Homemade Outdoor Window Cleaner

4 Materials
20 Minutes

Chemistry Cachet is back with another science based DIY.

This cleaner is for outdoor windows, but it also works for indoor windows too! Be sure to read the blog post for instructions on that :) (chemistrycachet.com/homemade-outdoor-window-cleaner/)

This recipe is very easy to make, but it is also super cheap!



  • 1/2 cup water
  • 1/2 cup white distilled vinegar (5% acidity)
  • 1/4 tsp blue Dawn ( Why blue dawn? Read more here)
  • Basic spray bottle
  • Sponge or scrub brush (You can also use a microfiber scrub brush)
  • Rubber hose with spray nozzle

Directions for mixing the DIY outdoor window cleaner:

  1. In your spray bottle, combine the water, vinegar, and dish soap.
  2. Set the nozzle to stream if possible which will make it easier to reach all the window area.

Curious about why these ingredients are used?? Or different methods for using this? Read the blog post here.

The Easiest Way To Clean Outdoor Windows With Our Homemade Outdoor Window Cleaner:

  1. Spray your window with the homemade cleaning solution. As we mentioned above, setting it to stream can help reach taller areas.
  2. With a sponge or scrub brush (use anything soft and safe for windows), scrub the window area as best you can.
  3. With a spray nozzle attached to the rubber hose, spray every part of the window making sure all the cleaner is removed.
  4. You can air dry or wipe with a microfiber cloth to dry!

You can also just SPRAY AND WIPE this solution! Be sure to read these tips in the blog post.

Before And After

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Alexis @ Chemistry Cachet

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


Have a question about this project?

3 questions
  • Ticia
    on Aug 9, 2020

    IDK if anyone's asked this previously but here goes - do you pre-wet the windows with the hose before spraying on your solution? I only ask because 1/2 cup each of vinegar and water isn't very much so if you are cleaning multiple windows, do you prepare the solution in a large batch or keep refilling your spray bottle with the same amounts all the time. Since I'm getting ready to do my windows, I'd like to know and what about streaking? (on the glass not the people kind). TIA

  • DMc
    on Aug 10, 2020

    Wondering if this would work on plastic windows in a screen porch?

  • Ginger the farm gal
    on Aug 19, 2020

    I use this also, but the cleanest windows and mirrors, I ever had were cleaned with kerosene and very hot water. What is your opinion of it?

    • Alexis @ Chemistry Cachet
      on Aug 20, 2020

      Kerosene is a cleaning solvent, so it can definitely work for surfaces like this. It’s petroleum based, but also very flammable, so I prefer to not keep it around the home. You will get similar results with rubbing alcohol which is also a cleaning solvent and petroleum based. But, if it works for you, that’s great!

Join the conversation

3 of 5 comments
  • Suzanne Ellis
    on Aug 9, 2020

    i use this all the time. It works very we’ll.

  • Nancy Polka
    on Aug 22, 2020

    I have plants below my windows. Will the vinegar/dawn solution hurt my plants when I rinse it off?

    • Alexis @ Chemistry Cachet
      on Aug 25, 2020

      No, it is very diluted, so it doesn't bother grass or plants. I use this all the time around my windows and I have roses, bushes, and grass below. It does fine. For extra measure, you can always rinse your plants with the rubber hose :)

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