Deck Sealing and Cleaning

The better you are at stopping dirt, dust and mold from accumulating your deck in the first place, the less you will have to spend on repairing or replacing the wood in the long run!

Exceptional Deck Sealing & Cleaning for Chapel Hill, NC Homes

Greg Tilley’s Pressure Cleaning offers the sealing and power washing necessary to preserve your deck from all major sources of damage. With our help, you’ll never have to worry about restoring a compromised exterior!

Sealant is your deck’s first line of defense against all major sources of damage. A quality sealant will keep out a wide variety of threats, including:

Pressure washing brick house siding to remove dirt and grime.

Dirt

Not only does dirt affect the appearance of your deck, but it can also compromise its structure. As soil particles become ingrained in the wood, they begin to grind into it, wearing down the surface and requiring you to replace the boards frequently. Sealant leaves no space for dirt to get into the deck.

Water-damaged siding after pressure washing, restored to a clean appearance.

Water

Whether from rain or from moisture in the air, water damages your deck both directly and indirectly. Directly, it causes parts of the wood to expand and break off from the rest; indirectly, it nourishes mold, insects, bacteria and other sources of decay. Sealant makes the surface impenetrable by water.

Before and after of a pressure-washed building, showing the difference in cleanliness.

Mold

If mold spores manage to take root in your deck, they eat away at the wood until it is too weak to support you. With proper sealing, however, there will be nowhere for mold to grow.

Annual Sealing for Decks in Chapel Hill, NC

Greg Tilley’s Pressure Cleaning Offers Annual Deck Sealing and Cleaning for Decks in Chapel Hill, NC

We draw on our more than 25 years of experience in Deck Sealing and Cleaning and deep knowledge of the Triangle area to offer specialized services tailored to your specific needs. Once we’re done, your deck can shake off virtually any threat for up to a year!

Protect Your Deck with Periodic Deck Sealing and Cleaning

As effective as annual sealant treatments are, dirt, water, and mold can gradually wear it down, eventually getting into the interior and weakening the wood. To keep this problem minimal, consider ordering periodic Deck Sealing and Cleaning to rinse these threats away. By cleaning your deck on a regular basis, you reduce stress on the sealant, increasing the chance that it will last for the long haul.

At Greg Tilley Exterior Solutions, we recommend cleaning and sealing your deck every 1 to 3 years to protect it from NC’s humid climate, frequent rain, and intense sun exposure. Regular maintenance helps prevent mold, mildew, and wood deterioration.

For the best results, we suggest scheduling deck sealing in the spring or early fall when temperatures are mild (between 50-85°F) and humidity is lower. Sealing in these conditions ensures proper absorption and long-lasting protection.

While DIY pressure washing is possible, using too much pressure or the wrong technique can damage the wood. Greg Tilley Exterior Solutions uses professional-grade equipment and safe cleaning solutions to remove dirt, mildew, and stains without harming your deck’s surface.

We recommend using a high-quality penetrating oil-based sealer or a water-based sealer with UV protection to combat North Carolina’s high humidity and strong sun exposure. Our team selects the best option based on your deck’s material and environmental conditions.

After sealing, your deck typically dries within 24-48 hours, but full curing may take up to 72 hours. We advise keeping furniture, grills, and heavy foot traffic off the deck until it’s fully set for maximum durability.

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