Floor painting: what to know

What the job involves, what changes the price, and what to ask a pro.

What floor painting is

Floor painting cleans and etches a concrete or wood floor, repairs cracks, then applies a floor-grade primer and paint or coating. People need it for garages, basements, porches and utility rooms where the bare floor dusts, stains or wears through under foot traffic.

Signs you need it

  • The concrete dusts when you sweep, and the surface rubs off onto shoes and tires
  • Oil, grease or chemical stains have soaked into the concrete and will not clean up
  • The wood floor in a porch or basement shows worn paint, bare boards or dark wear paths
  • Hairline cracks and small chips are spreading across the floor and catching dirt
  • You want a clean, easy-to-wipe floor for a workshop, laundry room or entry that gets wet

What the pro does

  • Inspect the floor for cracks, moisture, spalling and old coatings, and test for moisture before choosing the system
  • Clean the surface with a degreaser, then grind or etch the concrete to open the pores for bonding
  • Fill cracks and chips with a patching compound, and feather the edges so the repair does not show
  • Vacuum the dust and wipe the floor, then apply the floor-grade primer and let it cure
  • Roll the floor paint or coating in thin coats, keeping a wet edge and following the product's recoat window
  • Apply the final coat if the system calls for it, then keep the floor closed to traffic until it is cured

What changes the price

Every job is different, so we do not publish prices. These are the things that move the quote up or down.

  • Floor square footage and the number of rooms or zones with different substrates
  • The condition of the concrete or wood, including cracks, moisture and old coatings to remove
  • Whether the floor is concrete or wood, since each needs its own primer and paint system
  • The paint or coating type chosen, from a basic floor paint to a multi-coat system
  • Any moisture control, such as a vapor barrier or a sealer, needed before coating
  • Access, furniture removal and whether the floor has a drain, trench or uneven slope

What a written quote should spell out

  • Surface prep steps named, including degreasing, grinding or etching and the crack repair
  • Primer and paint or coating product, with the number of coats and the recoat interval
  • Square footage and the zones covered, with any stairs, drains or thresholds listed
  • Moisture test or moisture control steps included, and any vapor barrier used
  • Cure time and the date the floor can take foot traffic and vehicles

Questions to ask before you hire

  • Did you test the concrete for moisture, and what happens if it fails?
  • How do you prep the concrete so the coating does not peel?
  • What product do you use, and how well does it resist oil, salt and tire wear?
  • How long before the floor can take a car, and how long before foot traffic?
  • How do you handle a crack that comes back after the coating goes on?
  • Can you show me a floor you coated with a similar slab and use?

Red flags

  • The pro does not clean or grind the concrete and says the paint will bond on its own
  • The pro paints over a damp slab with no moisture test or moisture control plan
  • The pro says the floor will be ready for a car the same day it is coated
  • The pro uses a wall paint on a floor that needs a floor-grade system

What you can do yourself

Sweeping, degreasing with a product made for concrete, and painting a small porch or a utility floor with a floor-grade paint are reasonable homeowner tasks. Grinding concrete and any large crack repair or moisture work should be handled by a professional, and the room should be ventilated when solvent-based products are used.

Licenses and permits

Floor painting and coating commonly do not need a license, but structural crack repair, slab work and moisture barriers can require a permit or qualified contractors. Check with your state or local licensing agency and your local building department before you start.

Floor painting questions

Can I paint a basement floor?

Yes, if the moisture is controlled. Test the slab first, since water coming up through concrete will lift a coating. Ask the pro to test the slab and to name the moisture control method in the quote.

How long does a painted concrete floor last?

It depends on the coating system, the traffic and whether the moisture is controlled. Ask the pro for the expected life of the system and the recoat interval, and what care keeps it in good shape.

Is a painted wood floor different from a painted concrete floor?

Yes. Wood needs a primer that bonds to the wood and flexes with it, and it needs the old finish removed or sanded. Ask the pro how they prepare the wood and which primer they use.

About this guide

This national guide is written and checked by infinibell. Rules and conditions differ by place, so local pros are credited on guides for the cities they serve, not on national ones.

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