How Much Does It Cost to Epoxy a Garage Floor? (Price Guide)

An epoxy coating turns a bare, dusty concrete garage floor into a smooth, sealed surface that resists oil stains and wipes clean. The price is set by the square footage, the type of coating, and how much prep the slab needs before any epoxy goes down.

Figures below come from published guides, checked as of Oct 11, 2026. Most are quoted per square foot, so the first step is to measure your garage.

This Old House puts professional installation at $3 – $12/sq ft for materials and labor. A basic DIY epoxy job runs $2 – $5/sq ft. A metallic epoxy floor, with its swirled, glossy look, runs $5 – $12/sq ft. If you are pricing labor separately, This Old House lists $1 – $7/sq ft on top of materials. For a coating applied to an existing slab, This Old House's garage floor replacement guide gives about $4.05/sq ft.

The ranges overlap because the products differ. A thin, water-based coat is a different job from a thick, solid epoxy system with decorative flakes and a clear topcoat.

Garages are measured in car bays. This Old House gives DIY costs for three sizes.

A one-car garage of 240 square feet costs $480 – $1,200. A two-car garage of 360 square feet costs $720 – $1,800, and a three-car garage of 560 square feet costs $1,120 – $2,800. For a professional job, multiply your garage area by the professional per square foot rate. Your own garage may be larger or smaller than these sizes, and a workshop corner or storage nook adds area.

Epoxy comes in two main types. Water-based epoxy is thinner and easier for a beginner to roll. Solid epoxy is thicker, and it can create a heavier coat.

Water-based epoxy is listed at $30 – $50/gal, and solid epoxy at $45 – $150/gal. The price per gallon is only part of the story, because a thicker product covers a different amount of floor per gallon. Read the coverage rate on the label before you compare products.

Retail kits bundle the epoxy, decorative flakes, and a topcoat. One example is the ArmorGarage Armor Chip kit.

ArmorGarage lists its kit at $389 for a one-car garage and $1,098 for a three-car garage. This is a manufacturer's price for its own product, so use it as a data point and not as an average. Kits generally don't include a grinder, which most professionals use for prep.

• Garage size. The more floor area, the more material and time.
• Coating type. Water-based, solid, and metallic systems are priced differently.
• Concrete condition. Cracks, pits, and old stains need to be repaired or ground out first.
• Surface prep. Diamond grinding is the usual professional method and gives the coating something to bond to.
• Finish. Flakes, metallic pigments, and a clear topcoat add materials and steps.
• Moisture. Concrete that passes moisture upward can cause bubbling, so a moisture test or barrier may be needed.
• Existing coatings. Old paint or sealer has to come off before epoxy goes down.
• Labor rates. Pricing varies by region and by contractor.

The differences come from what the quote includes. A rate that covers only a thin DIY coat will be far below one that covers grinding, crack repair, a base coat, flakes, and a topcoat.

Here the figures come from one source, so the range is its own spread. Quotes from local installers will narrow it for your garage.

DIY saves the labor cost, and the main expense becomes the kit or the materials. The trade-off is that prep makes or breaks an epoxy floor. If the concrete is not clean, dry, and profiled, the coating can peel, and hot tires are a common cause of lifting. Professionals bring grinders, commercial-grade products, and experience reading the slab. They also give you a warranty, which a home kit cannot do. Some jobs carry fumes, so ventilation matters, and you should read the product's safety instructions whichever route you take.

An epoxy floor is easier to clean and looks better than raw concrete. It can show scratches, and a smooth finish can be slippery when wet unless anti-slip additives are included. If the slab is badly cracked or heaved, repair or replacement may need to come before any coating. Ask any installer about the product's wear resistance and the length of the warranty.

• Does the price include grinding, crack repair, and cleanup?
• How many coats are applied, and is there a clear topcoat?
• Is the product epoxy, polyaspartic, or a hybrid?
• How long before I can walk on the floor and park on it?
• What does the warranty cover, and what voids it?