An epoxy floor is only as good as the contractor who installs it. The surface preparation, material selection, and application technique all require experience that separates a long-lasting floor from one that peels within a year. This guide covers the key criteria for evaluating contractors, warning signs to watch for, and questions you should ask before any work begins.
Key Factors When Evaluating Contractors
1. Licensing & Insurance
Verify that the contractor holds the appropriate state or local license for floor coatings. They should carry general liability insurance (at least $1 million) and workers’ compensation coverage. Ask for a certificate of insurance and confirm it is current. Contractors listed on Epoxy Flooring Hub display their licensing and insurance status on each profile.
2. Experience & Portfolio
Look for contractors with at least 3–5 years of dedicated epoxy flooring experience. General painters or handymen who “also do epoxy” often lack the surface-prep knowledge required for a lasting bond. Ask to see photos of completed projects similar to yours — garage floors, commercial kitchens, or industrial bays each require different skill sets.
3. Customer Reviews
Read reviews on Google, Yelp, and our metro pages for Houston, Dallas, Phoenix, Atlanta, and Miami. Pay attention to how the contractor responds to negative feedback — professionalism in handling complaints says a lot about how they will treat your project.
4. Surface Prep Process
This is the most important differentiator. Quality contractors use diamond grinding or shot-blasting to profile the concrete — not acid etching alone. Ask specifically what equipment they use and how they handle cracks, moisture, and existing coatings. If a contractor cannot clearly explain their prep process, move on.
5. Warranty
Reputable contractors stand behind their work with a written warranty — typically 5–10 years for residential and 3–5 years for commercial applications. Make sure the warranty covers adhesion failure, peeling, and hot-tire pickup. Get the warranty terms in writing before signing a contract.
6. Materials Used
Professional-grade 100% solids epoxy outperforms water-based or solvent-based products available at hardware stores. Ask your contractor what brand and formulation they use. Top brands include Penntek, Polyaspartic coatings by ArmorPoxy, and Dur-A-Flex. If a contractor cannot name their materials, it is a red flag. For a deeper comparison of coating types, read our epoxy vs polyaspartic guide.
Red Flags to Watch For
- Quoting without visiting the site in person for anything over 200 sq ft.
- Using acid etching as the primary surface-prep method.
- No written warranty or only a “verbal guarantee.”
- Requiring full payment upfront — standard terms are 10–30% deposit with the balance due upon completion.
- Unable to provide references or photos of recent completed projects.
- Pricing significantly below market rate — cheap bids usually mean cheap materials or skipped prep work.
Questions to Ask Before Hiring
- What surface-preparation method do you use? (Diamond grinding or shot blasting preferred.)
- What brand and type of epoxy or polyaspartic will you apply?
- How many coats are included in the quoted price?
- What does your warranty cover, and for how long?
- Can you provide three references from projects completed in the last six months?
- What is the expected timeline from start to walk-on readiness?
- How do you handle unexpected issues like moisture, cracks, or oil contamination?
- What is your payment schedule?
What to Expect During Installation
A typical residential garage takes 1–3 days depending on the coating system. Here is a rough timeline:
Day 1 — Preparation
Grinding or shot-blasting the concrete, filling cracks, and cleaning. This takes most of the first day.
Day 1–2 — Primer & Base Coat
The primer goes down first, followed by the pigmented base coat with optional flake or metallic pigments broadcast into it.
Day 2–3 — Top Coat & Cure
A clear polyaspartic or epoxy top coat seals and protects. Most floors are walk-on ready in 24 hours and vehicle-ready in 3–5 days.
Start Your Search
Finding the right contractor starts with comparing your local options. Browse our residential, commercial, and garage floor contractor directories to see verified listings with ratings, reviews, and contact information. Understand the costs involved by reading our epoxy flooring cost guide.