The epoxy floor coating industry in Greater Houston has a contractor quality problem. Low barriers to entry — a spray rig, some product accounts, and a Google Business profile — allow operators with minimal training and no track record to compete for the same projects as experienced installers who've been doing this work for years. The price difference between them can be small. The outcome difference is significant. This guide covers how to vet a contractor before you commit, what a legitimate quote looks like, and the specific red flags that predict a floor that peels within 18 months.
The Questions That Separate Good Contractors From Bad Ones
What surface preparation method do you use? The only acceptable answer is diamond grinding. Acid etching, which was the industry standard before diamond tooling became affordable, is inadequate for a permanent coating system on residential concrete — it doesn't achieve a consistent surface profile and leaves chemical residue. Shot blasting is appropriate for larger commercial floors. Any contractor who says they pressure wash and apply, or who doesn't have a clear answer, is not using the preparation method that determines whether an epoxy coating lasts 15 years or peels in 2.
Do you test for slab moisture before installation? In Greater Houston, the answer should be yes. Concrete slabs here have elevated moisture vapor emission rates that require moisture-tolerant primer products. A contractor who doesn't test moisture before specifying their primer is either unaware of the failure risk or ignoring it. Either is a problem.
What is the solids content of your base coat product? The base coat should be 100% solids epoxy. Products with lower solids content — water-based and solvent-based systems — shrink as the carrier evaporates, reducing final film thickness and producing a thinner, weaker coating than the wet application suggests. Big box store DIY kits are typically water-based. A legitimate professional system is 100% solids.
What is your topcoat? The topcoat should be aliphatic polyaspartic — a two-component fast-cure product that provides UV stability, chemical resistance, and hot tire resistance. Epoxy topcoats yellow under UV. Urethane topcoats are acceptable but often less durable. If the answer is "another coat of epoxy," the system doesn't have a UV-stable topcoat and will yellow and chalk on any floor that receives direct sunlight.
- No moisture testing before installation
- Mentions acid etching instead of diamond grinding
- Can't name the specific products being used
- Quote provided over the phone without seeing the slab
- Price significantly below other quotes (materials cost what they cost)
- No photos of actual completed work in your area
- Pushes for a large cash deposit before any work begins
- No written warranty on materials and labor
- Can't provide proof of general liability insurance
- "Epoxy" topcoat instead of polyaspartic on a sun-exposed floor
What a Legitimate Quote Looks Like
A professional epoxy floor quote should be provided in writing after an in-person site visit where the contractor has seen the slab. It should specify: the square footage being coated, the surface preparation method, the products being used by name or specification (not "professional grade epoxy"), the number of coats and their purpose (primer, base coat, topcoat), the chip color and broadcast method if applicable, the project timeline, the return-to-service timing for foot and vehicle traffic, and the warranty terms.
A quote that doesn't specify what products are being installed is a quote that gives the contractor permission to install whatever they want after you've committed. Product substitution — using a lower-cost product than what was discussed — is a common quality problem in the contracting industry generally and in epoxy flooring specifically. A written spec locks in what you're actually buying.
Ask for three references from completed projects in Katy TX or the surrounding area within the past 12 months. Call them. Ask specifically: did the floor peel or show any delamination? How does the floor look now? Would you hire them again? A contractor who's producing quality work has happy customers willing to talk about it. A contractor who's producing failures doesn't give out references from recent work — or gives references who are overly rehearsed and vague. Real customer references are the strongest quality signal available before you commit.
Why the Cheapest Quote Usually Isn't
Diamond grinding equipment rental, 100% solids epoxy, aliphatic polyaspartic topcoat, and the labor time to do a two-car garage correctly are not cheap. A legitimate two-car garage installation in Katy TX using professional products costs $1,400 to $2,200 depending on slab condition. Quotes significantly below this range are either using inferior products, skipping preparation steps, or employing inexperienced labor — usually some combination. The $800 floor that peels in 18 months costs more to fix than the $1,700 floor that lasts 15 years. The replacement involves full coating removal, which adds significant cost and labor to the reinstallation.
Get a Written Quote
We provide written quotes after every in-person assessment — specifying products, preparation method, timeline, and warranty terms. Serving Katy, Cinco Ranch, Sugar Land, Cypress, and all of Greater Houston.
(281) 715-0845