Repainting Concrete Flooring

Contact

✔ Step-by-Step Guide to Repainting a Concrete Floor

  1. 1

    Assess the Condition

    Before repainting, inspect the floor for peeling, flaking, stains, or deep cracks. Old, chipping paint needs to be removed entirely, while solid, intact paint can often be painted over with minimal prep. To test adhesion, apply duct tape to the painted surface and peel it off—if paint sticks to the tape, the coating is failing and must be stripped. Check for moisture issues by taping a plastic sheet to the floor for 24 hours; if condensation appears underneath, the concrete needs additional drying or a moisture-resistant primer. Assessing these factors ensures the new paint adheres properly and lasts longer.

  2. 2

    Clean & Prepare the Surface

    Thorough cleaning is crucial for proper adhesion. Start by sweeping and vacuuming to remove dust and debris. For grease or oil stains, use a degreaser or a mixture of dish soap and warm water. Scrub the area with a stiff-bristled brush, then rinse with clean water. If the concrete is particularly dirty, a pressure washer or etching solution can help remove deep stains. Avoid leaving standing water—let the floor dry completely before moving on. Skipping this step can result in paint peeling prematurely, so take the time to ensure a clean, dry surface before applying any coatings.

  3. 3

    Repair Cracks & Imperfections

    Small cracks and holes should be repaired before painting to ensure a smooth, even surface. Use a concrete patching compound or epoxy filler for hairline cracks, pressing it into the gap with a trowel. Larger cracks may require a self-leveling sealant to prevent further damage. Allow repairs to dry fully—this can take anywhere from a few hours to a full day depending on the product. Sand down any rough patches once dry to ensure seamless blending with the surrounding surface. Neglecting this step can lead to uneven paint application and future structural issues.

  4. 4

    Choose the Right Concrete Paint

    Selecting the right paint depends on durability, finish, and resistance to wear. Epoxy-based coatings provide a long-lasting, high-gloss finish that resists chemicals and heavy traffic—ideal for garages and workshops. Acrylic concrete paints are easier to apply and dry faster but may not last as long in high-use areas. Polyurethane coatings offer excellent resistance to abrasions and UV exposure, making them great for outdoor spaces. Consider the surface’s exposure to foot traffic, moisture, and sunlight when choosing the best paint type. A high-quality paint will provide better adhesion and last longer than standard options.

  5. 5

    Apply a Primer for Adhesion

    A concrete primer helps create a strong bond between the paint and the surface, preventing peeling and flaking. Choose a primer designed for concrete and apply it in a thin, even layer using a roller or brush. Allow the primer to dry completely, following the manufacturer’s instructions—this typically takes 4 to 24 hours. If painting over bare concrete, a masonry bonding primer is highly recommended. For areas prone to moisture, opt for a moisture-blocking primer to prevent issues like bubbling or blistering. Skipping this step may lead to uneven coverage and a shorter lifespan for the painted floor.

  6. 6

    Painting & Drying Process

    Apply the first coat of paint using a high-quality roller or sprayer for smooth, even coverage. Work in thin layers to prevent streaking or bubbling. Allow the first coat to dry according to the manufacturer’s guidelines—this can range from 6 to 12 hours. Apply a second coat if necessary for better opacity and durability. Ensure the room is well-ventilated during the drying process to allow fumes to dissipate and moisture to evaporate evenly. Rushing this step or walking on the surface too soon can cause imperfections, so allow proper drying time before moving forward.

  7. 7

    Sealing for Durability

    Sealing the painted surface extends its lifespan and protects it from moisture, stains, and abrasion. Choose a sealer that matches the paint type—water-based sealers work best with acrylic paints, while solvent-based sealers pair well with epoxy coatings. Apply the sealer in thin, even coats using a clean roller or sprayer. Allow at least 24 hours of drying time before using the space lightly and up to 7 days for full curing. A well-applied sealer ensures the floor remains vibrant and durable for years, reducing the need for frequent touch-ups or repainting.

Repainting Pros

  • Cost-effective – Much cheaper than replacing the entire floor.
  • Quick process – Can be completed in a weekend with the right prep.
  • Wide variety of colors and finishes to refresh the look.
  • Can be done as a DIY project, saving on labor costs.
  • Protects the existing concrete from stains, moisture, and wear.

Repainting Cons

  • Requires thorough prep – Poor prep leads to peeling and flaking.
  • Durability concerns – Paint may wear out faster in high-traffic areas.
  • Can show imperfections in the concrete if not properly smoothed.
  • May need frequent touch-ups in garages and industrial settings.
  • Less suitable for outdoor use where exposure to the elements is a factor.

New Flooring Pros

  • Long-term durability – New flooring options last years longer.
  • Can completely change the look and function of the space.
  • More resistant to wear, moisture, and high-impact use.
  • Better for commercial or high-traffic areas that need longevity.
  • More finishing options like polished concrete, overlays, or tiles.

New Flooring Cons

  • Higher cost – Installing new flooring is a bigger investment.
  • Longer installation time – Can take days or weeks depending on materials.
  • May require removing old paint or prepping the slab before installation.
  • Not always DIY-friendly – Some flooring types require professional installation.
  • Disruption – Work areas may be unusable during the installation process.
🔹 How long does concrete floor paint last?
The lifespan of concrete floor paint depends on traffic levels, paint type, and surface preparation. In residential settings, high-quality epoxy or polyurethane coatings can last 5-10 years, while standard acrylic paints may only last 1-3 years. In commercial or garage spaces with heavy use, expect to repaint every 2-5 years for the best durability.
🔹 Can I paint over old concrete paint?
Yes, but the old paint must be clean, intact, and properly prepped. If the existing paint is peeling or flaking, it should be removed or sanded down before applying a new coat. Using a primer ensures better adhesion and helps the new paint last longer.
🔹 What’s the best way to stop peeling?
Peeling happens due to poor surface prep, moisture issues, or applying paint too thickly. To prevent it, make sure the concrete is completely dry, clean off any dust or grease, and use a bonding primer before painting. Sealing the floor after painting adds an extra layer of protection.
🔹 Does concrete floor paint need a sealer?
Not all concrete floor paints require sealing, but using a clear topcoat extends durability and prevents wear. Epoxy and polyurethane paints are self-sealing, but acrylic or latex-based paints benefit from a polyurethane or acrylic sealer to protect against stains and scratches.
🔹 How long before I can walk or park on it?
Drying times depend on the type of paint. Acrylic-based paints dry within 24 hours, allowing for light foot traffic. Epoxy and polyurethane paints take 3-7 days before they can handle cars or heavy machinery. Always check manufacturer guidelines for full curing times.

Our team of experts is ready to transform your floors with precision and craftsmanship. Don't settle for ordinary when you can have exceptional. Contact us now for concrete floors in England and Wales by emailing us at info@britishconcretepolishing.co.uk or by filling in the form below and our team will get back to you shortly.