Pressure Washing in Dukes County, MA
Dukes County is almost entirely island. Martha's Vineyard sits out in the Atlantic, and its salt air, summer sea fog, and near-constant humidity go to work on every exterior — hazing glass, dulling paint, and feeding the green algae and black mildew that spot the island's weathered cedar shingle. From the white whaling-captain houses along Edgartown harbor to the silver-gray farmhouses up-island in West Tisbury, Chilmark, and Aquinnah, homes here take a coastal beating that inland siding never sees.
Craft Bros Exterior Cleaning is a surface-specific soft-washing company rooted in Western Massachusetts — the Pioneer Valley around Longmeadow and Hampden County — and we extend that same careful approach to Dukes County by request. We lead with gentle, low-pressure soft washing, the right method for salt-laden cedar shingle, ornate painted gingerbread trim, and historic clapboard that high pressure would harm.
Because the Vineyard is reached only by ferry, we plan island visits in advance rather than promising same-day service, and we won't pretend to be based somewhere we're not. Call (351) 242-0666 to confirm scheduling and current availability for your town.
Dukes County is Martha's Vineyard and its scatter of smaller islands — a salt-air world of driftwood-gray cedar shingle, ornate gingerbread cottages in Oak Bluffs, and white whaling-captain clapboard in Edgartown, where near-constant maritime damp and sea fog keep algae, mildew, moss, and salt film a year-round fact of owning a house by the water.

Why Martha's Vineyard Exteriors Get Dirty Faster Than Inland Homes
Dukes County is almost entirely island, and the ocean sets the terms for every exterior on it. Martha's Vineyard sits in a temperate maritime climate where summer humidity often runs in the seventies, and warm air drifting over cool water throws persistent sea fog across the shoreline. That constant surface moisture is exactly what algae, mildew, and moss need to take hold on siding, roofs, and trim.
Salt is the second factor. Onshore wind and sea spray leave a fine saline film on windows, painted trim, and shingle walls that holds dampness against the surface long after a fog lifts. The island's canopy of scrub oak and pitch pine also shades north-facing walls and roof planes and keeps them from drying, growing organic staining faster than most inland Massachusetts neighborhoods see.
Rainfall reinforces the cycle. The island averages close to four feet of precipitation a year, spread fairly evenly across the calendar, so surfaces rarely get a long dry stretch to reset. The result is the familiar Vineyard weathering: a green cast on the north wall, black streaks down the roof, and a salt haze on everything facing the water.
From Edgartown Clapboard to Up-Island Cedar: One County, Many Surfaces
The Vineyard's six towns split into the busier down-island trio of Edgartown, Oak Bluffs, and Tisbury (Vineyard Haven) and the quieter up-island towns of West Tisbury, Chilmark, and Aquinnah — each with its own mix of materials. Edgartown is known for crisp white Greek Revival houses from the whaling era, where painted clapboard and fine trim call for a gentle touch that lifts algae without stripping paint or forcing water behind the boards.
Oak Bluffs is a different animal entirely. Its Camp Ground grew out of a 19th-century Methodist camp meeting and today holds hundreds of ornate gingerbread cottages layered with carved gables, scrollwork, and lancet-window detail. That fragile, painted openwork is the last surface you'd put a pressure wand near; it asks for low-pressure soft washing that cleans the recesses without splintering the millwork.
Up-island, the look shifts to cedar-shingled farmhouses and Shingle-Style homes weathered to driftwood gray, with wide porches facing open fields and water. Natural cedar, painted trim, fiber-cement, brick chimneys, and hardscape all age differently and tolerate different amounts of pressure, so we read each surface before choosing a method.
The Exterior Problems We See Most Across Dukes County
The most common complaint is organic staining: green algae and black mildew that spot weathered cedar shingle and settle on the damp, shaded sides of a house. On asphalt-shingle roofs, the dark streaks are usually Gloeocapsa magma, a hardy blue-green algae that feeds on the limestone filler in the shingles and thrives on broad, slow-drying planes. High pressure is the wrong answer — blasting a roof strips protective granules and can void the shingle warranty.
Salt film is the coastal signature. It hazes glass and dulls painted siding and trim, and because it attracts and holds moisture, it can accelerate the very algae growth homeowners are trying to clear. Shaded walls and roofs under scrub oak and pitch pine also collect moss and lichen, whose root-like structures grip into shingle and masonry and need to be softened and lifted rather than scraped off.
Seasonal use rounds out the list. Many Vineyard houses sit closed through a damp off-season and open in spring with musty mildew on north walls and porch ceilings. Spring also brings tree pollen and pitch-pine sap, while brick chimneys and walkways can show white efflorescence and green growth in the joints.
When Is the Best Time to Clean on the Island?
Late spring through early fall is the practical window on Martha's Vineyard, both because the weather cooperates and because it fits how the island is used. Many owners want exteriors cleaned in May or June, before the season, to clear the mildew and musty film that build up while a seasonal house sits closed.
Early fall is the other natural time, after the summer crowds thin and before winter sets in. A soft wash going into the colder months clears the organic growth and salt film that would otherwise sit on the surface all winter, holding moisture against siding and roofing through freeze-and-thaw. The maritime climate keeps island winters milder than the mainland, but wind-driven rain and salt still work on exteriors year-round.
Cleaning is never a one-and-done fix — algae and streaks return over time in any coastal New England climate, and salt-exposed homes near the water tend to need attention sooner. A periodic soft wash on a sensible schedule helps keep organic growth in check and slows how quickly it returns.
Soft Washing vs. Controlled Pressure: Matching the Method to the Material
Soft washing is the core of how we work, and it suits nearly everything that makes a Vineyard house look like one. Rather than relying on force, it applies a biodegradable cleaning solution — surfactants with a controlled amount of sodium hypochlorite where appropriate — at low pressure. That treats algae, mildew, and moss at the root, so the surface stays clean longer than a quick blast that removes only the top layer.
Cedar shingle, painted clapboard, gingerbread trim, fiber-cement, stucco, and every roof are soft-wash surfaces, full stop. High pressure tears the grain of cedar, drives water behind siding, strips granules off asphalt shingles, and can destroy the fine millwork that makes Oak Bluffs' cottages famous. We never take a pressure wand to those materials.
Controlled pressure still has its place — on the durable hardscape around these homes. Concrete walkways, brick patios, stone steps, and paver driveways can take a measured amount of pressure to clear ground-in grime, moss, and salt residue, with attention to joint sand and older, softer brick. The skill is knowing which surface is in front of you and dialing the approach to match.
How Craft Bros Covers Dukes County and Martha's Vineyard
Craft Bros Exterior Cleaning is a surface-specific soft-washing company rooted in Western Massachusetts — the Pioneer Valley around Longmeadow and Hampden County. We are not based on Martha's Vineyard and keep no crew or office there, so we won't pretend to be a fixture on the island. What we do is extend the same careful, method-first approach to Dukes County by request.
Because the Vineyard is reached only by ferry, island work is planned in advance rather than offered same-day. We serve all six towns — Edgartown, Oak Bluffs, Tisbury (Vineyard Haven), West Tisbury, Chilmark, and Aquinnah — coordinating visits around ferry logistics. Dukes County also takes in Chappaquiddick and the Elizabeth Islands town of Gosnold, out toward Cuttyhunk; those are far more remote, so reach out and we'll be straight about what we can arrange.
The best first step is a conversation. Call (351) 242-0666 or contact us with your town, your home's surfaces, and what you're seeing, and we'll talk through the right method and confirm current availability for your part of the island.
Where We Work in Dukes County
Common Exterior Problems in Dukes County
- Salt-air haze and sea-spray film that dull siding, haze windows, and cling to painted trim near the water
- Green algae and black mildew spotting weathered, silver-gray cedar shingle on siding and roofs
- Gloeocapsa magma streaking on asphalt-shingle roofs, worst on broad, slow-drying, shaded planes
- Moss and lichen on north walls and shaded roofs beneath scrub oak and pitch pine
- Musty mildew on seasonal homes opened in spring after a damp off-season closed up
- Spring tree pollen and pitch-pine sap coating porches, trim, and outdoor surfaces
- Efflorescence and green growth in brick chimneys, walkways, patios, and foundation joints
Services Available Across the County

House Washing
Gentle, low-pressure siding cleaning that lifts algae and grime without forcing water behind your siding.
Low-pressure soft washingLearn more
Roof Cleaning
Roof-safe soft washing that removes black streaks, moss, and lichen without ever putting high pressure on your shingles.
Low-pressure soft washingLearn more
Driveway Cleaning
Even, streak-free concrete cleaning that lifts algae, tire marks, leaf tannin, and winter salt residue from your driveway and hardscape.
Controlled pressure washingLearn more
Patio & Walkway Cleaning
Joint-safe cleaning for pavers, brick, and stone that clears moss and organic film without blowing out the sand.
Controlled pressure washingLearn more
Deck & Fence Cleaning
Wood-safe cleaning that lifts grey weathering and mildew from decks and fences — and preps the wood for sealing.
Low-pressure soft washingLearn more
Gutter Cleaning
We clear the debris inside and brighten the black oxidation streaks on the outside — two different jobs, done right.
Low-pressure soft washingLearn more
Soft Washing
Our core specialty: low-pressure, biodegradable cleaning for roofs, siding, and every delicate surface high pressure would ruin.
Low-pressure soft washingLearn more
Commercial Exterior Cleaning
Exterior cleaning for storefronts, offices, multifamily properties, and the property managers who maintain them.
Hybrid (soft-wash pre-treatment + controlled pressure)Learn moreSoft Washing the Vineyard's Cedar Shingle, Clapboard, and Gingerbread
The Vineyard's signature surfaces — cedar shingle weathered to driftwood gray, the crisp white clapboard of Edgartown's whaling-captain houses, and the carved scrollwork of Oak Bluffs' Camp Ground gingerbread cottages — are exactly the delicate, salt-exposed materials that high-pressure cleaning punishes. Blasting cedar tears the grain and drives water behind the shingles; hammering painted gingerbread strips away the fine millwork those cottages are known for. We match the method to the material: gentle, low-pressure soft washing with a carefully chosen solution and plant protection to lift algae, mildew, moss, and salt film while leaving the wood and finish intact. Craft Bros is not based on the island — we're rooted in Western Massachusetts — so we plan Vineyard work around ferry logistics; reach out and we'll confirm what we can schedule for your town.
Towns We Cover in Dukes County
Don't see your town? We serve the whole county — call us to confirm scheduling in your area.
The Right Method for Every Surface
Soft Washing
Low pressure (under 500 PSI) plus a biodegradable solution.
- Roofs & shingles
- Siding (vinyl, wood, fiber cement)
- Stucco & painted surfaces
- Historic wood & antique brick
- Screened porches & trim
Controlled Pressure Washing
Higher pressure matched to durable, hard surfaces.
- Concrete driveways
- Walkways & steps
- Paver & stone patios
- Brick in good condition
- Pool decks & hardscape
Dukes County FAQs
Craft Bros Exterior Cleaning is based in Western Massachusetts, not on Martha's Vineyard, so we don't keep a crew or office on the island. We extend our soft-washing coverage to Dukes County by request and plan island visits around ferry logistics rather than offering same-day or on-demand service. We serve all six towns — Edgartown, Oak Bluffs, Tisbury (Vineyard Haven), West Tisbury, Chilmark, and Aquinnah — and can talk through the more remote parts of the county too. The best first step is to call (351) 242-0666 to confirm current availability and scheduling for your town.
Yes — soft washing is the roof-safe method. It applies a cleaning solution at low pressure to kill the black-streak algae and moss common in our river valley, without the high pressure that strips shingle granules. It's the approach aligned with roofing-manufacturer guidance.
We pre-wet all landscaping, cover delicate plants, and rinse thoroughly. Solutions are applied and rinsed following product-specific guidance to protect your plantings — we don't treat any solution as harmless, so careful handling is part of every job.
It depends on the surfaces and the size of your home. As a rough guide, a house wash often takes 2–4 hours, roof cleaning 3–6 hours, and driveways 1–3 hours. We give you a specific estimate during your assessment.
Not necessarily, as long as we have access to water and the areas being cleaned. Many homeowners prefer to be present for the initial walkthrough, but we can complete the work while you're away.
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