You’ve noticed cracks in your garage floor. Maybe there is some surface damage or areas that have become uneven. You find yourself asking, “When is garage floor repair worth it versus full demo and repour? Let’s take a look at the conditions which indicate garage floor repair is a worthwhile investment. We’ll also cover when demolition and replacement is the smart choice instead.
Knowing the difference could save you money by preventing you from repairing your garage floor only to have the issues return a few years later.
What Types of Garage Floor Damage Can Usually Be Repaired?
Oftentimes, the damage that appears on garage floors can be repaired without needing to replace the entire slab. Garages are made of concrete, which is one of the most durable surfaces around. But even concrete can become cracked or worn over time from age, moisture, vehicle traffic, chemicals, and Florida’s fluctuating weather. Professional concrete repairs can fix many instances of minor to moderate concrete damage.
Typically includes:
- Hairline cracks
- Minor cracks from shrinkage
- Surface spalling
- Pitting and flaking
- Cosmetic issues
- Small areas where damage has occurred
As long as the concrete floor beneath the damage is stable, repairing these problem areas and refinishing your floor can give it years of additional life.
How Can You Tell If the Concrete Is Structurally Sound?
Typically, the real telling factor of whether you need a repair or replacement comes from the condition of the concrete beneath what you see on the surface.
You may have cracks in your garage floor that show areas of damage. But if the slab is still solid underneath, then repairing those cracks and surfaces will allow it to last for years to come.
A professionally poured garage floor that:
- Has cracks that are hairline or small
- Has little to no vertical displacement
- Isn’t sinking or settling significantly
- Has minimal intrusion of moisture
- Hasn’t suffered major structural movement
- Is still resting on healthy soil conditions
Will most likely provide great results with the help of professional repair and restoration.
When Are Cracks a Sign That Repair Is Enough?
Cracks on your garage floor do not always mean there is structural damage to the slab.
As concrete ages, it expands and contracts as temperatures change. This can cause garage floors to crack over time. However, small cracks are normal and can be repaired without having to demo and repour your garage floor.
The cracks that can typically be repaired are:
- Hairline cracks
- Minor cracks due to shrinkage
- Cracks that have stopped expanding
- Isolated cracks with little width
- Cracks affecting only the surface
As long as the cracks are not continuing to grow in width, repair will usually be enough to restore your garage floor.
What Types of Damage Usually Require Full Demo and Repour?
There are several instances where you may need a new garage floor as the concrete has gone past the point of restoration. These are situations where the concrete slab has been damaged to the point where it has affected the structural integrity of your garage floor.
If your garage floor:
- Has severely sunk in certain areas
- Is heaved up from the ground
- Has large areas of broken concrete
- Shows large areas of vertical displacement
- Has structural cracks separating sections of concrete
- Has lots of moisture breaking through the surface
- Was improperly installed originally
- Is experiencing significant soil movement
Then the issues you are experiencing will likely return even after repairs.
Does Uneven Concrete Mean You Need a New Garage Floor?
Not always. There are some cases where your garage floor may be uneven that can be repaired.
Your garage floor may sink or become uneven for a number of reasons. Whether it’s settling or just normal wear, your concrete may have low areas. Depending on the severity of your problem, you may be able to have your concrete ground leveled, or repaired to create a smooth surface.
However, if your concrete is uneven due to large portions sinking because of foundation or soil issues, you will more than likely need to have it replaced.
Professional contractors can assess your garage floor and determine whether levelling methods will fix your problem. Or if there are bigger structural issues at hand.
Is Surface Spalling a Repair or Replacement Issue?
Garage floors that have started to experience spalling can usually be repaired.
Concrete spalls when the top layer of concrete starts to chip, break down, and flake off. This generally is due to moisture, freeze/thaw cycles, salt/deicing chemicals, and finishing issues.
Spalling typically only affects the top surface layer of the concrete. Professional contractors can repair areas of your garage that have started to spall by removing the damaged concrete and preparing it to be coated or polished.
Replacement is usually not needed unless your spalling has broken down much of the concrete past the surface.
How Does Cost Factor Into the Decision?
Typically repairing your garage floor will be much less expensive than a demo and repour.
Demolition and replacement require lots of labour, equipment, and disposal fees. Not to mention excavating the old concrete and allowing new concrete to be poured and cured. Then another visit to finish the concrete. Repairs can usually be done to fix your problems.
However, if your garage is going to continue to have problems because the entire slab is failing. Doing repairs can sometimes cost you more in the long run.
A good rule of thumb is that if you are going to have to have repairs done again in a few years. You’re probably better off just having it replaced.
How Long Do Garage Floor Repairs Last?
Repairs can last a very long time when done by a professional contractor.
There are many factors that determine how long your repair will last. But if you start to notice cracks in your garage floor, here are typical lifespans of some of the common repairs we listed above.
- 10+ Years for stable cracks
- Years for repaired spalling
- Lifetime if done with coating
- Lifetime of concrete if underlying issues are fixed
Proper preparation of the surface you are repairing is key.
Can Concrete Coatings Be Applied After Repairs?
Yes, they can. Repairing your garage floor is actually the first step to applying most garage floor coatings.
Coatings work best when your garage floor has been properly repaired and prepared. By repairing cracks and damaged areas of your garage floor, you make it smoother and get a better finished appearance.
Some options for coatings you may want to consider:
- Epoxy Garage Floor Coatings
- Polyaspartic Garage Floor Coatings
- Decorative Flake Garage Floor Coatings
- Polished Concrete Garage Floors
- Garage Floor Sealers
Coatings after repairs can make a world of difference when finishing your garage.
Why Is a Professional Inspection Important Before Making a Decision?
Because a trained eye can better help you understand what issues you are dealing with and what will provide the best long-term solution.
You may look at your garage floor and think you need a brand new floor. But some cracks may be repairable. Other times, you may have structural damage that will require a new floor. A professional contractor can assess the damage to determine.
- The cause of cracks
- Moisture levels
- If the slab is stable
- Foundation issues that may be present
- Type of surface deterioration
- Any prior repairs
- How long the repair or replacement will last you
Having someone come take a look at your garage floor will give you the upper hand in decision-making. You don’t want to just guess and end up fixing something that isn’t going to solve your problem.
When Is Garage Floor Repair Worth It Versus Full Demo and Repour?
Repairing your garage floor is worth it when the floor is still structurally sound. And your problems are either cracks, spalling, surface deterioration, or damaged areas.
Demo and repouring your garage floor is the better option when you start to have structural failure of your concrete. Such as your garage sinking, major cracks that have caused separation, or large areas of broken concrete.
If you’re wondering when a garage floor repair is worth it versus a full demo and repour? Contact Custom Concrete Prep and Polish to schedule your free inspection today and learn what your options are for your garage floor.
