What questions should I ask a garage floor coating installer in Dallas, TX before signing?

A Dallas, TX garage floor sits on Texas Blackland Prairie clay, one of the most actively expansive soils on the continent. That clay moves vertically in inches between wet and dry years, drags the slab along with it, and produces the cracking pattern you see in every established neighborhood from Lakewood out to McKinney. On top of that, a Dallas summer routinely runs sixty days above 100 degrees with slab-surface temperatures climbing well past that under sun. The installer you hire has to know all of that on the walk-through. The ten questions below are how you tell a verified Dallas crew from someone reading a national brochure, and what a bad answer to each one sounds like.

Why the bid conversation matters more in DFW than in newer markets

A 1955 slab in M Streets has lived through seventy cycles of clay heave and drought drop. A 2018 slab in a Frisco master-planned subdivision has been in the ground long enough that the soil under it has already started cycling, and the foundation engineer's report on file with the builder probably notes movement. Both slabs need a real installer who walks the floor and reads what the clay has already done before quoting a system. A salesperson with a brochure and a tape measure cannot do that work. Find your Dallas, TX crew through the local hub, and put the questions below to anyone bidding the job.

The ten questions, in the order they should come up

1. What diamond grind grit and how many passes on this specific slab? The right answer references a Concrete Surface Profile (CSP) target and explains that grit selection depends on what is on the slab now and what coating goes on top. A bad answer is "we acid-etch" or any version of skipping mechanical prep. Acid etching on a Lakewood slab that has cycled through wet and dry years does not produce the consistent bond profile a high-solids epoxy basecoat needs.
2. Are you doing a moisture test before product selection? Slabs in Preston Hollow and Lakewood sit on clay that holds moisture seasonally and pushes vapor upward through a porous old slab. A bad answer is "we have not had problems with that here." That is the answer of a crew that has not been called back to assess their own failures.
3. What basecoat chemistry, and is it matched to this slab and this climate? The Dallas standard for residential should be a high-solids two-part epoxy. The installer should name the manufacturer and the specific product, not say "industrial grade" or "professional epoxy." A vague answer dodges the chemistry question entirely.
4. Is the topcoat aliphatic polyaspartic, and is it UV-stable? The topcoat is the layer that meets a Dallas summer head-on. UV exposure through a west-facing garage door in Oak Cliff or a south-facing bay in Plano is intense enough to degrade aromatic chemistry inside a single July. The right answer is aliphatic polyaspartic with published UV-stability data. The wrong answer is "epoxy clear coat" or no topcoat layer at all.
5. Is this a single-day install for a standard two-car bay? A polyaspartic system supports same-day installation when the prep is done right. A bad answer is a multi-day install for a standard residential garage, which usually means the crew is using slow-cure epoxy as the topcoat instead of polyaspartic.
6. What is the cure schedule before walk-on and vehicle traffic? The honest number on a properly installed system is walk-on the next day and vehicle traffic in roughly three days. A bad answer is a week or more for a standard residential job, which again points to wrong topcoat chemistry.
7. What are the specific terms of the warranty? The right number is a Limited 15 Year Warranty covering adhesion failure, peeling, and delamination under normal residential use. A bad answer is "lifetime warranty" with no documented terms. Lifetime marketing without specific written coverage is a common red flag covered in our note on polyaspartic garage floor lifespan.
8. How are you handling cracks and spalling on this slab? A real installer walks the floor and points to specific cracks before quoting. Structural cracks caused by clay movement get epoxy or polyurea injection. Spalling at the door threshold and along control joints gets cut out and filled with rapid-set repair mortar. A bad answer is "we just coat over it," which is exactly how a young Dallas floor fails along the same crack line within a year. The deeper failure modes are covered in why epoxy garage floors peel.
9. Is the person walking my slab today actually installing the coating? In Dallas, where the same verified crew handles assessments and installs, the answer should be yes or "I work with the install lead daily and you will meet them on day one." A bad answer is a smooth salesperson who hands you off to a crew you will not see again.
10. Are you insured, and is the crew verified through the Amazing Garage Floors network? Verified means the crew has been trained on the specific product system, audited on installation quality, and stands behind the same warranty across the national footprint. A bad answer is a vague "yes we are insured" with no documentation, or a company name that does not appear in any installer directory.

What the right answers sound like together

A good Dallas installer will not just answer each question in isolation. They will connect them. They will tell you that your Lake Highlands slab needs a moisture test because of the clay, that the crack along the control joint has to be injected before the diamond grind, that the grind is going to take a coarser grit because there is residual sealer from a prior coating, and that the polyaspartic topcoat is what lets them finish the job in a day and hand you a 15 year warranty. They will sound like someone who has done this exact slab type a hundred times in this exact metro, because they have.

What a bad installer sounds like

The bad version answers each question in isolation and avoids specifics. "We grind." "Our epoxy is industrial." "Warranty covers the floor." If you ask follow-ups, the answers get vaguer rather than more specific. That is the conversation to walk away from before signing.

The specific Dallas context to test for

The installer should be familiar with what makes DFW concrete different from a generic suburban slab. Test for that with a few local-specific follow-ups.

• Pre-1970s slabs in East Dallas, M Streets, and Lakewood often have residual sealers, decades of contamination from gas-powered vehicles, and existing patches that need to be evaluated for compatibility with the new system.
• North suburban subdivisions in Frisco, McKinney, and Plano sit on clay that has not yet completed its first full wet-dry cycle, which means hairline cracks the homeowner has not noticed yet should be visible to a trained eye.
• Older slabs in Uptown Dallas historic homes and Design District lofts sometimes sit on poor drainage with no vapor barrier underneath, which makes the moisture test step non-negotiable.
• Spalling at the door threshold from rolling tires plus seasonal water exposure is common across every Dallas neighborhood and should be visible to the installer on the walk-through without you having to point it out.

What to ask if the installer pushes a DIY-equivalent product

Some installers in the DFW market bid low by quoting a thin water-based coating that is closer to a hardware-store DIY kit than to a professional system. If the number seems too low and the topcoat chemistry is vague, ask the question covered in our breakdown of DIY epoxy garage floor kits. A low-mil water-based product on a Dallas slab that sees triple-digit summer floor temperatures will fail within two years regardless of who applies it.

Book a free on-site assessment in Dallas, TX

Use these ten questions on every installer who bids your floor. A verified Amazing Garage Floors crew member will answer every one of them on the walk-through, in plain language, with specific reference to your actual slab. The assessment happens on your property, and you leave it knowing exactly what your floor needs. Schedule a free on-site assessment in Dallas, TX through the local hub and put the questions above to a real crew.