Your Roof Cleaning Experts in Tigard, OR

Tigard gets over 37 inches of rain a year — and that moisture, combined with shade from Bull Mountain’s Douglas firs and the Fanno Creek greenway, turns your roof into prime moss territory. Left unchecked, moss lifts shingles, traps water, and cuts years off a roof that should last decades.

Premium PowerWash specializes in soft wash roof cleaning for Tigard homeowners. We remove moss, algae, and black streaks without pressure-washing the granules off your shingles — the method your roofing manufacturer actually recommends. Call us at (503) 575-6575 for a free on-site estimate.

Why Tigard Roofs Grow Moss So Fast

The Pacific Northwest climate is ideal for moss — cool temperatures, persistent cloud cover, and regular rainfall give spores everything they need to take hold. In Tigard, mature tree canopy on streets like SW Gaarde and throughout the Bull Mountain neighborhoods keeps roofs shaded for most of the day, which accelerates growth even further.

Moss isn’t just cosmetic. Its root-like structures push under asphalt shingle tabs and pry them up. Once water gets underneath, you’re looking at rot, leaks, and premature replacement — a job that costs $8,000–$20,000 on most Tigard homes. Annual or biennial cleaning costs a fraction of that and keeps your roof performing the way it should.

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 just blasting them off the surface. High-pressure washing drives water under your shingles and strips protective granules — 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 Tigard. After treatment, the 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 Tigard

Roof cleaning is our specialty, but we handle the full picture while we’re up there. Our Tigard services include:

Moss treatment & inhibitor application — kills existing growth and delays regrowth for 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 any areas showing early wear so you can address them before they become 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 Tigard

Premium PowerWash is a family-owned business run by two brothers who live and work in the Portland metro area. We’re fully licensed and insured in Oregon, which matters — if a contractor isn’t insured and something goes wrong on your roof, it’s your homeowner’s policy that pays.

We show up on time, we do what we said we’d do, and we don’t leave until the work meets our standard. No subcontractors, no surprises. If something doesn’t look right after we leave, call us and we come back.

Get a Free Roof Cleaning Estimate in Tigard

Moss doesn’t stop growing while you wait. If you’re seeing green patches, black streaks, or lifted shingle edges on your Tigard 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.

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 Tigard, Beaverton, Lake Oswego, Tualatin, and the surrounding neighborhoods.

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 Tigard, 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 Tigard, OR?

    We offer soft wash roof cleaning, moss and algae treatment, moss inhibitor application, and gutter cleaning for residential and commercial properties in Tigard. 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 Tigard, OR?

    In Tigard’s climate, most homeowners need a roof cleaning every 1 to 2 years. Homes under heavy tree cover — particularly those near Fanno Creek or on Bull Mountain’s shaded slopes — tend to need it annually. 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 Tigard, OR?

    We use a biodegradable soft wash solution — a diluted sodium hypochlorite blend combined 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 Tigard, 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 Tigard, OR?

    Premium PowerWash has 5+ years of roof and exterior cleaning experience in the Portland metro area, including Tigard, Beaverton, Tualatin, and Lake Oswego. 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.