipe on Hometalk recently for mold using baking soda , vinegar and lemon juice in a spray bottle. Also another where the person bought a package of cotton "rope" from a beauty ship supplier that beauticians use when giving a customer a perm.

    • Tammy🌻 Tammy🌻 on Oct 02, 2018

      I use hydrogen peroxide,non toxic, antifungal, and kills mold spores.Spray area leave for at least 10 minutes

  • Beth Beth on Oct 02, 2018

    Isn't cotton coil, like they use at the hair salon, non-absorbent? I mean, the whole point of it there is to keep the solution from getting on your skin, so if you use it here in the bathroom, does it really soak up the bleach solution?

    • Patricia Pittman Patricia Pittman on Oct 02, 2018

      You soak the rope in bleach and then lay it on the grout around the tub. I don't recall how long you leave it whether it's a couple of hours or overnight. If anyone else saved that hint maybe they can reply.

  • Elise Elise on Oct 02, 2018

    Doesn’t eat away the grout?

    • Pixybrat Pixybrat on Oct 03, 2018

      Many bathroom cleaning products contain bleach, so i wouldn't think that the bleach would hurt the grout.

  • Fid28162091 Fid28162091 on Oct 05, 2018

    Will this work on stains on stucco?

  • Donna Donna on Oct 05, 2018

    What about how to get black mould off wallpaper in the bathroom

  • Anna Anna on Oct 06, 2018

    Why not just cut it all out, use the bleach to clean up residue and recaulk around the tub after it’s thoroughly dry?

    • Kathy Kathy on Oct 08, 2018

      If it's your only bathroom/tub/shower, the recommended dry/wait time after cleaning and recaulking, and before using is 2-3 days. You have to initiate the cleaning, wait 24 to 48 for that to dry befire caulking. Then wait another 24+ hours for caulk to cure properly. Can you go that long without a shower?

    • Anna Anna on Oct 08, 2018

      Good point, I have two bathrooms, so it would work for me, not necessarily for everyone.

    • Kathy Kathy on Oct 22, 2018

      I am a terrible caulker - it always looks bad. And - tearing up the caulk sounds easy, but it is very labor intensive.

  • Deborah Moss Deborah Moss on Oct 20, 2018

    What is the ratio with bleach and water?

  • Gabrielle Falk Gabrielle Falk on Oct 24, 2018

    Bleach does not kill mould - at all. It bleaches ie whitens, the grouting/caulking, but does not kill the mould. I know from experience. That's why the mould returns. There are other ways - vinegar is not terribly successful. Best to go to Dr. Google, and see what is in the offing. I tried cleaning the bathroom ceiling with bleach for small mould spots (the window is always open and we use the extractor fan), but the mould always returned. Had a painter come in and he applied some foul smelling undercoat on the ceiling, and then used a mould retardant paint. He said to me, even tho' I already knew, that bleach does not work. Just colours. Best to get rid of the caulking - I know a yuk job to re-do, remove all the residue, and give the bath/tiled wall a good scrub. What I've done in the past is used my hair dryer to dry wet spots like the bath surround, as mould does not like heat. In re-caulking make sure that there are no little gaps. Is the grouting on the tiles keeping the water out? Good luck.

    • Michael Conner Michael Conner on Oct 27, 2018

      Bleach kills mold and is very effective if used on hard non porous surface. In this case it would not. Bleach does kill mold but not on everything.

    • Karen Daniels Karen Daniels on Nov 04, 2018

      I did this exact method 2 1/2 years ago after moving into our new home. It’s never come back. If mold is coming back it is due to poor ventilation most likely. Always use an exhaust fan and leave the shower curtain or shower doors open a smidge on both sides to allow good ventilation. Hope this helps :D

    • Wanda Rodgers Wanda Rodgers on Nov 08, 2018

      I have looked up several sources. They all say bleach mixed with water is the solution to get rid of black mold.

    • Melanie Shearman Melanie Shearman on Mar 08, 2019

      When my parents had their Bictorian house repainted after 40 years, the house painter started with a power wash of bleach water to remove the mold in the wood before he started painting.

    • Ann Ann on Mar 16, 2019

      After you go to all this trouble. Get you some tea tree oil from the drug store and Qtips and spread over all you cleaned. It will kill the mold and it will not cone back. I do mine once a month with two of us showering everyday.

      You can get tea tree oil at the drugstore. Good luck.

    • Kathy Kathy on Mar 23, 2019

      I use H202(Hydrogen peroxide) borax; vinegar; baking soda when killing mold wait 15 mins b4 scrubbing/cleaning the spores will give off toxinx while being killed once dead scrub clean safely

    • Gabrielle Falk Gabrielle Falk on Mar 24, 2019

      Thank you for replying. How much do you use of each product? Do you use hydrogen peroxide, borax, white vinegar and baking soda? All together. thanks for your help.

    • Joy Joy on Apr 20, 2019

      I am a cosmetologist and you can purchase cotton in one long strand at any beauty supply store. Some stores may sell only to licensed cosmetologist so just check first. You can even ask at any beauty salon if they would sell you some. Then all you need to do is tear off at your desired length. That would be so much easier to use than all those cotton balls. It's not expensive and quite absorbent

    • Hydrogen Peroxide is very good for removing mold. I used it on the painted walls in my bathroom

    • Nancy Nancy on Apr 25, 2019

      Sally Beauty carries it. Open to all to buy!

    • Kate Kate on Apr 28, 2019

      Tei Tree Oil has it's benefits.

    • Jogmom Jogmom on Apr 28, 2019

      The cotton Ribbon can be purchased off Amazon. That's what I use. It's a lot easier than the cotton balls.

    • Christie Christie on Apr 28, 2019

      I use a Dawn dish detergent (plain or oxi kind), borax, vinegar, and water cleaner recipe. No scrubbing, kills mold, and definitely doesn’t come back!! I only use it every few months!! In between I use recipe I make with vinegar, water, and essential oils (lemon, orange, whatever I’m in the mood for making). I make the kids and my husband spray the shower and tub lightly after each use with it also!! :) I’m allergic to bleach so I have to be careful using it and inhaling it. Plus, I hate getting it on my clothes from splashes. ;)

  • Julia Aguirre Julia Aguirre on Oct 28, 2018

    How to redo marble or even change the look to something more modern or antique

  • Denia Denia on Feb 11, 2019

    will this work the same on sheep rock?

    • Kara Saurenman Kara Saurenman on Mar 07, 2019

      Do you mean SHEET ROCK? It's the cardboard covered white gypsum used on walls....sometimes called "wakeboard". If so, the answer is NO. Sheet rock should be painted & never put water on it. It will mold, mildew & fall apart. Never heard of "sheep rock".

    • Barb Valley Barb Valley on Apr 06, 2019

      Do you mean sheet rock? (Drywall)

    • Suz Suz on Apr 13, 2019


    • Terri Lynn Terri Lynn on Apr 28, 2019

      Well it's sheetrock an no it won't work on sheetrock. It's best to use green board in the bath areas. (A type of drywall of sorts designed to help fight mold) also "kiltz" is a chemical that you paint on your walls/ceiling area prior to painting.

    • Kathy1220 Kathy1220 on Apr 28, 2019

      You mean SHEET rock. And no as sheet rock will just get saturated and break down.

    • Deb Crockett Deb Crockett on Apr 28, 2019

      I would like to share with you my experience with cleaning up mold. Bleach will take away the color but not kill it. Instead mix white vinegar and hydrogen peroxide in equal amounts and they will kill the nasty stuff. I love the idea of the cotton balls though.

      I learned this when my daughter lives in a mold infested apartment. Bleach can actually encourage the mold to come back and grow worse.

    • Ghp26067822 Ghp26067822 on Apr 28, 2019

      What is Sheep Rock ?

    • Sandy Sandy on Apr 28, 2019

      Why didn't the people who owned the apartment take care of the mold, report them to the health people. Very unhealthy.

    • C C on Apr 28, 2019

      SHEEP rock? :)

    • Lynn Lynn on Apr 28, 2019

      Sheep??? You mean sheetrock?

    • Seagee Seagee on Apr 28, 2019

      Denia. Please ignore all the holier-than-thou ladies who never learned better manors.

    • Lynne Johnson Lynne Johnson on Apr 28, 2019

      You sure don't want to get sheet rock wet.

    • Janice Janice on Apr 28, 2019

      When I had flooding, the company sprayed the affected damp sheet rock with a strong mixture of bleach and water to get rid of the mold and possibility of mold growing. I would not use the cotton ball method on sheet rock as that would soak the sheet rock and perhaps make it disintegrate. Spray it well and then let dry or place a fan nearby to circulate the air dry the mixture that has been applied as quickly as possible.

  • Randi Randi on Apr 28, 2019

    What about the wall grout?

  • Gail Gail on Apr 28, 2019

    why can't you just spray it with bleach solution....respray to keep it damp rather than using cotton balls?

    • Terrie Dasher Terrie Dasher on Apr 28, 2019

      just spraying with bleach and water has always been my go to for this project.

    • Phyl Phyl on Apr 28, 2019

      scrubbing bubbles with bleach works great and you don't need cotton balls.

    • Sandy Sandy on Apr 28, 2019

      I was going to say the same thing this way you wouldn't have to waste all those cotton balls. Just keep a small bottle just for bleach and water beside your tub and spray away 2-3 time a week leave the window open and don't use too much bleach. I have a bath fitter and everything is lifetime except the caulk, of course. Every couple of days I spray the caulk and when I need to I will replace the caulk in which they do not cover any way.

    • Lynn Lynn on Apr 28, 2019

      I do the great! Good on lower part of shower curtain.....also spraying with lysol aerosol keeps mold away longer

    • Kathy Shelton Kathy Shelton on Apr 28, 2019

      That is what I do. I have a spray bottle of bleech/water and I just spray all the tiles and around the tub. Works fine - I start spraying up high and work my way down. Cotton balls to time consuming for me.

    • Irene Gronewald Irene Gronewald on Apr 28, 2019

      ye,spray it on,what I would do,plus I take hot water and fill bottom of shower 3/4 or more ,up add some bleach...let sit 15 minutes, comes clean

    • Melissa Espejo Melissa Espejo on Apr 28, 2019

      I tried just spraying the bleach and found the cotton balls soaked into the mold overnight worked 💯. My shower was spotless!

    • Njlou Njlou on Apr 28, 2019

      I use the thickened Clorox. They call it dripless. put some in a small cup and apply with an old toothbrush, but leave it thick. Let sit about 1hour+.....job done!

    • Sherilyn Lawson Sherilyn Lawson on Apr 28, 2019

      yep, i use the clorox bleach spray, or the thickened stuff and let it great

  • Cathy Shay Cathy Shay on Apr 28, 2019

    Is this too harsh for fiberglass. Will it discolor the fiberglass tub.

  • Carol Perkins Carol Perkins on Apr 28, 2019

    Can this be done when your shower has marble instead of tile????

    • Maxine Waller Maxine Waller on Apr 28, 2019

      Yes, but just spray it for an easier fix.

    • Brooklyn Brooklyn on Apr 28, 2019

      No ABSOLUTELY NOT!!! You can Not use bleach on marble. I had a client who used a bleach product on her marble shower and completely ruined it. There was nothing I could do for her. You can try baking soda and peroxide with a toothbrush...but rinse as you go. Do not let anything sit on marble.

    • Kay Arnette Kay Arnette on Apr 28, 2019

      Is one bleach better than another like Clorox and a non name brand or is bleach just bleac

    • SpudBread SpudBread on Apr 28, 2019

      HA-- bleach is bleach!

  • Rose Rose on Apr 28, 2019

    do you have a name of a product? Thx

    • RC Leach RC Leach on Apr 28, 2019

      I think bleach is bleach I have never noticed any difference in store brands and higher priced bleach. Check the ingredients against each other in the store, and since it only takes a little bit, just buy a small container of the one you want. Clorox is the only one I can remember the name of. It may or may not be the best.

    • Michelle Michelle on Apr 28, 2019

      Kaboom works just as good, I use the spray foam!

  • Katen Katen on Apr 28, 2019

    Does this remove the mold or just whiten the mold

  • T-Robert T-Robert on Apr 28, 2019

    Can you do this to wood moulding? Bought the solution that supposedly cleans mold from wood, but it did not work.

  • Barbara Barbara on Apr 29, 2019

    What is ratio of water to bleach?

    • Liz Liz on May 05, 2019

      Looks like no water just the bleach

    • Jan Jan on May 05, 2019

      The article says use only a little bleach in the water but nothing specific. I think I would start with 3-4 cups water and no more than 1/4 c bleach. Ventilate well.

  • Barbara Barbara on Apr 29, 2019

    Do you know of any non bleach products?

  • Iris Iris on May 05, 2019

    Hi! How long does the mold stay away from coming back?

  • Sheryl Sheryl on May 05, 2019

    Why not try long rope cotton and won't the mold reappear?

  • Isabella Isabella on May 05, 2019

    How do u remove dirt stain from the tub. We try everything

  • Kathy Kathy on May 05, 2019

    I have found that nothing cleans grout except pure clorox, But I always wonder if I am rally getting rid of the Mildew... or just bleaching it white??

    • Melissa Melissa on May 05, 2019

      Best thing ever is baking soda and vinegar... Put baking soda on it spritz it with vinegar... Then lightly scrub works ah-mazing!

    • Amber Amber on May 05, 2019

      Baking soda, dawn and vinegar, then give it a really good rinse (because over time vinegar can corrode if not rinsed off well!) Best mix and not only are you just bleaching it white, but it also corrodes it over time to where you will have to replace the caulking anyways.

    • Bleach does not kill the mold spores or mold roots it only discolors it and makes it somewhat white again making people think it’s gone. But it’s a matter of time before it grows again. Use a product named “Concrobium Mold Control”. I get it at The Home Depot in a spray bottle. It’s about $9-10 for a 32 oz spray bottle. I hope that helps you

    • Teena Teena on May 05, 2019

      Buy X-14 - it’s Clorox and baking soda - spray on after 10 minutes or so rinse. Just like new. I have to buy it from a hardware store. Easy no mess and your done. Use gloves, mask and vent.

    • Deborah Paulding Deborah Paulding on May 05, 2019

      What measurements do you use to do a whole bathroom

    • Carolyn Carolyn on May 05, 2019

      Bleach actually feeds mold spores. It only cleans the surface, not deep down, so the mold returns.

      Vinegar or hydrogen peroxide are more efficient and non-toxic! Google both to learn!

  • Niheala Reeves Niheala Reeves on May 05, 2019

    Does anyone know how to get rid of the pink stuff?

    • Karen Karlen Karen Karlen on May 05, 2019

      From microbiology days, pink = staph aureus. Lysol, bleach or vinegar and soap. Have also used hydrogen peroxide (H2O2)in the bathroom as it does wonderful things like helping a slow drain run faster. When it bubbles,that is a sign that is is working plus it breaks down into water (H2O) as its extra hydrogen molecules (H) glom onto the gunk.

  • Karla Moore Karla Moore on May 05, 2019

    Does the bleach “eat away “ the sealant?

  • Kristen Kristen on May 05, 2019

    Can it be used on colored caulk?

  • Dolores Masker Dolores Masker on May 05, 2019

    Is mold killed or bleached according to previous knowledge from Servpro.

    • Cindy Cindy on May 05, 2019

      My kids tell me that black mold is still there but just bleached. It doesn’t get rid of it. I’m glad I live in a part of Arizona where we don’t have much black mold.

  • Alice Alice on May 05, 2019

    The Clorox will bleach the mold, but will it actually get rid of it permanently?

    • Mary Mary on May 05, 2019

      I used bleach water and a rag on a corner in my shower and left it overnight, in the morning the mold was gone. I did that 4 years ago and it still looks pretty darn good. However, I didn't know how to get a wash rag to stay on the wall overnight so I am looking forward to using the cotton balls

    • Alex Alex on May 05, 2019

      What better ? Clorox or any cheep bleach????

  • Connie Thomas Connie Thomas on May 05, 2019

    I have a little bit of mild starting on my popcorn ceiling. How do I get rid of that without messing up my ceiling?

    • Rachel Bivens-Rees Rachel Bivens-Rees on May 05, 2019

      I had that happen. We used Kills. Then painted it with white paint ( flat not gloss) never came back. I painted kills over more of area that had mold so it wouldn’t grow.

    • Suzy Suzy on May 05, 2019

      Put water in a spray bottle and add a little bleach. Spray it on the mold and let dry. Also works for water stains on the ceiling. I would also check your roof. There’s water getting in somewhere. Hope this helps 🙂

    • Regina Dignowity Regina Dignowity on May 05, 2019

      You can use bleach but it will come back! Light spray.

    • Jackie Brown Jackie Brown on May 05, 2019

      They say bleach doesn’t actually kill mold. I read up on what actually kills mold and chose a more natural combo of white vinegar, peroxide and Thieves cleaner. This was very affective in killing the black mold and keeping it away, while not using anything harsh, because there is a baby in our home. Like the person above said, “kills” does also work if you want a harsher chemical to kill it.

  • Cynthia Cynthia on May 05, 2019

    Any suggestions on how to make my teenage son's room stop smelling like a boys locker room?

    • Tammie Tammie on May 05, 2019

      Putting some baking soda in his shoes is a big help with smell. If it's real bad I'd recommend a small air purifier.

    • Yemaya Yemaya on May 05, 2019

      YES! Been there with hubby lol. Dip a slice of bread in white vinegar then place it on a flat plate. I did this with 4 slices f bread and placed them in different areas of room. I was i little worried the room would smell like vinegar but it didnt. The bad odor is absorbed into bread by vinegar. Also, place softner dryer sheets inside of hamper. Also lol, the shoes he wears that day, put some alcohol in a small spray bottle, spray the inside of those shoes (you dont have to saturate) just 3-4 sprays and this is the most important part... LEAVE THEM OUTSIDE OVER NIGHT.

    • LaNita LaNita on May 05, 2019 his windows to air out. Remove any and all dirty clothes and smelly shoes(wash them or spray with really good order eaters). Then spray any and all soft surfaces down with Fabreeze!! Sprinkle the carpet with a gud brand of carpet powder. Then get sum gud smelling plug-ins😊. Boys will be boys and smell like them too sadly😩. Also get him a dirty cloths basket with a lid and no holes to help contain the order. And after all that, and it don't help...just throw the whole room away including the boy😂😂😂 jk