How to do it.
Repair large cracks in garage floor.
Wear an n 95 respirator and turn on a fan to blow the concrete dust out of the garage.
When a garage floor is first poured the concrete begins to harden contractors say cure and when this process takes place the concrete shrinks a little.
If grease oil or dirt remains in or near the crack clean it thoroughly.
Fix the crack in your concrete garage or basement floor yourself by following these step by step directions.
Be sure to wear eye protection.
In the video below i ll show you how we repair garage floors that have a crack in them.
Use a wire brush a hammer and cold chisel or an angle grinder with a crack chasing wheel to loosen and break off nearby concrete.
Another reason for cracks on the floor of your garage is an improperly placed expansion joint.
Cut small grooves on both sides of the concrete.
Getting a professional to fix these types of cracks early can lead to less long term damage and the sooner you get it sorted out the better.
Cleaning and resurfacing the floor usually takes one day on the other hand clearing out your garage so you can work may take weeks.
Vacuum away all concrete debris.
Fill the crack with epoxy based concrete crack filler.
This will help hold the patch in place.
With the right materials and tools fixing a crack in your garage floor is something you can do yourself.
This ensures that the surface of your garage floor is smooth again.
How do you fix garage floor cracks.
Preparation and repair tools and methods depend on the crack width and quantity of cracks.
Using a diamond blade on your circular saw cut a 1 2 in deep groove along each side of the crack.
Before attempting the repair job consider the underlying cause of the crack to prevent future damage.
You ll also need to buy or rent some special tools so expect your total cost to be about 300 for this how to resurface concrete project.
A 20 foot square of freshly poured concrete will shrink about a 1 8 of an inch in each direction.
Garage floor repair usually involves fixing cracks or patching pitted and scaled areas on the surface.
This is easily repaired by injecting silica sand and a compound for floor crack repair into the garage floor crack.
Sweep away any loose debris then vacuum the crack.
Then i filled the deep cracks with cheap fine.
New homes cracks that occur in the first few months or years.
Using a hand grinder i leveled the floor on each side of large crack and widened it to the wide of the grinder.
With a cold chisel and large hammer undercut the edges of the crack.
For example large trees near your garage may have roots that reach under the floor disturbing the cement and causing it to crack.
There is little point repairing the crack if the floor is going to open up again in a couple of months time.
