Patio & Deck Sealing in St. Thomas, Ontario by All-Seal Concrete Sealing

St. Thomas · Elgin County

Patio & Deck Sealing in St. Thomas

Backyard living in St. Thomas runs from spring cookouts through humid summer evenings, and a sealed patio holds up far better through all of it. All-Seal's patio sealing in St. Thomas protects against staining, moisture and the freeze-thaw cracking that Southwestern Ontario winters bring, while keeping the surface comfortable underfoot. If your patio in St. Thomas has steps, sits near a pool or just sees a lot of bare feet through the summer, we can talk through anti-slip options during your free inspection in St. Thomas.

Recommended finish

Semi-Gloss

Semi-Gloss gives a patio a warm, satin look well suited to outdoor entertaining while still fully protecting against staining and moisture.

St. Thomas's elevation and proximity to the Lake Erie shoreline mean concrete here experiences more humid, muggy stretches in July and August than towns further inland, which affects how long a sealer takes to cure properly before rain.

What's included

Patio & Deck Sealing done properly in St. Thomas

Your patio hosts summer dinners, bare feet, spilled drinks and every backyard gathering in between. All-Seal seals your patio or concrete deck to resist staining and moisture while keeping the surface comfortable and safe underfoot.

  1. 1

    On-site inspection

    We look at your patio's surface, drainage, existing cracks and any prior coating before quoting, so the plan matches your actual concrete.

  2. 2

    Pressure washing

    We pressure wash the full patio to remove algae, mildew, grease and dirt buildup that would otherwise sit under the new sealer.

  3. 3

    Crack and joint repair

    Any cracked or open joints are cleaned and filled so water and organic growth cannot keep working their way in.

  4. 4

    Full drying period

    The patio is left to dry completely, since sealing over damp concrete traps moisture underneath instead of keeping it out.

  5. 5

    Sealer application

    We apply your chosen sealer evenly across the full patio surface, including edges and steps, for consistent coverage and finish.

  6. 6

    Anti-slip check

    If you have selected an anti-slip additive for dining areas, steps or a pool-adjacent patio, we confirm the texture is right before wrapping up.

  • Resists food, drink and grease staining
  • Preserves the concrete's original colour
  • Comfortable and safe for bare feet
  • Anti-slip additive available around dining and pool-adjacent areas
  • Protects against freeze-thaw cracking
  • 2-5 years of protection per application
Brick-red stamped concrete patio restored with a gloss sealer in London, Ontario
Wide view of a sealed stamped concrete patio with a wet-look finish in London, Ontario
Stamped concrete patio with steps and landscape boulders
Sealed stamped concrete patio at sunset behind a brick home in Southwestern Ontario

Neighbourhoods

LynhurstMitchell HepburnSouthgateDalewoodPort StanleyBelmontAylmer
Full patio & deck sealing guide

Free quote

Patio & Deck Sealing in St. Thomas, quoted free.

Send the surface, a rough size and a photo if you have one. We inspect for free, recommend a sheen and send a written quote. No deposit to get a number.

  • 519-266-6796
  • Mon – Fri · 7 AM – 6 PM | Sat · 8 AM – 2 PM
  • Woodstock · St. Thomas · Brantford · Hamilton · Kitchener-Waterloo · Cambridge
  • Free quotes and inspections
  • Anti-slip additives available
  • Works on previously sealed surfaces
  • Extends concrete lifespan 2–5 years
  • Premium products only
  • 10+ years experience

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FAQ

Patio & Deck Sealing in St. Thomas

Anything else? Call or use the quote form and we will answer within one business day.

Call 519-266-6796
What does patio & deck sealing cost in St. Thomas?

Every quote is per property, based on square footage, the type of concrete and whether it was sealed before. The inspection in St. Thomas is free and the written quote includes the recommended sheen.

Will sealing make my patio slippery when wet?

No. A properly applied sealer does not make concrete slippery on its own, and we offer an anti-slip additive for patios near pools, steps or areas with regular bare-foot traffic if extra grip is wanted.

Can you seal a stained or coloured concrete patio?

Yes. We regularly seal acid-stained, integrally coloured and broom-finished patios, using sealers chosen to protect and enhance the existing colour rather than alter it.

How long does patio sealing protection last?

Most patios hold their seal for 2 to 5 years, depending on sun exposure, foot traffic and how sheltered the space is. We will give you a realistic estimate based on your specific patio.

Do you charge extra to come to St. Thomas?

No. St. Thomas is inside our regular service area and inspections there are free.

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Wet-look gloss sealer on a stamped concrete driveway in Woodstock, Ontario

Protect. Preserve. Seal.

Patio & Deck Sealing in St. Thomas, done right.

Free inspection, written quote, your choice of finish. Spring and fall fill fast across Southwestern Ontario.

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