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Deck Cleaning & Wood Surface Restoration in NH

Your deck takes a beating year-round. Our low-pressure soft wash removes mold, mildew, algae, and grey weathering — restoring wood safely without raising the grain.

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Deck cleaning and wood restoration in NH

Why your deck needs professional cleaning

New Hampshire winters, spring moisture, summer sun, and fall leaves all contribute to the buildup of mold, mildew, algae, and ground-in dirt that makes wood look grey, worn, and slippery. Regular cleaning not only restores your deck's appearance — it protects the wood and extends its life. It's also essential preparation before applying any stain or sealant.

Surfaces we clean

  • Pressure-treated pine decks
  • Cedar and redwood decks
  • Composite decking
  • Wood pergolas and gazebos
  • Cedar shake and wood siding
  • Wood fences and railings

Why soft washing beats pressure washing for wood

High-pressure washing raises wood grain, causes splintering, and forces water deep into the wood — all of which accelerate rot and damage. Our low-pressure soft wash process cleans just as thoroughly while being far gentler on wood fibers. After cleaning your wood is ready for staining, sealing, or simply left to dry naturally.

Where we serve

We serve the NH Seacoast including Portsmouth, Exeter, Dover, Durham, Hampton, Stratham, Lee, Nottingham, and Barrington, as well as Southern Maine (Kittery, York, Berwick, Eliot) and the NH Lakes Region (Wolfeboro, Alton, Gilmanton, Barnstead, New Durham).

Deck cleaning cost in NH

Deck cleaning typically runs $200–$450 for an average NH deck, depending on size, condition, and material. Heavily neglected decks or those requiring extra prep may cost more. Combining deck cleaning with house washing often saves on mobilization — ask about bundling when you request your estimate.

Timing: when to clean your deck

Spring is the ideal time to clean a wood deck in NH — you're clearing a winter's worth of mold, mildew, and moisture before the outdoor season begins. If you're planning to stain or seal, allow the wood at least 48–72 hours to dry after cleaning before applying any finish. Avoid cleaning in direct afternoon sun, which can cause cleaning solutions to dry too quickly and reduce effectiveness.

Related services

We also clean wood and vinyl fences and driveways and patios — ask about bundling multiple surfaces in one visit.

FAQs

Can you clean my deck before I stain or seal it?
Absolutely — in fact, cleaning before staining is essential. Stain and sealer won't penetrate properly over mold, mildew, or dirt. We clean the surface down to bare, open wood grain so your finish bonds correctly and lasts longer.
How often should a wood deck be cleaned?
Most decks benefit from professional cleaning every 1–2 years, or every time before applying a fresh coat of stain or sealant. Decks in shaded areas or near trees may need more frequent cleaning.
Do you clean composite decking?
Yes. While composite decking doesn't absorb stains the way wood does, it still develops mold, mildew, and algae — especially in shaded or moist areas. Our soft wash process is safe for composite materials.
Should I clean my deck in the spring or fall?
Spring is generally the better choice — you're clearing off a winter's worth of mold, mildew, and debris, and getting the deck ready for the season. Fall cleaning makes sense if you're planning to stain before winter or if your deck is heavily shaded and tends to stay wet.

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(603) 416-1498

Mon – Sat, 7am – 6pm

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