Is your roof covered in unsightly dark streaks or moss?

For homeowners in Hillsboro and across Washington County, professional soft wash roof cleaning is the safest and most effective way to remove Pacific Northwest moss and algae without damaging your shingles. Typically, a professional cleaning is recommended every 18 to 24 months to prevent structural decay and maximize your home's curb appeal.
Sometimes properties are going to need a touch up after an initial cleaning though. For example if it's been covered in lichen, a follow-up clean will be needed to root-out that algae. We talk about lichen here.
Why Hillsboro Homeowners Choose Soft Washing Over Pressure Washing
While it’s tempting to grab a pressure washer to blast away moss, high-pressure water is the leading cause of premature roof failure in Oregon.
- Protecting Your Shingles: High pressure can strip away the protective granules on asphalt shingles, which are vital for UV protection and fire resistance.
- The Soft Wash Advantage: We use a low-pressure chemical treatment—often called soft washing—that kills moss, lichen, and algae at the root.
- Longer Lasting Results: Unlike pressure washing, which only removes the surface growth, soft washing treats the biological spores, ensuring your roof stays cleaner for much longer in our damp, humid climate.
The Unique Challenges of Roof Maintenance in Washington County
Living in the Pacific Northwest means our roofs face unique threats. The constant moisture, combined with shade from our beautiful Douglas Firs and Maples, creates a perfect breeding ground for Gloeocapsa Magma (the bacteria that causes black streaks) and heavy moss.
If left untreated, this moss acts like a sponge, trapping moisture against your roof. In the winter, this moisture freezes and expands, cracking shingles and leading to costly leaks. Regular Hillsboro roof washing isn't just about looks—it’s about protecting your largest investment from the Oregon elements.

Hillsboro Roof Cleaning FAQ
What is the best time of year for roof cleaning in Hillsboro? While we clean roofs year-round, the best time is often late spring or early autumn. This allows us to treat the moss before the heavy winter rains or after the spring growth spurt, ensuring your roof is protected during the harshest weather.
How much does professional roof washing cost in Washington County? Pricing varies based on the size of the home, the pitch of the roof, and the extent of the moss growth. Most professional cleanings in the Hillsboro area range between $300 and $800. We provide free, on-site inspections to give you an exact quote.
Does your service include a moss-growth guarantee? Yes. Because our soft wash process kills moss at the biological level rather than just rinsing it off, we offer a satisfaction guarantee. Our treatments are designed to keep your roof moss-free for significantly longer than traditional cleaning methods.

Get a Free Hillsboro Roof Inspection Today
Don't let moss and algae devalue your home. Worth It Exterior Cleaning provides expert, safe, and reliable soft wash services tailored to the specific needs of Hillsboro properties.
Click Here to Get Your Price or call us at 503-941-0862 directly to schedule your service.
Here's what some of our customers had to say about our work:
Lane P.
5 stars
Great price
Fast response time, friendly crew, and fantastic work removing moss off my roof. I look forward to hiring for my next project.
Doug M56
5 stars
Reasonable price
roof treatment and gutter service. great communication and on time ready to go.
The work was detailed and they did a clean up on all areas. Will use them again in the future.
Services
Roof cleaning
5 stars
Great price
Worth It was absolutely amazing. I will recommend them to everyone! Best roof and pressure washing service I have ever received!
Services
Power/pressure washing, Soft wash cleaning, Roof cleaning


