How to buy an epoxy garage floor without getting ripped off
A garage floor coating is a $3,000–$6,000 decision in a market full of thin, DIY-grade jobs dressed up as professional work. Here's everything you need to choose the right finish, know a fair price, and hire a pro you can trust — with nothing to sell you.
1. Pick your finish
The four systems, honestly compared.
Solid epoxy
$3–7/ft²- Lasts
- 5–10 yrs
- Look
- Clean, high-gloss, one color. 100% solids epoxy.
- Best for
- Budget-conscious, indoor-only garages
- Spec
- 10–20 mils DFT · CSP 2
Flake blend
$3.50–8/ft²- Lasts
- 10–15 yrs
- Look
- Broadcast chips in clear binder. Hides dust, tire marks, and minor imperfections.
- Best for
- Most homeowners — the price/performance sweet spot
- Spec
- 20–40 mils DFT · CSP 2
Metallic
$4.50–10/ft²- Lasts
- 10–15 yrs
- Look
- Marbled metallic pigment + mica powder. Every floor is unique — no two are alike.
- Best for
- Showpiece garages, man caves, high-end homes
- Spec
- 15–25 mils DFT · CSP 2
Polyaspartic
$4–9/ft²- Lasts
- 15–20 yrs
- Look
- UV-stable, fast-cure. Won't yellow in sunlight. 1-day install possible.
- Best for
- Hot climates, outdoor exposures, busy households
- Spec
- 15–25 mils DFT · CSP 2–3
2. Know a fair price
What actually drives the cost — so you can't be upsold.
- Floor prep — proper diamond grinding costs more than acid etching, but it's the difference between a floor that lasts 15 years and one that peels in 1. Worth every dollar.
- Square footage — bigger garage, lower price per sq ft. A 2-car (~450 ft²) is the baseline.
- Finish — metallic and polyaspartic cost 25–40% more than solid epoxy.
- Repairs — cracks, pitting, and oil stains add prep work. A good quote itemizes this; a bad one surprises you later.
3. Spot a bad contractor
Five red flags that separate a real pro from a peel-in-a-year job.
Acid etching opens zero concrete pores for mechanical adhesion. A real pro diamond-grinds to CSP 2 (ICRI standard). Etch-only means the coating has nothing to grab — it'll delaminate within a year.
Cheap quotes usually mean water-based epoxy (not 100% solids), no primer, no topcoat — effectively a floor paint, not a coating system. 10 mils DFT or less when you need 20+.
A confident installer names the coating system — brand, product line, mil thickness — and backs it in writing. 'Lifetime warranty' with no product name is meaningless.
They should tell you: primer type, body coat product, topcoat chemistry, and total DFT. If they say 'it's epoxy' and can't name what's in the bucket, they may be using box-store kits.
If they damage your home or vanish, you have no recourse. Always verify licensing and insurance — and ask for a COI (certificate of insurance) with your name on it.
4. Ask these before you hire
Copy this list. A good contractor answers all seven without flinching.
- 1How do you prep the concrete — diamond grinding to what CSP level? (Answer should be CSP 2 minimum.)
- 2What exact coating system do you use — primer, body coat, and topcoat? Brand and product line?
- 3What's the total DFT (dry film thickness) of the finished system? (Should be 15+ mils for residential.)
- 4How long is the warranty, what does it cover, and is it in writing?
- 5Can I see photos of your last 3 jobs in my area — not your portfolio, actual recent work?
- 6Are you licensed and insured — can you send me a COI with my name on it?
- 7Is the quote all-in, or are crack repair, moisture mitigation, and prep billed separately?
Ready to price it out?
You know what you're buying now. See a fair price, then compare honestly-ranked local pros.
Estimate my floor →