Wood and composite decks, board fences
Deck & Fence Cleaning in Portland, ME
Slippery green boards and gray rails brought back without furring the wood.
- Free on-site estimates
- Itemized quote on paper, approved before we start
- Low-pressure methods for siding, roofs and old brick

A Short Summer Deserves a Clean Deck
Deck and fence cleaning matters more in Maine than in drier places. A deck that sits under snow for months and then through a wet spring comes out gray, green in the shade, and slick underfoot, and board fences along a property line hold moisture where they meet the ground. With July highs around 80 degrees and only a few months of real deck weather, most people want the boards clean by Memorial Day.
Wood needs a lighter touch than concrete
Softwoods like pressure-treated pine and cedar are easy to damage. Too much pressure, or a nozzle held too close, raises fibers so the surface looks fuzzy when it dries, carves lines along the grain and wears away the edges of boards. We use a cleaning solution to loosen mildew and algae, low pressure with a wide fan, and long, even passes along the length of each board. On weathered gray wood a wood brightener can bring back color after cleaning.
Composite decks
Composite boards do not go gray like wood, but they do grow mildew and collect pollen, leaf stains and grime in the textured surface. Each composite brand publishes its own care instructions, and we follow them for your boards when the brand is known, starting with a mild cleaner and soft brushing and keeping pressure low.
Getting ready to stain or seal
Stain sticks to clean, dry wood. If you plan to stain, the deck should be washed first to remove mildew, dirt and loose old finish, then left to dry for at least a couple of dry days, longer after a damp spell. HomeGuide lists washing, staining and sealing together at about $0.50 to $1.50 per square foot. We handle the cleaning and prep; if staining is on your list too, mention it during the visit and it goes on the quote.
Fences along the lot line
Board fences, picket fences and lattice usually look worst at the bottom, where splashback and snow keep them wet. Both sides need cleaning for an even look, which means access to the neighbor's side. We ask you to arrange that before the job. Vinyl fences clean up with a soft wash and rinse; wood fences get the same light-pressure treatment as decks.
Railings, stairs and what is underneath
Railings, balusters and stairs take more time than open boards, and HomeGuide prices them separately: about $65 per staircase and $2.50 to $3.50 per linear foot of handrail. We clean them with the deck so the whole structure matches. While washing we also point out soft boards, loose railings, popped nails and rusted fasteners, which are common on decks near salt air.
Plants and runoff
Decks often sit over garden beds. We wet or cover plants below, keep solution from dripping onto them, and direct rinse water onto lawn rather than toward the driveway and street.
What This Covers
Boards, rails, posts and pickets, wood or composite.
Deck boards
Wood or composite decking cleaned with solution and low, even pressure.
Railings and stairs
Balusters, top rails, posts and stair treads cleaned to match the deck.
Wood brightening
An optional brightener after cleaning to restore color to gray wood.
Board and vinyl fences
Privacy, picket and lattice fences washed on one or both sides.
Stain prep
Washing scheduled so boards have time to dry out before stain or sealer.

Typical Deck & Fence Cleaning Costs
| Item | Published range |
|---|---|
| Deck cleaning (HomeGuide) | $120 to $240, about $0.35 per sq ft |
| Patio or deck (Angi) | $100 to $200 |
| Deck stairs | about $65 per staircase |
| Handrails | $2.50 to $3.50 per linear foot |
| Fence (Angi) | $150 to $300 |
| Fence, per square foot (HomeGuide) | $0.30 to $0.50 |
| Wash, stain and seal a deck | $0.50 to $1.50 per sq ft |
Figures from HomeGuide and Angi cost guides. Greater Portland jobs often price above the national numbers, and the size of the job, how high and how reachable it is, and the amount of growth all move the total. The approved quote sets what you pay.
How It Works
1. Check the wood
We identify the material, look for soft boards and loose rails, and note plants below.
2. Clear and protect
Furniture and grills moved, plants wetted or covered.
3. Clean
Solution applied, then a low-pressure fan rinse along the grain.
4. Brighten and dry
Optional brightener, a final rinse, and drying time before any stain.

Deck & Fence Cleaning Questions
Can a power washer ruin deck boards?
Yes, when the setting is too strong or the tip too close, which furs and gouges the wood. We use a cleaning solution, low pressure and a wide fan along the grain to avoid that.
How many days between washing and staining?
Let the wood dry fully, usually at least a couple of dry, warm days, and longer after rain or in shade. Stain applied to damp wood does not soak in evenly.
Do composite decks need different cleaning?
Yes, with a mild cleaner, soft brushing and low pressure. Each brand publishes its own care instructions, so tell us the brand if you know it and we will follow its guidance.
Do you clean both sides of a fence?
Yes, provided the neighbor lets us onto their side. Please arrange permission before the job, or we will clean only your side.
Deck & Fence Cleaning Service Areas
- Pressure Washing in Portland, ME
- Pressure Washing in South Portland, ME
- Pressure Washing in Cape Elizabeth, ME
- Pressure Washing in Falmouth, ME
- Pressure Washing in Westbrook, ME
- Pressure Washing in Scarborough, ME
- Pressure Washing in Cumberland, ME
- Pressure Washing in Yarmouth, ME
- Pressure Washing in Gorham, ME
- Pressure Washing in Windham, ME
- Pressure Washing in Freeport, ME
- Pressure Washing in Saco, ME
- Pressure Washing in Biddeford, ME
- Pressure Washing in Old Orchard Beach, ME
- Pressure Washing in Kennebunk, ME
- Pressure Washing in Brunswick, ME
- Pressure Washing in Standish, ME
- Pressure Washing in Gray, ME
Get a Deck & Fence Cleaning Estimate
Book a free visit to price your deck or fence.