We specialize in roof moss removal and soft wash roof cleaning throughout Portland, OR. Our low-pressure treatment safely eliminates moss, algae, and lichen from asphalt shingles and tile roof without causing damage.

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    The Only 12-Month Moss Guarantee in Portland

    Most roof cleaning companies in Portland will clean your roof and disappear. We do things differently.

    If moss visibly regrows on any area we treated within 12 months of your service date, we return and retreat it — at no charge. No phone tag. No conditions buried in fine print. We just show up and fix it.

    We can make this offer because we don’t just scrub surface moss. We apply a professional-grade biocide that kills moss at the spore level — dramatically reducing regrowth compared to pressure washing or consumer products from a hardware store.

    No other roof cleaner in Portland currently offers a written 12-month guarantee. We do.

    Our Guarantee: If moss returns to your roof within 12 months of service, we treat it again for free. Period.

    See how we remove roof moss step by step using our soft wash process on a home in Portland, OR — safely, without high-pressure washing.

    Why Portland Homes Need Roof Cleaning Every 1-3 Years

    Portland receives an average of 36 inches of rain per year — and neighborhoods like Sellwood, Woodstock, Eastmoreland, Lake Oswego, and NW Portland sit under Douglas fir canopy that keeps roofs shaded and damp for most of the year.

    Moss thrives in exactly those conditions. Once established, moss holds moisture against your shingles, lifting edges and accelerating granule loss. Left untreated for several years, moss can significantly shorten the lifespan of an asphalt shingle roof — and lead to leaks, rot on cedar shake roofs, and voided manufacturer warranties.

    Most Portland homeowners on tree-lined streets need roof cleaning every 1-2 years. Properties with good sun exposure can often go 2-3 years between treatments.

    Learn More About Softwash Process

    Our Roof Cleaning & Moss Removal Services in Portland

    • Roof Moss Removal

    Safe soft wash treatment to eliminate moss, algae, and lichen from asphalt shingle and tile roofs.

    • Roof Treatment / Prevention

    Professional soft wash application designed to kill organic growth at the root and help slow moss regrowth in Portland’s damp climate.

    • Soft Wash Roof Cleaning

    Low-pressure roof cleaning process that gently restores your roof’s appearance while protecting shingles and extending roof life.

    • Tile Roof Cleaning

    Gentle soft wash cleaning designed specifically for tile roofs to remove moss, algae, and buildup without cracking or damaging the tiles.

    What We Do

    We know the importance of maintaining a clean and tidy exterior of your home or business. That's why we offer a variety of professional cleaning services to ensure your property is always looking its best.

    Roof Cleaning Portland OR

    Roof Softwash

    Complete roof cleaning service that removes moss, algae, black streaks, and debris using a safe soft wash process.

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    Gutter Cleaning

    Thorough gutter and downspout cleaning to prevent clogs, overflow, and water damage around your home.

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    Driveway Pressure wash in Portland

    Pressure Wash

    Professional surface cleaning for driveways, patios, and concrete areas to remove dirt, stains, and buildup safely.

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    house wash in portland

    House Wash

    Exterior soft wash cleaning that removes algae, mildew, and grime from siding without damaging paint or trim.

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    Before & After Portfolio

    We take great pride in our work and strive to exceed our customers’ expectations every single time. Don’t just take our word for it, check out our reviews and see for yourself the difference we can make in transforming your home.

    Locally Owned. Owner-Operated. Portland-Based.

    Premium PowerWash is owned and operated by Dimitri and Alec — two Portland brothers who have been cleaning roofs in this area for 5 years.
    We’re not a franchise. We’re not a call center assigning leads to whoever picks up the phone. When you book with us, one of the owners shows up to do the work.
    We started this company because we kept seeing Portland homeowners get overcharged by large cleaning operations that sent out undertrained crews with consumer-grade equipment. We use professional tools and solutions, show up on time, and stand behind our work with a written guarantee.
    •  535+ Portland-area homes cleaned
    •  $1,000,000 General Liability Insurance
    •  5 years serving Portland and the metro area
    •  2 owner operators
    •  ★ 5.0 average across 104 Google reviews
    •  Hours: Mon–Fri 9am–7pm | Sat–Sun Closed

    What Portland Homeowners Are Saying

    We’ve cleaned 535+ roofs across Portland, Beaverton, Lake Oswego, and the surrounding metro. Here’s what our neighbors have to say.

    See More Reviews

    Frequently Asked Questions About Roof Cleaning in Portland, OR

    Which Portland neighborhoods do you serve?

    We serve all Portland neighborhoods and the surrounding metro area — from Sellwood, Eastmoreland, and Woodstock on the east side to NW Portland, Lake Oswego, Beaverton, and Tigard. We also serve Gresham, Oregon City, Sherwood, Tualatin, West Linn, Wilsonville, Happy Valley, and Vancouver, WA. If you’re within 30 miles of Portland, call us to confirm coverage.

    How long does a roof cleaning take?

    Most residential roofs in Portland take 2–4 hours, depending on size, slope, and the extent of moss buildup. Heavy moss coverage on a large or steep roof can take longer. We’ll give you a specific time estimate when we quote your job.

    Are you insured?

    Yes. We carry $1,000,000 in General Liability insurance covering all residential and commercial exterior cleaning work. You can request a copy of our certificate of insurance at any time before or after booking.

    What makes Premium PowerWash different from other Portland roof cleaners?

    Three things: we’re owner-operated (you get Dimitri or Alec, not a subcontractor), we use professional-grade soft wash solutions that kill moss at the spore level, and we back every job with a written 12-month guarantee. No other Portland roof cleaner currently offers that combination.

    Do you clean more than just roofs?

    Yes. We offer gutter cleaning, house washing, pressure washing, window cleaning, and commercial exterior cleaning. Most Portland homeowners combine roof cleaning and gutter cleaning in a single visit — it’s more efficient and protects your whole drainage system in one appointment.

    What does your 12-month guarantee cover?

    If moss visibly regrows on any area we treated within 12 months of your service date, we return and treat that area at no charge. The guarantee applies to moss regrowth in treated areas — it doesn’t cover new debris, storm damage, or areas outside the original scope of work.

    Contact Us

    Get a Free Portland Roof Cleaning Estimate

    Free. No obligation. No pressure.
    We’ll assess your roof, explain what we recommend, and give you a clear upfront price. If you decide not to book, the estimate costs you nothing.

    gutter cleaning portland or

    Our Phone

    (503) 575-6575

    gutter cleaning portland or

    Our Email

    dimitri@roofcleaningportlandor.com

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