What questions should I ask a garage floor coating installer in Atlanta, GA before signing?

A garage floor inside the I-285 perimeter or out in the Cobb and Fulton suburbs sits on Georgia red clay with a plasticity index that frequently runs above 50. That number translates into expansive soil pressure that shifts under residential slabs every wet season and dry season. Pair that with humid subtropical summers that hold attached garages above 90 degrees Fahrenheit for months and a winter mild enough that crews work year-round, and the slab the installer is bidding is not a generic floor. The ten questions below are how you tell a verified Atlanta crew from a salesperson reading a national brochure, and what a bad answer to each one actually sounds like on a Georgia slab.

Why the bid conversation matters more in the Atlanta metro

A 1925 brick bungalow garage in Inman Park sits on a different ground story than a 2019 three-car attached garage in an Alpharetta subdivision. The Inman Park slab has nearly a century of clay movement worked into it, decades of oil from carbureted-era cars, and probably one or two failed sealers from previous owners. The Alpharetta slab is younger but sits on engineered fill that has not finished consolidating, with hairline settlement cracks already showing. The installer needs to read both kinds of floors on the walk-through and scope honestly. Find your Atlanta, GA crew through the local hub, and put the questions below to them 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) and explain how grit selection depends on what is on the slab now. A reddish clay-stained Grant Park slab with prior sealer takes a coarser progression than a clean Sandy Springs slab. A bad answer is "we acid-etch" or any version that skips mechanical prep. Etching on a clay-stained Atlanta slab gives the coating nothing reliable to bond into.
2. Are you doing a moisture test before product selection? Non-negotiable on Georgia red clay. The clay holds groundwater seasonally and pushes vapor up through any slab without a sound vapor barrier underneath. A calcium chloride test or relative humidity probe catches the issue before product orders happen. A bad answer is "humidity around here is fine, we just coat through it." That is the answer of someone who has not been called back to assess their own failures.
3. What basecoat chemistry, and does it tolerate seasonal clay movement? The standard for Atlanta residential should be a high-solids two-part epoxy with the elongation profile to ride seasonal wet-dry clay cycling. The installer should name the manufacturer and the specific product. Vague language like "professional-grade epoxy" without specifics is the answer of someone substituting cheaper material than the brochure shows.
4. Is the topcoat aliphatic polyaspartic, and is it UV-stable? The topcoat sits under direct south- and west-facing UV through humid summers that run from April into October. Aliphatic polyaspartic is UV-stable and chemically inert to the brake dust and tire residue that build up on every metro Atlanta floor. Aromatic chemistry yellows within a season. The wrong answer is "epoxy clear coat" or no topcoat at all.
5. Is this a single-day install for a standard two- or three-car bay? Polyaspartic chemistry supports same-day installation when the prep is done right, even on the larger bays common across Marietta and Alpharetta subdivisions. A multi-day install on a standard residential garage usually means slow-cure epoxy is being substituted for real polyaspartic.
6. What is the cure schedule before walk-on and vehicle traffic? Honest numbers on a properly installed system are walk-on the next day and vehicle traffic in roughly three days, even in Atlanta humidity. A week or more on the cure schedule points to wrong topcoat chemistry. The full install-time picture is in our note on polyaspartic garage floor install time.
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" without documented coverage, which is marketing language rather than a warranty. Our note on polyaspartic garage floor lifespan explains how the 15 year number maps to real performance.
8. How are you handling cracks on a clay-active slab? A serious Atlanta installer walks the floor and points to specific settlement cracks and shrinkage cracks before quoting. Structural cracks get epoxy or polyurea injection. Spalling at the door threshold gets cut out and filled with rapid-set repair mortar. A bad answer is "we coat over it," which is exactly how a young floor fails in the next dry summer. For the underlying mechanism see why epoxy garage floors peel.
9. Is the person walking my slab the one installing the coating? A verified Atlanta crew handles assessments and installs together. The right answer is yes, or "I work with the install lead daily and you will meet them on day one." A polished salesperson who hands you off to "the install team" you will not meet again is a different operating model and a different accountability picture.
10. Are you insured, and is the crew verified through the Amazing Garage Floors network? Verified means the crew has been trained on the product system, audited on installation quality, and stands behind the same warranty across the national footprint. A vague "yes we are insured" with no documentation, or a company name that does not appear in any installer directory, is a different conversation.

What the right answers sound like together

A good Atlanta installer will connect the answers rather than recite them. They will tell you that your Virginia-Highland slab needs a moisture test because the lot drops two feet from the back wall to the front, that the spalling at the door threshold has to be cut out and patched before the diamond grind, that the grind is going to take a coarser grit because there is residual oil-based sealer they need to remove, and that the polyaspartic topcoat is what lets them finish the job in a day and hand you a 15 year warranty. They 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. Walk away before signing.

The specific Atlanta context to test for

The installer should know what makes a metro Atlanta slab different from a generic suburban floor. Test for that with a few local follow-ups.

• Older slabs in Cabbagetown, Old Fourth Ward, and West End often have residual oil-based sealers, contamination from prior workshop use, and red-clay staining that has migrated into the surface paste. The installer should plan to grind through all of that before any coating goes down.
• Newer slabs in Dunwoody, Brookhaven, and Alpharetta typically sit on engineered fill with active clay underneath. Settlement cracks in the first five to ten years are common and need injection before coating.
• Three-car attached garages dominant in the perimeter suburbs have longer control-joint runs and more thermal-cycling stress at the joints than two-car bays. The installer should know how that changes the basecoat selection.
• South- and west-facing attached garages run hot through Atlanta summers. The topcoat selection has to address that thermal load, not just the chloride load other markets see in winter.

What to ask if the bid seems suspiciously low

Some installers in the Atlanta market bid low by quoting a thin water-based coating that is closer to a hardware-store 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 clay-active Georgia slab through humid 90-degree summers will fail inside two years no matter who applies it.

Book a free on-site assessment in Atlanta, GA

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. Schedule a free on-site assessment in Atlanta, GA through the local hub and put the questions above to a real crew before you sign anything.