How to repair a pool deck

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Introduction

Cracks, chips, and stains on your pool deck don’t just look bad—they can become serious safety hazards. Whether you’re dealing with surface cracks, loose pavers, or peeling paint, this guide will teach you how to repair a pool deck the right way. From concrete to stone to composite finishes, we’ll walk you through everything you need to get your pool area looking brand new.

Why Pool Deck Repair Matters

Your pool deck is exposed to sun, water, foot traffic, and chemicals—a combination that leads to wear and tear over time. Small issues like cracks or surface flaking can quickly grow into larger problems if left unaddressed.

Repairing your pool deck:

  • Prevents slips and injuries
  • Stops water from penetrating and weakening the surface
  • Improves aesthetic appeal and resale value
  • Extends the life of your deck and pool area

By catching and fixing issues early, you’ll avoid costly full replacements down the line.

Step-by-Step Guide to Repairing a Pool Deck

Step 1: Inspect and Identify the Damage

Walk around your entire pool deck and look for:

  • Hairline cracks
  • Wide or deep cracks
  • Surface flaking (spalling)
  • Sunken areas or lifted pavers
  • Loose or broken tiles/stones
  • Chipped edges or peeling paint

Tip: Use chalk to mark all problem areas so nothing gets missed during repair.

Step 2: Clean the Entire Deck

Before you can repair anything, you need a clean surface.

  • Sweep away dirt, leaves, and debris
  • Use a pressure washer to remove stains, algae, and surface buildup
  • Let the deck dry completely before beginning repairs

Caution: Avoid using harsh chemicals if your deck is painted or stained—stick to mild soap and water or pool-safe cleaners.

Step 3: Repair Cracks in Concrete Decks

For hairline cracks:

  • Use a liquid concrete crack filler
  • Squeeze it into the crack and smooth with a putty knife
  • Let dry for 24 hours

For larger cracks (over ¼ inch):

  • Use a concrete patching compound
  • Chisel out loose edges and clean the crack
  • Apply patch with a trowel and feather the edges

Tip: For a smoother look, sand the patched area after it dries.

Step 4: Fix Loose or Sunken Pavers

If your deck uses interlocking pavers:

  • Remove the affected pavers
  • Refill the area with paver sand or crushed stone
  • Compact the base and reset the pavers flush with the rest of the deck
  • Tap them in place with a rubber mallet

Finish by sweeping sand between the joints and rinsing lightly with water.

Step 5: Patch Spalling or Surface Flaking

Concrete surfaces exposed to freeze-thaw cycles or pool chemicals often flake or “spall.”

  • Remove loose material with a wire brush
  • Apply a resurfacing compound using a trowel or concrete broom
  • Smooth and level the surface evenly
  • Allow to cure fully before walking on it (usually 24–48 hours)

Optional: Add a textured coating or non-slip finish for safety.

Step 6: Repaint or Re-Stain the Surface (If Needed)

If your pool deck is painted or stained and showing signs of fading or peeling:

  • Scrape and sand peeling areas
  • Clean thoroughly
  • Apply a pool-safe deck paint or stain
  • Use a roller or sprayer for even coverage

Tip: Use a light color to reflect heat and keep the surface cooler underfoot.

Step 7: Seal the Deck

Once repairs are complete, applying a concrete or stone sealer will protect your work and extend the life of the deck.

  • Choose a UV-resistant and waterproof sealer
  • Apply with a roller or sprayer in thin, even coats
  • Let dry completely (usually 24 hours)

Repeat sealing every 2–3 years depending on climate and foot traffic.

Common Mistakes to Avoid

1. Ignoring Small Cracks
Hairline cracks can widen and allow water damage.

Solution: Repair early to prevent bigger issues.

2. Using the Wrong Repair Materials
Not all patching products are rated for pool deck use.

Solution: Use pool-specific or exterior-grade products.

3. Skipping Cleaning Before Repair
Repairs won’t bond well to dirty surfaces.

Solution: Always clean and dry the surface before patching.

4. Repainting Without Primer or Prep
Paint will peel quickly if the surface isn’t prepped.

Solution: Sand, prime, and follow paint manufacturer directions.

5. Not Allowing Enough Dry Time
Walking on wet repairs can ruin your work.

Solution: Always let patched or painted areas cure completely before using.

Extra Tips & Pool Hacks

  • Use colored concrete patch to better blend with existing deck tones
  • Add anti-slip grit to sealers or paint to make your pool deck safer
  • If repairs are frequent, consider resurfacing your entire deck for a uniform finish
  • For long-lasting results, install expansion joints to reduce cracking from heat and movement

Related Article: Want to improve safety too? Read [How to Install Anti-Slip Surfaces Around Your Pool] to make your deck safer for everyone.

Conclusion

Repairing your pool deck is a manageable DIY task that makes a big impact. With the right materials and preparation, you can restore your deck’s appearance, improve safety, and prevent further damage. Regular maintenance and sealing will keep your pool area looking great for years to come.

Final tip: Don’t wait until damage becomes severe—small, timely fixes save you money and preserve your pool’s beauty and function.