We get called to look at failed floors regularly. Almost all of them fall into four categories, and three of the four are specific to how this valley treats concrete.
1. Hot tire pickup
Summer pavement in Henderson routinely exceeds 150°F. A tyre driven on that and then parked carries enormous heat into a small contact area. If the coating underneath is soft, under-cured, or a low-grade product, the heat plasticizes it and the tyre's plasticizers migrate into it. When the car moves, the coating comes with it.
The result is unmistakable: two patches lifted away in the exact footprint of the front tyres, surrounding floor untouched.
How to avoid it. A properly cured system with a polyaspartic topcoat and adequate film build. Full cure before the car goes back on it — parking early is a real contributor. Single-part water-based DIY kits are the most vulnerable products on the market in this respect.
2. UV ambering
Epoxy is aromatic chemistry. Exposed to ultraviolet light it yellows — not a defect, an inherent property. In a garage with the door open several hours a day, the first few feet inside the threshold get significant UV, and they discolour. The line where the sunlight stops is sharp enough that people often think something was spilled.
How to avoid it. An aliphatic topcoat — polyaspartic or aliphatic polyurethane. This is the single strongest argument for not finishing a Henderson garage in straight epoxy, whatever the price difference.
3. Green slabs
Henderson has a lot of newer housing. Concrete needs roughly 28 days to reach the point where it can take a coating, and new-build garages get coated inside that window more often than the industry admits — sometimes by builder-arranged contractors working to a completion date.
A green slab is still releasing significant moisture and hasn't developed full surface strength. Coating it produces adhesion failure that shows up six to eighteen months later, long after anybody connects it to the timing.
How to avoid it. Confirm the pour date. If it's inside 28 days, wait. If nobody can tell you the date, test the slab.
4. Moisture drive
Least intuitive in a desert, and genuinely common. Landscape irrigation running against a foundation, a slab poured without a vapour retarder, or fill that stays damp under the pad all push vapour up through the concrete. Sealed under a coating, it lifts the film in blisters.
How to avoid it. Test before you coat. See moisture testing and vapour barriers. Move irrigation away from the slab if it's running against it.
Diagnosing your own floor
| What you see | Most likely cause |
|---|---|
| Two patches missing where tyres park | Hot tire pickup |
| Yellow-brown band near the door | UV ambering of an epoxy topcoat |
| Round raised bubbles across the field | Moisture drive |
| Large sheets lifting cleanly, clean concrete underneath | Inadequate prep (no grind) |
| Coating gone at the perimeter only | Edges never ground |
| Cracks reappearing through the finish | Active substrate movement |
Send us a photo and we'll tell you which of these you're looking at, whether or not you hire us. The diagnosis is usually obvious to someone who sees these weekly, and it changes what you should be asking other contractors.
Two failure modes that are not climate related
The four above are the Henderson-specific ones. Two more account for most of what remains, and they are pure workmanship.
Perimeter delamination
The floor looks perfect across the open field and is lifting along the walls. This is the signature of skipped edge grinding — a walk-behind machine cannot reach the last inch or two, and hand grinding that perimeter is slow, uncomfortable work. Skip it and you have unprepared concrete exactly where water and cleaning solution collect.
It is also the easiest failure to spot early. Look at the last inch against your wall. If the coating looks thinner there, or you can see where the machine stopped, that is what you are looking at.
Off-ratio or cold-cured material
Two-part resins cure by chemical reaction, and the ratio is not approximate. Material mixed by eye, or mixed in a partial batch without measuring, does not fully cross-link. It stays soft indefinitely — not tacky necessarily, but softer than specification, which makes it far more vulnerable to everything else on this page. Hot tire pickup on a floor that should have resisted it often traces back here.
What a failure timeline usually looks like
| When it shows | Most likely cause |
|---|---|
| Days to weeks | Off-ratio mix, applied over a wet or contaminated slab, or parked on too early |
| 3–12 months | Inadequate profile. The bond was marginal from the start and thermal cycling finished it |
| 1–2 years | Moisture drive, or hot tire pickup on an under-specified product |
| 2–4 years | UV ambering becoming obvious; thin-build wear in traffic paths |
| 10+ years | Normal wear. This is a recoat, not a failure |
The pattern worth noticing: almost everything before year three traces to installation rather than to the product or to how you used the floor.
If your floor is failing now
- Photograph it — wide shot plus close-ups of the failure edge.
- Find your paperwork. If it is under five years old there may be a live warranty, and that conversation should happen before you pay anyone else.
- Do not coat over it. Whatever it costs to remove properly, it costs more to remove twice.
- Establish the cause before the fix. A moisture failure recoated without mitigation will simply blister again.
Send us the photos either way. We will tell you which of these you are looking at, whether or not you hire us — and knowing changes what you should be asking whoever quotes it.
The uncomfortable summary
Almost none of these failures are product failures. The coatings sold today are excellent, and even mid-tier products perform well when installed correctly. What fails is process: the slab was not ground, or not tested, or the topcoat was chosen on price, or the crew was working too fast in too much heat.
That is genuinely good news for you as a buyer, because it means the questions that predict a good outcome are answerable before you sign anything.
Common questions
My floor is only two years old and it's already lifting. Is that normal?
No. A properly installed floor should go 15 years or more before it needs anything beyond a topcoat refresh. Failure at two years points to prep or product selection, not wear.
Worth checking whether you have any paperwork from the original install — a warranty may still apply, and it's a conversation worth having before you pay someone else to fix it.
Can a failed floor be repaired rather than replaced?
Depends on how much of it is failing and why. Isolated failure over an otherwise well-bonded floor can be cut out, re-prepped and patched, though colour matching an aged floor is imperfect.
Widespread failure, or failure caused by moisture, means full removal. Patching over a moisture problem just moves the blisters somewhere else.
Does a warranty actually cover this?
It depends heavily on what the warranty says and whether the slab was ever tested. Most coating warranties exclude substrate moisture — which means if nobody measured it before installing, the contractor has a straightforward defence.
That's the practical reason to insist on testing up front. It's not just about the floor lasting; it's about who carries the risk if it doesn't.
Ready for a floor that survives a Henderson summer?
Free on-site measure, honest assessment of your slab, and a written quote you can hold us to.