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

An Austin TX garage floor is reading the same UV index as a rooftop in Big Bend by mid-July, and the slab underneath you might be sitting on fractured Edwards Plateau limestone in Tarrytown or on Blackland clay along the east side of MoPac. Those are two completely different prep jobs, and the installer who shows up to your bid needs to know which one they are walking into before they quote a single dollar of labor. The ten questions below separate a verified Austin TX crew from a sales rep working off a tablet that has never been driven west of I-35.

Why the bid conversation matters more in the Austin metro

A 1939 bungalow garage in Hyde Park with the original slab is a fundamentally different scope than a 2022 production-home garage in Circle C Ranch. The Hyde Park slab has eighty Central Texas summers of UV photochemical breakdown worked into the surface laitance, possibly a layer of failed sealer from a previous owner, and an unknown moisture history. The Circle C slab is newer concrete on limestone-influenced subgrade with very different prep needs. A serious installer reads the slab in person before quoting. Find your Austin TX crew through the local hub, and use the questions below at the assessment.

The ten questions, in the order they should come up

1. What diamond grind grit and how many passes on this specific slab? The answer should reference a CSP profile (Concrete Surface Profile) target and explain 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 "we use whatever grinder is on the truck." Acid etching on a UV-degraded Hyde Park slab leaves you with bond to weak surface laitance, which lifts off within a season.
2. Are you doing a moisture test before product selection? Slabs in older central Austin neighborhoods like Rosedale and Travis Heights were sometimes poured without modern vapor barriers, and lots near Lady Bird Lake or along Shoal Creek may have variable groundwater dynamics. Vapor pressure pushing up through a slab is the most common single-year failure mode. A real installer brings a calcium chloride test or a relative humidity probe. A bad answer is "we have never had a problem with that around here."
3. What basecoat chemistry, and is it matched to this slab and this climate? The standard for Austin TX residential should be a high-solids two-part epoxy. The installer should be able to name the manufacturer and the specific product, not say "industrial epoxy" or "professional formula." A bad answer dodges the chemistry name entirely.
4. Is the topcoat aliphatic polyaspartic, and is it UV-stable? Central Texas UV intensity is among the highest in the lower 48, and a west-facing garage door on a Travis County corner lot takes direct afternoon sun through every summer. The right answer is aliphatic polyaspartic with manufacturer-published UV stability data. The wrong answer is "epoxy clear coat" or no topcoat at all, which yellows visibly by the second August and softens enough for hot tire pickup soon after. The chemistry is detailed in our note on why epoxy garage floors yellow.
5. Is this a single-day install for a standard two-car bay? A properly specified polyaspartic system supports same-day installation when the prep is real. A bad answer is a multi-day install for a standard residential Austin garage, which usually means the topcoat is slow-cure epoxy rather than actual polyaspartic. The mechanics are in polyaspartic garage floor install time.
6. What is the cure schedule before walk-on and vehicle traffic? The honest number on a properly installed polyaspartic 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 that covers adhesion failure, peeling, and delamination under normal residential use. A bad answer is "lifetime warranty" with no documented terms. Lifetime marketing language 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 get epoxy or polyurea injection. Hairline shrinkage cracks get evaluated honestly. A bad answer is "we coat over it," which is exactly how a young Austin floor fails on a clay-edge lot in Mueller or out near Pflugerville. 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 Austin, 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 polished sales rep who hands you off to "the install team" you never 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 vague insurance language with no documentation, or a company name that does not appear in any installer directory.

What the right answers sound like together

A good Austin installer connects the answers. They will tell you that your Tarrytown slab sits on limestone-influenced subgrade so settlement cracking is minimal, but the UV-degraded surface laitance has to be ground deeper than on newer concrete, and the polyaspartic topcoat is what holds gloss through Central Texas summers. They will sound like someone who has walked Travis County concrete a hundred times, 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.

The specific Austin TX context to test for

The installer should know what makes Travis County concrete different from a generic Texas slab. Test for that with a few local follow-ups.

• Older central Austin slabs in Hyde Park, Rosedale, and Allandale often have decades of UV-degraded surface laitance that requires deeper grinding than newer concrete.
• East Austin and parts of north Austin sit on heavier clay-influenced subgrade, which produces seasonal movement cracking that needs honest scoping.
• Tech-corridor suburbs like Round Rock and Cedar Park have newer production-home slabs that may look pristine but still need full mechanical preparation, not an etch shortcut.
• West- and south-facing garage doors across Travis County see UV intensity that destroys aromatic clear coats within two summers.

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

Some installers in the Austin market bid low by quoting a thin water-based coating closer to a hardware-store kit than a professional system. If the number seems low and the chemistry is vague, ask the question covered in our breakdown of DIY epoxy garage floor kits. A low-mil water-based product on a Central Texas slab that absorbs radiant heat all summer will fail well inside two years.

Book a free on-site assessment in Austin TX

Use these ten questions on every installer you bring out. A verified Amazing Garage Floors crew member answers 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 Austin TX through the local hub and put these questions to a real crew.