Comparing Garage Floor Coating Quotes? 7 Questions That Show You What You're Really Paying For
You got three quotes for the same two-car garage, and they're thousands of dollars apart. That doesn't mean somebody is trying to rip you off. Usually it means the three companies are planning three very different jobs. The price on the page only makes sense once you know what's behind it.
Here are the seven questions that tell you what each quote actually includes. Ask them of every company you talk to, including us. If you want the price ranges first, start with our garage floor coating cost guide. This post is about what to do once the quotes are in your hand.
1. "How will you prepare my concrete?"
This is the most important question, and the answers vary the most.
A coating is only as good as its grip on the slab. Professional prep means grinding the entire floor with diamond tooling. That opens up the surface so the coating can bond into the concrete, not just sit on top of it. Cost guides put diamond grinding at roughly $1 to $3 per square foot on its own, which is why it's the first thing cut from a low bid. Cheaper approaches include acid etching or "a thorough cleaning." They cost less because they do less.
What a good answer sounds like: "We diamond-grind the whole floor, edges included, then vacuum it clean." What should make you pause: "We etch it," "We pressure-wash it," or "It depends" with no follow-up. We explain why prep decides whether a floor lasts in why garage floor coatings peel.
2. "What exactly is going down, and how many coats?"
"Polyurea" and "polyaspartic" are material families, not a single product. Two quotes can use the same word and describe very different systems.
Ask each company to write down:
- The product and manufacturer. A reputable installer will name it and share the technical data sheet if you ask.
- Whether it's 100% solids. Solids are what's left on your floor after the coating cures. Water-based and solvent-based products lose part of their thickness as they dry.
- The layers. A typical full system is a base coat, a decorative flake broadcast, and a clear topcoat. Some quotes skip the flake or use a partial broadcast, which changes both the look and the texture.
- Whether the topcoat is UV-stable. This matters if your garage door is open on sunny afternoons.
When one quote lists three layers from a named manufacturer and another just says "floor coating," you're not comparing the same job.
3. "What happens to my cracks, pits, and stains?"
Almost every Downriver garage floor has something going on: hairline cracks, pitting in the tire paths from years of road salt, oil spots under the car. A quote that doesn't mention repair either assumes your floor is perfect or plans to coat right over the damage.
Ask how cracks will be filled and whether pits and spalled areas are included in the price or billed as an extra. Also ask whether control joints (the straight grooves cut into the slab) will be filled or re-cut. On our Southgate project, re-cutting the joints was part of getting that floor right. For more on what salt does to a slab, see what road salt is doing to your garage floor.
4. "Will you check the concrete for moisture?"
Concrete moves water vapor, especially in older slabs and in floors that sit below grade. Coat a slab that's pushing too much moisture and the coating can lose its bond from underneath.
You don't need a lab report for a typical attached garage. You do want an installer who looks for the warning signs (white crusty deposits, dark damp patches, a musty smell) and explains what they'd do if they found a problem. If you're also thinking about the basement, this question matters twice as much.
5. "What does the warranty cover, and who stands behind it?"
Warranties are where quotes look the most alike and are actually the most different. "Lifetime warranty" can mean almost anything. Homeowners on forums ask a fair question: how many of these companies will still be around in 20 years to honor it?
Ask three things:
- What exactly is covered? Peeling, chipping, delaminating, fading and staining are different claims. Get the list in writing.
- Who backs it, the installer or the manufacturer? An installer-only warranty depends on that business staying open. A manufacturer warranty is backed by the company that makes the product.
- Does it transfer if you sell the house? A transferable warranty is something you can put in the listing.
Our floors carry a 15-year manufacturer warranty against chipping, peeling and delaminating, plus a lifetime warranty against UV fading, and it transfers to future owners. Whoever you hire, get the warranty terms in writing before you sign.
6. "Who will actually be in my garage?"
Some companies sell the job and send a subcontractor. Others send the same crew every time. Neither is automatically bad, but you should know which you're getting.
Ask whether the installers are trained or certified by the product manufacturer, whether the company carries liability insurance, and who you call if something goes wrong in year three. At Fortified, the person who walks your floor for the estimate is Joe, the owner and lead installer.
7. "When can I use my garage again?"
Fast-curing coatings are one of the big advantages of polyurea and polyaspartic systems. Still, "fast" should never mean rushed. Ask for real numbers. When can you walk on it? When can you park? What should you avoid for the first week?
Our guidance: stay off the floor for about 24 hours, then wait 48 hours before driving on it. A company that promises you can park the same afternoon is either using a different product or skipping steps. Ask which.
How to line up quotes side by side
Once you have answers, put them in a simple table: prep method, product and manufacturer, number of layers, flake coverage, repairs included, moisture check, warranty terms, and who installs. The cheapest quote often has blanks in several rows. The most expensive one should be able to explain every line.
A few more things worth a look:
- Reviews that mention time. A review written the week after install tells you about the crew. A review written two winters later tells you about the floor. See what our customers say on our reviews page.
- Photos of finished floors. Look closely at edges, drains and door thresholds. That's where rushed prep shows first.
- Whether they pushed you to sign today. A good installer is happy to let you think it over.
The bottom line
Two garage floors that look the same size can be hours apart in prep work, so the lowest number isn't always the best deal and the highest isn't always the safest bet. The best quote is the one that answers all seven questions clearly and puts the answers in writing.
If you're in Flat Rock, Downriver, or anywhere in our service area, book a free in-home estimate. Joe will walk your floor, answer every question on this list, and give you a straightforward quote. Bring your other quotes along if you'd like. We're happy to explain the differences.