ProfessionalDeck Power Washing & Sealing

Unpainted wood decks gray out, develop mold, and start to splinter when left unsealed. We power wash to lift embedded dirt and mildew, let the wood dry, then apply a penetrating sealant that protects the grain from moisture and UV damage.

Also known as: deck power washing, deck sealing, deck cleaning and sealing, deck washing, deck maintenance, power wash deck, deck waterproofing, deck staining and sealing

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Upfront pricing

Clear, honest quotes before any work begins.

Licensed & insured

Vetted local pros who treat your home with care.

Done right

We stand behind every job until you are satisfied.

What you get

What’s included

Move or cover nearby furniture and plants
Power wash the deck at appropriate pressure for wood
Spot-treat mold or mildew with a wood brightener if needed
Allow the wood to dry fully before applying sealant
Apply one to two coats of penetrating deck sealant

Simple & stress-free

How it works

Wash & treat

We power wash the full deck surface and apply brightener to any sections with mold or heavy weathering.

Dry & assess

We allow drying time — typically 24 to 48 hours — and check that the wood is ready to absorb sealant properly.

Seal & finish

We apply the sealant by brush or roller for even penetration, finishing all board faces and cut ends.

We can help

Problems we fix

Gray, weathered decking that looks old and tired
Mold and mildew spots particularly in shaded sections
Splinters from dried-out surface fibers
Sealant from a previous application peeling and flaking
Water beading poorly on boards that have soaked up previous seasons' rain

Good to know

Deck Power Washing & Sealing — FAQ

Can the washing and sealing happen the same day?

Not typically — wood needs 24 to 48 hours of drying time after washing before sealant will absorb properly. We usually schedule washing and sealing on back-to-back days or across two visits.

What type of sealant do you use?

We work with penetrating oil-based and water-based sealants. The right choice depends on your deck species and whether you want a clear or tinted finish.

How long will the sealant last?

Most quality sealants hold up well for two to four years under normal use, with exposed horizontal surfaces wearing faster than vertical railings.

My deck has old stain peeling off — can you still seal it?

We need to strip the old peeling finish first before new sealant can penetrate. Stripping adds time and cost but is necessary for a result that lasts.

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