Moss, algae, lichen, black streaks, and built-up debris make a Portland roof look old and wear it out early. We brush it all off by hand, never pressure washing, so your shingles stay intact. Licensed and insured in Oregon.
A Portland roof takes a beating from our wet climate. Moss creeps along the shingle seams, algae leaves long black streaks down the slope, lichen crusts onto the shingles, and fir and maple debris piles up in the valleys. Left alone it all holds moisture against the roof, makes the house look neglected from the street, and shortens the life of an expensive roof. We clean the whole roof by hand with brush cleaning. No pressure washing, no soft washing, and no harsh sprays that strip the protective granules off your shingles or damage your landscaping. We are licensed and insured in Oregon and work throughout the Portland metro, from the west side to Gresham and the Clackamas County suburbs. Most homeowners call when the roof starts looking dark and streaked, or when green growth shows up along the north and west slopes.
Every Portland roof gets the same approach: we clean it by hand with soft brushes and the right technique for your shingle type, never pressure washing or soft washing, because high pressure and harsh sprays strip the granules that protect asphalt shingles. We lift the moss off, brush back algae and the black gloeocapsa streaks, and clear lichen and debris out of the valleys and off the flashing. We work carefully around skylights, vents, and the gutter line, and we bag and haul away what comes off so it does not wash into your gutters or landscaping. After the roof is clean we walk it for trouble spots, cracked or lifted shingles, exposed nails, and worn flashing, and we send you photos with an honest read and a clear price. If your roof sits under heavy fir or maple and moss keeps coming back, we will tell you whether an annual moss treatment is worth it, but only if your roof actually needs one.
Drag the slider to reveal the result
Real Portland, OR roof cleaning. Moss, algae, and black streaks brushed off, shingles restored.
This Portland-metro roof had years of moss and algae built up along the shaded slopes, with the dark gloeocapsa streaking you can see in the before photo. Our crew cleaned the whole roof by hand with brushes, lifted the moss, worked the algae and lichen back off the shingles, and cleared the debris out of the valleys, with no pressure washing at any point. The after shot shows the same roof with the shingles clean and the streaking gone. We finished by checking the flashing and vents and sending the homeowner photos of the condition.
While we are at your Portland home for the roof, ask about the gutters too. The same fir needles and maple leaves that feed roof moss pack the gutters solid and send water down the fascia. We hand-clear the full run, flush every downspout, and haul away every bag of debris.
See our Gutter Cleaning page for PortlandCovering Beaverton, Gresham, Hillsboro, Lake Oswego, Happy Valley, and Tigard (zip code 97206 and surrounding).
Local crews, no high-pressure sales, and work backed by our satisfaction guarantee. We will give you a clear price and only do what you approve.
Common questions from Portland-area homeowners.
Worked all day to clean not just my roof but my little out building as well. Trimmed back branches that were hanging over the buildings. It was a bi...
Did a great job and was very polite.
I had moss and a lot of dirt accumulated on my 2 story roof. All Seasons did a fantastic job of sweeping off all the gunk then they treated the roof ...
I first met with Ben from All Seasons for landscape maintenance and gutter cleaning. Ben is enthusiastic, knowledgeable and thorough. This company is...
Very efficient and clear communication from scheduling to quotes to payments.
Very happy with the work completed by All Seasons. Our roof and gutters look amazing. Their two technicians, Vova and Ivan, were complete professi...
David and Ruslan did an excellent job on my mossy roof and throughly clogged gutters. They were on the roof all day and didn’t stop until after dark t...
The team was on time and transparent about prices. I also enjoyed their invoice breakdown with before and after pictures. Our gutters and our dryer ve...
Great customer service from start to finish. The team was timely, communicative, friendly, and respectful throughout the entire process. We especially...
Had a dryer cleaning done. I suspected the duct under the house became clogged, then the previous owner ripped the duct from the wall instead of remov...
I was very pleased with the service that I received from All Seasons Cleaning Services. Their crew called to let me know that they were on the way be...
The technician took his time and cleaned the roof, gutter guards and the gutter. They were piled up with pine needles, leaves, and twigs so it wasn't ...
Very professional. Like results. Thank you.
Gutter, roof cleaning. Replace some shingles and rusty nails. Last year tree cutting and plant trimming.
All Seasons did an amazing job cleaning the moss from my roof and treating the roof to prevent regrowth. They cleaned up all of the roof debris and le...
All Seasons did a great job of safely removing three very large trees adjacent to my yard fencing. They cleaned up the site well, communicated clearl...
I couldn’t be happier with the service from All Seasons! They did a fantastic job cleaning the moss off my roof and clearing out my gutters. They insp...
All Seasons came to do a 5-step roof cleaning and after the roof inspection 3 important issues were added that needed repairs. David was very eff...
I just want to take a minute to write a review because good work deserves to be recognized. I needed to have my roof cleaned due to extensive moss bui...
Very professional, & with great communication. We will definitely be using their services in the future.
