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HiringGarage Floor Coating

Should I hire a pro for an epoxy garage floor?

Hire a pro if the floor is damp, sealed, cracked or has old paint that may hold lead, or if you want a thicker multi-layer system. Do it yourself only on a sound, bare, dry one-car floor in 60 to 85°F weather. For work of $1,000 or more, check the contractor's DPOR licence and get three written bids.

Free to ask. Local shops send quotes, and you pay only when you book one.

By Kasra Taheri, Founder, LoclisPublished

Researched and drafted with AI, then checked claim by claim against the sources listed below before it was published. Prices and rules change; the dates beside each source say when it was last checked.

Step by step

Read when to stop and call a pro, further down this page, before you start.

  1. Step 1: Test the slab

    Run the water-bead, tape and 24-hour plastic moisture tests.[1]

  2. Step 2: Decide kit or crew

    Choose a kit only for a sound, bare, dry, one-car-size floor in suitable weather.[1]

  3. Step 3: Look up the contractor

    For work of $1,000 or more, check the Virginia license on DPOR's lookup.[4]

  4. Step 4: Get three written bids

    Ask for at least three bids against identical specifications.[4]

  5. Step 5: Compare the specification

    Compare preparation method, product, coats, finish, cure time and warranty.

  6. Step 6: Sign a written contract

    Make sure the written contract lists the scope, price and warranty.[4]

  7. Step 7: Limit the deposit

    Pay no more than 10% or $1,000 up front, whichever is less.[4]

The short version

Hire a pro when the floor is damp, sealed, cracked or coated with old paint, when you want a thicker multi-layer system, or when you cannot do the whole job in a single day. Do it yourself when the slab is sound, bare and dry, and the garage is a single-car size that a kit is made for. The deciding factor is rarely the rolling. It is the preparation, and the time limit once the two parts are mixed.

Close-up of a green-gray epoxy floor with scattered tan and dark decorative flakes under a glossy clear coat
Photo: Acabashi, CC BY-SA 4.0, via Wikimedia Commons

When a kit is a reasonable choice

A garage floor kit is built for a plain job. One common water-based kit is meant for a covered garage only, not carports or areas exposed to direct sunlight, and covers approximately 250 square feet of smooth, bare concrete.[1] If your floor is bare and clean, passes the moisture test and you have a weekend with 60 to 85°F weather, the manufacturer's instructions are written for a homeowner. See how to epoxy a garage floor.

When to hire

The moisture test fails. Tape a 2 by 2 foot sheet of plastic to the floor for 24 hours. Water droplets on the underside or wet-looking concrete mean moisture is trapped and the floor should not be painted.[1] A contractor can look for the moisture source and propose a system made for it.

There is a sealer or old paint. If water beads on the floor, a sealer is present and paint may not adhere properly.[1] Old paint that fails the tape test, where more than 25% of the taped area lifts, must be removed with a concrete floor sander or a suitable stripper before coating.[1] That is dusty, heavy work, and professionals bring grinders with dust extraction.

Lead may be involved. The kit's sheet warns that scraping, sanding or removing old paint may release lead dust and that exposure can cause serious illness, especially in children.[1] If the floor or adjoining walls carry decades-old paint, use a contractor who works lead-safe.

The slab is damaged. Loose, chipping or dusty concrete means the coating will not perform until it is removed and damaged areas repaired.[1]

The job is bigger than one kit. The mixed coating has a limited pot life, between 1 and 2 hours depending on temperature, and must be applied within the times on the charts to keep the gloss and color even.[1] On a large floor, a crew of several people is how that is managed.

You want a thicker system. A one-coat kit has a recommended dry film thickness of 3.0 to 3.5 mils.[2] Multi-layer systems with chips and a clear topcoat are a trade product with their own preparation.

The weather is against you. The kit calls for air of 60 to 85°F and humidity below 80%, and the floor must be at least 55°F.[1] A contractor can schedule around that; check the data sheet of whatever they propose.

Hiring in Virginia

DPOR's guide says that if the work is valued at $1,000 or more, a valid Virginia contractor's license is required for the category in which the contractor is to work.[4] The Board's regulations define painting and wallcovering contracting as including surface preparation, caulking, sanding and cleaning preparatory to painting, so a painting-licensed business covers the prep as well as the coating.[5] Check the license on DPOR's license lookup before you sign, and confirm that the license class matches the contract amount.

Before signing:

  1. Get at least three written bids using identical plans and specifications so you can compare prices.[4]
  2. Ask each bidder to name the preparation method (grinding or etching), the product and its data sheet, the number of coats and the finish.
  3. Ask for the cure time before you can park on it, and for the warranty in writing, including what it excludes.
  4. Check that the written contract says what is covered. Virginia law requires all licensed contractors to provide a written contract for residential work.[4]
  5. Keep the deposit to no more than 10% of the total price or $1,000, whichever is less.[4]

For what drives the quote, read how much an epoxy garage floor costs in Virginia.

Questions to ask a bidder

  • How will you test for moisture, and what happens if the floor fails?
  • Do you grind the floor or etch it, and how do you control dust?
  • What is the product, and can I see its data sheet?
  • How long before I can walk on it and drive on it?
  • What does the warranty cover and what voids it?

Stop and call a pro if

  • The moisture test shows water. Do not coat over it.[1]
  • The floor is sealed or the old coating is peeling. It needs removal first, not a second coat over the top.[1]
  • You may be disturbing old paint. Lead dust is toxic, and children are most at risk.[1]
  • The garage is shared, attached to living space or hard to ventilate. EPA advises increasing ventilation when using products that emit VOCs.[3]
  • A bidder is not licensed. For work of $1,000 or more, check DPOR first.[4]

Next steps

Browse painting answers, see painting businesses near you, and when you are ready, describe your garage floor so licensed local businesses can quote it.

Common questions

Is an epoxy garage floor a good DIY project?
It can be, on a sound, bare, dry one-car floor in mild weather. The work is mostly preparation and moving quickly once the coating is mixed. A damp, sealed or damaged slab is a reason to hire.
Do I need a licensed contractor in Virginia?
For work valued at $1,000 or more, DPOR's guide says a valid Virginia contractor's license is required in the category in which the contractor works. Check the business on DPOR's license lookup.
What can go wrong if I do it myself?
Mostly peeling, from moisture, sealer, old paint or poor cleaning, and uneven color if the coating is not used within its pot life. The manufacturer says a floor that is not thoroughly cleaned and rinsed may not hold.
How many bids should I get?
DPOR's guide advises at least three written bids using identical plans and specifications, so the prices are comparable.
Should the pro grind or etch the floor?
Ask which they use and why. Kit instructions use a citric-acid etch; professionals often grind. Either way, the floor must end up clean, dry and free of dust.

Sources

  1. [1] Garage Floor Instruction Sheet (EpoxyShield water-based epoxy garage floor coating kit), Rust-Oleum Corporation. Checked October 27, 2026.
  2. [2] Technical Data ESH-41, EpoxyShield Water-Based Epoxy Garage Floor Coating (can kits), Rust-Oleum Corporation. Checked October 27, 2026.
  3. [3] Volatile Organic Compounds' Impact on Indoor Air Quality, U.S. Environmental Protection Agency. Checked October 27, 2026.
  4. [4] What You Should Know Before You Hire a Contractor, Virginia Board for Contractors, Department of Professional and Occupational Regulation. Checked October 27, 2026.
  5. [5] 18VAC50-22-30. Definitions of specialty services (Board for Contractors Regulations), Virginia Administrative Code, Virginia General Assembly. Checked October 27, 2026.

Want a pro to handle it?

Describe the job once. Licensed local businesses send quotes, and you pay only when you book one.