Portland Clean Roof
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PORTLAND'S LOCAL ROOF CLEANING NETWORK

CCB-verified roof cleaning, built for Portland moss.

Soft wash, never pressure wash. Honest cost ranges for your ZIP, and free quotes from local cleaners who know the Forest Park canopy and the Council Crest pitch.

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Get matched with a Portland cleaning crew

4 quick questions. CCB-licensed, soft-wash only, your ZIP only.

01
Location
02
Service
03
Timing
04
Contact

We match you with crews who actively service your ZIP.

CCB-verified crewsSoft wash onlyNo spam, ever
Portland: $12,500 avg | Portland: $10,800 avg | Bend: $13,200 avg | Salem: $10,200 avg | Medford: $10,500 avgPortland: $12,500 avg | Portland: $10,800 avg | Bend: $13,200 avg | Salem: $10,200 avg | Medford: $10,500 avgPortland: $12,500 avg | Portland: $10,800 avg | Bend: $13,200 avg | Salem: $10,200 avg | Medford: $10,500 avgPortland: $12,500 avg | Portland: $10,800 avg | Bend: $13,200 avg | Salem: $10,200 avg | Medford: $10,500 avgPortland: $12,500 avg | Portland: $10,800 avg | Bend: $13,200 avg | Salem: $10,200 avg | Medford: $10,500 avgPortland: $12,500 avg | Portland: $10,800 avg | Bend: $13,200 avg | Salem: $10,200 avg | Medford: $10,500 avg

Built for the Portland Clean Roof Market

CCB-Licensed Cleaning Crews

Every contractor we match you with is an active Oregon CCB licensee carrying current workers compensation and general liability. We verify the license number before we send the match, not after.

Real Portland Cleaning Cost Data

We publish actual cost ranges for moss removal, soft wash, gutter cleaning, and zinc strip installation across the canopied Portland neighborhoods we cover. No national averages, no $99 teaser quotes that turn into $800 at the truck.

Built Around the Portland Moss Problem

37 inches of annual rainfall, dense Douglas fir canopy, and the cyanobacteria that streaks every north-facing slope. We match you with crews who do soft wash by default and never pressure-wash asphalt shingles.

Portland Metro Cleaning Cost Index

Real cost ranges and worked examples for the Portland Metro markets we cover

CityAvg CostRangeIndex %
Forest Park / NW PortlandHighest Moss Pressure$875$550 - $1,300
142%
Eastmoreland / Reed College$760$480 - $1,100
125%
Lake OswegoPremium Market$920$620 - $1,450
150%
West Hills / Council CrestSteepest Access$980$650 - $1,500
155%

Portland Neighborhoods We Serve

Bespoke cleaning cost data for the heaviest-canopy zones in the Portland metro

Forest Park / NW Portland
Portland Metro
$875 avg
Eastmoreland / Reed College
Portland Metro
$760 avg
Lake Oswego
Portland Metro Suburbs
$920 avg
West Hills / Council Crest
Portland Metro
$980 avg

Portland Clean Roof Services

Moss removal, soft wash, gutter cleaning, and preventive zinc strip installation

Moss Removal & Treatment

$350 - $950

Full moss removal and chemical treatment for Portland roofs runs $350 to $950 depending on roof size, moss severity, and access. The job combines gentle hand removal of established moss mats with a follow-up chemical kill that suppresses regrowth across the entire roof surface for 18-30 months. This is the anchor service for the Portland metro climate.

Algae & Black Streak Removal

$380 - $1,100

Removal of black streaks caused by Gloeocapsa magma algae on Portland roofs runs $380 to $1,100. The black streaks that homeowners often mistake for water damage are a hardy cyanobacteria species that feeds on the limestone filler in asphalt shingles. Soft-wash chemical removal is the only correct approach; the alternative (pressure washing) strips granules and shortens roof life.

Soft Wash Roof Cleaning

$450 - $1,300

Soft wash is the full-roof low-pressure chemical cleaning protocol used as a one-time service for moss, algae, and accumulated debris. A Portland soft wash project runs $450 to $1,300 depending on roof area and severity. Unlike pressure washing, soft wash uses chemistry (not water pressure) to do the cleaning work and leaves shingle granules intact.

Gutter Cleaning

$180 - $480

Gutter cleaning across Portland runs $180 to $480 per visit depending on home size, story count, and debris severity. Twice-yearly clean is the standard schedule (October before heavy leaf fall and March after the wet season), but homes under heavy canopy may need quarterly. Blocked gutters back water under eave shingles, accelerating the deck rot that drives expensive structural repairs.

Zinc Strip Installation

$220 - $580

Zinc strip installation along the ridge runs $220 to $580 as a one-time install at Portland homes. The strips release trace zinc ions with each rainfall, suppressing moss and algae growth across the entire downslope for 15-25 years. Combined with periodic chemical treatment, zinc strips reduce moss-related cleaning frequency by half and are one of the highest-return preventive investments in the Portland metro climate.

Portland Clean Roof Questions, Answered

How much does roof cleaning cost in Portland?+
Standard moss treatment plus soft wash on a 1,500-2,200 sq ft Portland home runs $350-$950, with most jobs landing $500-$700. Heavily canopied neighborhoods (Forest Park orbit, Eastmoreland heritage lots, Council Crest steep pitches) push another $200-$500 above those baselines because access and severity both run higher. Cedar shake cleaning uses different chemistry and runs higher, typically $700-$1,400.
Should I clean my roof myself or hire a contractor?+
Single-story homes with safe ladder access and pitch under 6:12 are reasonable DIY candidates: materials cost $80-$150 in chemistry plus equipment rental. Two-story and steep-pitch homes (above 8:12) are where the professional cost is genuinely competitive because the fall risk is real. Most West Hills, Council Crest, and Eastmoreland two-story homes fall on the hire-it-out side of the line.
What's the difference between soft washing and pressure washing for roofs?+
Soft wash uses low pressure (under 500 PSI) and chemistry to kill biological growth. Pressure wash uses high pressure (1,500+ PSI) and water force. The pressure required to strip moss also strips the protective ceramic granules from asphalt shingles, so pressure washing typically costs you 20-40 percent of your remaining roof life in a single cleaning. Any Portland contractor pitching pressure washing for asphalt shingles is the wrong contractor.
How often should I have my Portland roof cleaned?+
Standard interval is 24-36 months for moderate-canopy Portland neighborhoods. Heavy-canopy lots (Forest Park orbit, Eastmoreland heritage, Council Crest deep streets) need 18-24 months. Light-canopy suburban lots can stretch to 36-48 months. Installing a zinc strip at one of your cleanings roughly doubles the interval between subsequent cleanings.
Are zinc strips actually worth installing?+
Yes, particularly in heavy-canopy Portland neighborhoods. A $400-$580 ridge-line zinc strip installation extends the cleaning interval from 18-24 months to 30-42 months on the same home, paying back within 4-6 cleaning cycles. The mechanism is straightforward: rainwater picks up trace zinc ions from the strip and carries them across the entire downslope, suppressing moss and algae regrowth.