A cracked garage floor puts homeowners in an uncomfortable spot: the fixes range from a tube of filler to a full tear-out, and every contractor you call seems to recommend whatever they happen to sell. We do all three — repair, resurfacing, and replacement — so here's how we actually decide, with no thumb on the scale.
First question: what kind of cracking is it?
Hairline shrinkage cracks — thin, stable, with both sides level — are close to normal. All concrete shrinks as it cures, and if the original pour skimped on control joints, the shrinkage cracks wander instead of following joints. Ugly, mostly harmless.
Working cracks — visibly open, growing over the seasons, or with one side higher than the other — mean movement under the slab. Around here that's usually water in the red clay: the ground swells and softens, support goes uneven, and the slab breaks over the soft spot. This is a different animal from shrinkage, because the cause is still active.
Surface deterioration — scaling, spalling, flaking — is the top of the slab failing while the body may still be sound, often from a weak original finish or de-icing salt exposure.
When repair is the answer
Stable shrinkage cracks and minor spalls call for repair: rout and fill the cracks, patch the spalls, move on. It's the cheapest path and the right one when the slab is fundamentally sound. We'll tell you when this is all you need — a filled crack costs a fraction of anything else on this list.
When resurfacing is the answer
If the surface is rough or ugly across a wide area but the slab underneath is sound, level, and stable, a resurfacing overlay gives the floor a new wear layer at well below replacement cost. The honesty test: resurfacing a slab that's still moving wastes your money, because the new surface cracks right where the old one did. Overlay products also only perform when the prep and installation follow the manufacturer's specs — which is how we install them.
When replacement is the answer
Heaved or settled sections, wide working cracks, or a slab broken into rocking pieces mean the problem is under the floor, and nothing applied on top fixes ground. Replacement lets us correct the actual cause: excavate the bad material, build a compacted gravel base, add a vapor barrier, and pour to proper thickness with reinforcement chaired in the slab and joints where they belong. It costs the most and it's the only option that resets the clock.
How we'll call it at your estimate
We look at crack type, levelness, movement history, and what you want from the floor — parking cars tolerates what a coated shop floor won't. Then we tell you plainly which tier fits, and the written proposal defines the scope and the price. No change proceeds without your written approval.
Get a straight answer on your floor
Request a free on-site estimate. Devin or Davy will walk your garage, tell you honestly whether it's a repair, a resurface, or a replacement — and put the answer in writing.