What questions should I ask a garage floor coating installer in Overland Park before signing?

Most Overland Park homeowners getting bids on a garage floor coating have never bought one before. The product looks similar from one bid to the next, the warranty cards look similar, and the photographs on the websites look identical because half the installers in Johnson County use stock photos. The way you separate a serious local installer from a sales operation that subcontracts out the actual work is by asking ten specific questions during the assessment and listening carefully to what comes back. The corporate-professional standard most Overland Park property owners apply to every contractor coming through the door applies here too. Here is what to ask and what the answers should sound like.

The 10 Questions and What Bad Answers Sound Like

This is the full list. The order matters because each question builds on the answers to the ones before it. Print this section, take it with you to the assessment, and write down the responses.

1. What diamond grind grit are you using on my slab, and how many passes? A serious installer for a Nottingham Forest or Indian Hills slab from the 1970s knows the answer cold: typically a 30 or 40 grit metal bond for the cut, stepped up to 80 or 120 for finish, multiple passes. If you hear "we acid etch" or "we pressure wash and apply primer," the prep is not adequate for forty years of Johnson County clay cycling.
2. How will you moisture test my slab before the basecoat goes down? The right answer is a calcium chloride test or a relative humidity probe with documented results. The wrong answer is "we have not had issues" or "the product handles moisture." Overland Park slabs vary, and the test is the only honest way to know what is happening below the surface.
3. What is the basecoat chemistry, and is it a high-solids two-part epoxy? The answer should name the product, the percent solids, and confirm it is a two-part system mixed on site. A vague "industrial epoxy" answer is a red flag.
4. Is the topcoat a polyaspartic, and is it UV-stable aliphatic chemistry? The two words you want to hear are polyaspartic and aliphatic. Aromatic chemistry yellows under the south and west-facing sun that hits half the garage doors in Overland Park every afternoon. If the installer cannot confirm the chemistry, the topcoat is probably aromatic.
5. Will my install actually be completed in a single day? A real residential install for a standard two or three-car attached garage in Nottingham Forest or Lionsgate finishes in one working day from arrival through final topcoat. If the installer wants three days, the chemistry is probably standard epoxy with a long cure window.
6. What is the cure schedule before I can walk on it and before I can park on it? Walk-ready the next morning, vehicle-ready in approximately 72 hours is the polyaspartic-system answer. If the answer is one to two weeks before vehicle traffic, the topcoat is not polyaspartic.
7. What are the actual terms of the warranty, and what is excluded? The Amazing Garage Floors Limited 15 Year Warranty covers adhesion failure, peeling, and delamination attributable to materials or installation. Read what is excluded. Warranties that exclude hot tire pickup, UV yellowing, or freeze-thaw damage are warranties on chemistry that fails to those mechanisms.
8. How will you repair the existing cracks in my slab? An older slab in Indian Hills or Marlborough Heights will have crack patterns from decades of Johnson County clay cycling. The right answer names structural epoxy injection for hairline cracks, polyurea for cracks with continued movement, and structural patching compound for spalled areas. "We will fill them with crack filler" is not a structural answer.
9. Who is actually installing the floor, your in-house crew or a sub? A serious local installer has a verified crew that does the work directly. The salesperson who comes to the assessment should be able to tell you who the lead installer will be on the day of the job. If the answer is hedged or the installer is a different company than the one bidding, accountability becomes harder if a problem develops.
10. Are you insured, and are your installers verified through the brand network? General liability insurance and workers' compensation should be in force, and the installer should be able to produce a certificate on request. Verified installer status through the national brand confirms that the crew has completed the training protocol and works to the documented specification.

How the Answers Map to an Overland Park Slab

The reason these questions matter in Overland Park specifically is that the local concrete reality punishes shortcuts in ways that show up in two to three years. Johnson County's expansive clay subsoil cycles seasonally underneath every garage in the city. The 30 or more freeze-thaw events per winter work on any moisture in the slab. Road salt deposited from every February drive on US-69, I-435, 119th Street, or 135th Street penetrates uncoated concrete and attacks the cement paste binder. A coating system installed without the prep and chemistry that address those conditions is not a long-term floor, regardless of how it looks the week the installer leaves.

The 1970s and 1980s slabs in established subdivisions like Nottingham Forest, Quivira Falls, and Marlborough Heights have been through four or five decades of that cycling. The crack patterns are typically more developed, the surface laitance is more weathered, and the prep scope is larger. Newer engineered-fill slabs in Mission Farms or Lionsgate are more uniform, but they still need diamond-grind prep and crack repair because the seasonal clay cycling continues regardless of fill engineering. The questions above are how you confirm the installer understands which scope applies to your specific slab.

What to Watch For During the Assessment Itself

The assessment is the audition. How a verified installer walks your garage tells you almost as much as the question-and-answer session.

• Does the crew member actually walk the full slab, looking at crack patterns, the door threshold, the control joints, and any moisture indicators? Or do they spend ninety seconds inside and most of the visit at the kitchen table closing?
• Do they bring physical sample boards into your actual garage to evaluate color blends in your actual lighting? Or are they showing you a glossy catalog with stock photography?
• Do they identify specific prep work needed on your slab and explain why? Or do they say everything looks fine and quote a single round number?
• Do they answer technical questions about chemistry and warranty specifics, or do they redirect to selling pressure and a today-only urgency tactic?

The Bid Comparison Step

If you have three bids in hand and they look similar on the number, the technical specification is where the actual difference lives. Two installers can quote the same number and deliver wildly different floors because the product systems are not the same, the prep scopes are not the same, and the warranty terms are not the same. A floor that ships at a lower square-foot scope but uses an aromatic topcoat is a floor that yellows in the first summer of UV exposure. A floor that skips the moisture test is a floor that develops bubbling and peeling as soon as the first wet spring drives vapor pressure through an unprotected slab.

The honest way to compare bids is to lay the ten answers side by side. The installer who answers all ten directly with specifics is the installer who is going to deliver a floor that holds through Johnson County's full annual cycle. The installer who hedges, deflects, or gives marketing answers is the installer whose work shows up in our assessment queue three years later as a failed coating that needs to come up before the new one goes down. For more depth on what an honest scope conversation covers, the broader guide to what goes into a garage floor coating project walks through the seven variables that actually determine the work.

Schedule a Free Assessment to Apply These Questions

The right way to use this list is to bring it to the assessment with an installer who will sit through the questions and answer them directly. Schedule a free on-site assessment with the verified local Amazing Garage Floors crew in Overland Park, KS and apply the list in person. Whether your home is a 1970s ranch in Nottingham Forest, a corporate-corridor property near Corporate Woods, or an estate-grade build in Mission Farms or Lionsgate, the assessment is the right starting point and the answers to these ten questions will tell you whether the installer in front of you should be the one signing your project.