Front of our garage at the ends the bricks and mortar have crumbeled

By no means am i pro on this one ,but I think I would check on an additive you can add to the mortar to help it stick better. The crumbling is a bit concerning to me, you may need a professional to come take a look and see if its something under the brick causing this problem. I hate to think my home was rotting behind the brick. Hope it's all good!

Found a few links, hopefully one will work for you!

https://www.thisoldhouse.com/how-to/how-to-repair-mortar-brick-wall

https://youtu.be/nL5w17iq-Iw

https://www.familyhandyman.com/masonry/how-to-repair-mortar-joints/view-all

Tinsleylilian - the first part of the problem how big of an area of brick are crumbling or is the mortar failing which is loosing the bricks? Pictures will help 100%. #1. Look at your foundation in this area for settling. #2. Look for water damage on the inside wall. If the sheeting behind the bricks is in good shape before you start your repairs add masonry clips to hold the brick to the wall. #3. if it is just mortar repair, chip away all the bad mortar and refill. There are mortar repair in caulking tubes with about three colors or you can buy ready mix mortar.

Nobody seems to be addressing the issue of the crumbling bricks. I have the same problem. The bricks that crumble are in random places with no other bricks touching them crumbling. The bricks turn powdery and start to disappear. I don't know what to do.

I have the same problem and found this video on Youtube. I hope this may help with your issue as well. Good luck

https://www.youtube.com/watch?v=kouoNweXR3g

The problem is moisture getting into the bricks....over time they crumble...especially if you have freezing temps in the winter...moist freezes and expands....and breaks.

See if the area in question, where the mortar crumbles, holds water?? If it does what you need to do is some grading to help alleviate the moisture... we mix mortar with water and so it breaks down just as easily with excessive amounts of water even when cured. The powdery mortar I would say is a bad mix from the initial install, I could be absolutely wrong about all of this, but I work with general contractors a lot and home inspectors and this is what they generally say is the cause. A solution to the problem of standing water or very saturated areas around your house... a French drain around the perimeter of your home! It's not cheap!! But if you aren't afraid of hard work you can do it yourself! Keep a photo journal of what you've done so that you can have a record of the Maintenace if you ever decide to sell your home. Double check with a landscaper who is familiar with French drains because I would hate to give the wrong information! Good Luck!!!

What kind of soil are you dealing with? If it is heavy in clay, footing drain pipes that catch water and carry it away from the house would be better than a French drain, I think, where you dig a trench around the perimeter of the house and fill it with gravel and hope it will drain away (to go where if clay won't absorb it?). Good luck.

I hate to tell you...you do not have bricks....you have brick veneer....take one loose and see if it is a full brick or just something about an inch thick....real brick is solid with no holes and fired in a kiln...these last forever....brick veneer is only for appearance of brick....brick veneer is not fired and will crumble causing water to get behind it....until you get to the source of where the water is entering and repair that, you will continue to have problems...this is especially essential if you live where it freezes....water gets in the crack--freezes---expands the crack until something breaks...think full coke bottle in a freezer,,,,word of caution: when buying a home builders want you to think you are buying a brick home...ask to see the actual brick used.....most will show you brick veneer...in some states to state a home is a brick home it must be real kiln fired brick two layers thick

As someone mentioned, adding an adhesive to the cement will help a lot, plus consider adding an anti-mould solution to stop the moisture rising from the ground which is compromising the integrity of the bricks. Another solution is to paint several coats of paint over the whole lot as well as adding the anti mould paint to the mixture for the lower parts. This way your wall will not look any different after you've cemented it.