
Roof Cleaning
Blackstone Valley & MetroWest Boston
Safe soft wash roof cleaning removes moss, algae, and dark stains without damaging shingles. Extends roof lifespan and restores home appearance.
Protect Your Roof Investment
Dark stains and moss aren't just cosmetic issues - they trap moisture and can shorten roof lifespan. Drake Power Washing's gentle soft wash method removes buildup safely and extends the life of your roof.
Roof Safe Method
Gentle soft wash technique is safe for all shingle types, asphalt roofing, and won't damage granules.
Moss & Algae Removal
Eliminate moss, algae, and dark streaks that trap moisture and reduce roof lifespan.
Extends Lifespan
Regular soft wash cleaning protects your investment and keeps warranties valid.
Soft Wash Applied at the Source
Drake Power Washing applies biodegradable soft wash solution directly to the roof surface from a safe working position. The chemistry does the work, dissolving moss, algae, and organic staining at the root so it won't return in weeks.
Unlike pressure washing, our low-pressure method protects granules, flashings, and caulking so your roof leaves each job cleaner and undamaged.
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Roof Cleaning Transformations
Professional soft wash roof cleaning removes years of buildup and restores your home's appearance. Slide to see the dramatic transformations.
Aerial Roof Moss Removal
Heavy moss and algae completely removed from asphalt shingles


Brick Chimney Restoration
Moss and debris removed from chimney and surrounding roof area


Heavy Moss Removal from Chimney
Thick green moss growth eliminated, brick appearance restored


Complete Roof Restoration
Professional soft wash removes stains and extends roof lifespan


Roof Cleaning Coverage Map
Drake Power Washing provides professional services Massachusetts cities & towns in Blackstone Valley & MetroWest Boston in the I-495 Corridor. Find your city or town below.

Commercial Buildings

Fleet Vehicles

Driveways & Patios

Residential Homes
Franklin · Wrentham · Plainville · Norfolk
Walpole · Medfield · Millis
Medway · Mansfield
Bellingham
Milford · Hopedale · Mendon · Upton
Millbury · Millville
Recent Roof Washing in Northbridge
Real local roofs, photographed on the job by our crew.

Algae streaking on a Northbridge colonial: the growth we remove without pressure.

Years of biological growth around a chimney: a candidate for shingle-safe treatment.
How a No-Pressure Roof Treatment Works
Roof cleaning is chemistry, not pressure. Here is the sequence we follow on every roof:
- 1Inspect shingle condition, flashing, and gutters from the ladder before any treatment is applied.
- 2Protect gutters, downspout discharge zones, and landscaping below the roofline.
- 3Apply a soft wash solution at zero pressure that kills the Gloeocapsa magma algae causing black streaks.
- 4Treat moss and lichen colonies and let the solution do the work. Thick growth releases over following weeks rather than being scraped off.
- 5Rinse all runoff paths and landscaping thoroughly before leaving the site.
Why We Never Put a Pressure Washer on Shingles
Asphalt shingles are surfaced with ceramic granules that pressure washing strips away, taking years off a roof. Our roof rig applies treatment through a dedicated low-flow pump at less pressure than rainfall. We also never power-scrape moss. Killing it chemically and letting it release naturally is the only shingle-safe approach.
Before & After: A Streaked Roof in Franklin
A homeowner in Franklin was quoted for premature roof replacement because heavy black streaking made the shingles look failed. One treatment removed the staining completely, the roof passed its next inspection, and replacement was deferred for years, at a small fraction of a re-roof cost.
Roof Cleaning Cost Factors
A roof cleaning quote depends on:
- Roof size and pitch: steep or cut-up rooflines take more time and safety setup.
- Type and severity of growth: light streaking treats faster than established moss and lichen colonies.
- Accessibility: walkable roofs versus ladder-and-lift work from the ground.
- Gutter condition: heavily filled gutters may need cleaning first so treatment can drain properly.
Roof Cleaning FAQs
What causes the black streaks on my roof?
A cyanobacteria called Gloeocapsa magma that feeds on the limestone filler in shingles. It spreads across the roof and darkens over time. It is a living organism, not dirt.
Will the moss come off the same day?
Streaking usually disappears at treatment. Thick moss and lichen die immediately but release gradually over several weeks with weather, which is the shingle-safe way.
Is roof cleaning safe for my shingles?
Yes. Our no-pressure method follows ARMA (Asphalt Roofing Manufacturers Association) guidance. Pressure washing a roof is what voids warranties, and we never do it.
How long do results last?
Typically three to five years depending on tree cover and shade. Roofs under heavy overhang regrow faster.
Can cleaning really delay a roof replacement?
If shingles are structurally sound, yes. Staining alone makes many roofs look far older than they are. Cleaning restores the appearance for a fraction of replacement cost.
Schedule Roof Cleaning Today
Protect your roof with safe soft wash cleaning. Licensed, insured, and safe for all roof types.
Monday-Friday: 7AM-5PM | Saturday: 8AM-2PM