Your Roof Cleaning Experts in Tualatin, OR

Tualatin sits in the Tualatin River basin — one of the wettest, most overcast microclimates in Washington County. Fog settles overnight and lifts late, keeping roof surfaces damp for hours each morning. That persistent moisture, combined with mild winters that never get cold enough to kill growth, means moss and algae are a year-round problem for Tualatin homeowners.

Premium PowerWash specializes in soft wash roof cleaning for Tualatin homeowners. We remove moss, algae, and black streaks without high-pressure washing — the method that preserves your shingles and is recommended by roofing manufacturers. Call (503) 575-6575 for a free on-site estimate.

Why Tualatin Roofs Grow Moss Year-Round

The Tualatin River basin gets consistent moisture from October through May. Fog settles overnight and lifts late, keeping roof surfaces damp for hours each morning — exactly the conditions moss and lichen need to take hold. Mild winters mean growth never fully dies back between seasons.

Moss isn’t cosmetic. Its root-like structures push under asphalt shingle tabs and lift them, letting water in underneath. Once moisture reaches the decking, you’re looking at rot, structural damage, and a roof replacement that runs $10,000–$20,000 on most Tualatin homes. Annual cleaning costs a fraction of that.

Our Soft Wash Process — Safe for Every Roof Type

We use soft washing: low-pressure application of a biodegradable cleaning solution that kills moss, algae, and lichen at the root rather than blasting them off the surface. High-pressure washing strips protective granules from asphalt shingles and forces water under the tabs — it’s why the Asphalt Roofing Manufacturers Association (ARMA) explicitly recommends against it.

Our solution is safe for asphalt shingles, cedar shake, metal, and tile roofs common throughout Tualatin. After treatment, dead moss loosens naturally over the next few weeks of rain — no scraping, no shingle damage. We also apply a moss inhibitor to slow regrowth and extend the time between cleanings.

More Than Cleaning — Full Roof Care in Tualatin

Roof cleaning is our specialty, but we handle the full picture while we’re on site. Our Tualatin services include:

Moss treatment & inhibitor application — kills existing growth and delays regrowth by 2–3 years in Oregon’s climate.

Gutter cleaning — cleared gutters let cleaning runoff drain properly and prevent the standing water that feeds new moss growth.

Roof inspection — we flag lifted shingles, cracked flashing, and early wear before they turn into leaks.

If your roof needs more than cleaning, we’ll tell you honestly and point you in the right direction.

Licensed, Insured, and Local to Tualatin

Premium PowerWash is a family-owned business run by two brothers who work throughout the Portland metro — including Tualatin, Tigard, Sherwood, and Lake Oswego. We’re fully licensed and insured in Oregon. That matters: if a contractor damages your roof or gets hurt on the job and isn’t insured, the liability falls on you.

We show up when we said we would, do the work ourselves — no subcontractors — and don’t leave until the job meets our standard. If something doesn’t look right after we leave, call us and we’ll come back.

Get a Free Roof Cleaning Estimate in Tualatin

Moss doesn’t stop growing while you wait. If you’re seeing green patches, black streaks, or lifted shingle edges on your Tualatin home, get a free on-site assessment before it gets worse.

Call (503) 575-6575 or fill out the form below — we typically respond the same day and can schedule your estimate within the week.

We serve Tualatin and surrounding communities including Tigard, Sherwood, King City, Lake Oswego, and Wilsonville. Call (503) 575-6575 or fill out the form below for a free estimate on roof cleaning or moss treatment.

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.

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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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Pressure Wash

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

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House Wash

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

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Who We Are

Premium PowerWash is a family business started by two brothers in the Portland metro area. We specialize in roof and exterior cleaning — it’s the only thing we do, and we’ve been doing it for 5+ years across Tualatin, Tigard, Lake Oswego, Sherwood, and the surrounding communities.

We’re licensed Oregon contractors and fully insured. When you call, you’re talking to an owner. When we show up, it’s us doing the work — no subcontractors, no strangers on your roof.

We built this business on word-of-mouth. That means your roof gets cleaned the way we’d want our own cleaned.

Contact Us

Get a FREE Estimate

We offer a no-obligation free on-site estimate for our services including roof cleaning, gutter cleaning, pressure washing, and window cleaning in Tualatin, OR. Our team of experts will provide you with a detailed assessment of your property and give you an accurate estimate of the work required.

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Our Phone

(503) 575-6575

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Our Email

dimitri@roofcleaningportlandor.com

    Get a FREE Estimate



    Frequently Asked Questions

    What roof cleaning services does our business offer in Tualatin, OR?

    We offer soft wash roof cleaning, moss and algae treatment, moss inhibitor application, and gutter cleaning for residential properties in Tualatin. Soft washing is our primary method — low-pressure water with a biodegradable cleaning solution that kills organic growth without damaging your shingles. We service all roof types: asphalt shingle, cedar shake, metal, and tile.

    How often should my roof be cleaned in Tualatin, OR?

    In Tualatin’s climate, most homeowners need a roof cleaning every 1 to 2 years. Homes near the Tualatin River or with significant tree cover tend to need it annually due to the persistent moisture and shade. After we apply a moss inhibitor, many customers can extend to every 2–3 years. We’ll give you an honest recommendation based on what we actually see on your roof.

    What materials do we use to clean roofs in Tualatin, OR?

    We use a biodegradable soft wash solution — a diluted sodium hypochlorite blend with a surfactant that helps it penetrate and kill moss, algae, and lichen. The formula is safe for your shingles, landscaping, and pets. We don’t use harsh acids or pressure washing, which can void your shingle warranty and strip protective granules.

    What safety procedures do we follow when cleaning roofs in Tualatin, OR?

    Our crew works with full personal protective equipment: harness systems, non-slip footwear rated for roof work, gloves, and eye protection. We’re licensed and insured in Oregon, so you’re covered if anything goes wrong. We also protect your landscaping before applying any cleaning solution — plants and shrubs get pre-wetted and rinsed after treatment.

    What experience and qualifications do our roof cleaners have in Tualatin, OR?

    Premium PowerWash has 5+ years of roof and exterior cleaning experience in the Portland metro area, including Tualatin, Tigard, Sherwood, Lake Oswego, and Wilsonville. We’re a licensed Oregon contractor and fully insured. We use ARMA-compliant soft washing methods and stay current on best practices for Pacific Northwest roof conditions — moss-heavy environments require a different approach than dry-climate cleaning, and we’re built for it.