Roof Maintenance
Moss and gunk are hard on Oregon roofs. A little care each year adds years to your roof's life.
Licensed & Insured
In the Willamette Valley, moss is the number-one thing that shortens a roof's life. Our long, damp, gray winters are perfect for it, and once it takes hold on a shady, north-facing slope it spreads fast. Moss is not just ugly. It acts like a sponge, holding water against your shingles long after the rain stops. That trapped moisture lifts the shingle edges, breaks down the protective granules, and works its way underneath, which is how a moss problem quietly turns into a leak.
What roof maintenance with us looks like
We do not pressure-wash. Blasting a roof strips the granules right off the shingles and takes years off its life. Instead, we clear the moss and debris gently, then apply a moss treatment that keeps it from coming back as quickly. While we are up there, we also pull the needles and leaves out of your valleys and gutters, because that packed debris is what dams up water and feeds the next round of moss.
We catch the small stuff while we're up there
A maintenance visit is the cheapest time to catch trouble. We look over the whole roof, flashing, vents, valleys, and any lifted or cracked shingles, and fix the small problems on the spot, before a wet winter turns them into an attic leak. A clean, maintained roof simply lasts longer, and it is far cheaper to keep a roof healthy than to replace one that moss and neglect wore out early.
How often Oregon roofs need it
For most homes here, a check once a year keeps moss in check and the gutters draining. Under heavy tree cover, tall firs and maples dropping needles all season, twice a year is smarter. We will tell you honestly what your roof needs based on what we actually see up there.
Why choose Sealed Roofing?
- Financing Available.
- Licensed and insured, license CCB #261915.
- After-hours help for active roof leaks. Emergency Leak Help, After-hours, for active leaks.
- You get the full price in plain words before we touch a tool.
Where we offer roof maintenance
Sealed Roofing handles roof maintenance from Hillsboro across the towns below. Each town page covers what is different about the work there.
- what we build for Beaverton homes
- roof maintenance for Portland
- Salem projects
- Roof Maintenance in Gresham
See what neighbors say, Roof Maintenance reviews on Google.
From our blog: How Much Does Roof Moss Removal Cost? (2026 Guide).
Related services
- Roof Replacement: When your roof is too old or worn to fix, we put on a brand-new one, built to keep Oregon rain out for years.
- Roof Repair: Small roof problems turn into big ones fast. We find the real issue and fix it before it costs you more.
- Roof Leak Repair: Most roof leaks hide in your attic long before you ever see a stain. We find the leak and stop the water.
See all of our roofing services, or head back to the Sealed Roofing home page.
Cost of roof maintenance in Hillsboro
What moves the price:
- Roof size and pitch
- How much moss and debris has built up
- Tree cover over the roof
- One-time visit or a yearly plan
Every job is different, so we give you an exact price up front, and you approve it before any work starts.
How it works
Roof Maintenance: how it works
Get your free estimate
Call or request a quote online. We find the real cause and give you the full price before any work starts.
We schedule your job
Pick a time that works for you. We show up when we say we will and keep you in the loop the whole way.
Tested before we leave
We test the work before we leave and walk you through what we did.
Get a free estimate for roof maintenance
Call now or request a free estimate. After-hours help for active roof leaks. Emergency service available.
Licensed & Insured · No obligation
Where we work
Hillsboro, OR area · View us on Google
FAQ
Roof Maintenance, common questions
Why is moss so bad for my roof?
Moss holds water against your shingles like a sponge, long after the rain stops. That constant moisture lifts the shingle edges, wears off the protective granules, and eventually works underneath, turning a cosmetic problem into a leak. In our wet, shady climate it grows fast, so it is worth staying ahead of.
Do you pressure-wash the moss off?
No, and we would steer you away from anyone who does. Pressure-washing blasts the granules off your shingles and can take years off the roof's life. We clear the moss gently and apply a treatment that slows it from coming back, so the roof stays protected.
How often should I have my roof maintained?
For most Oregon homes, once a year keeps moss controlled and the gutters draining. If your roof sits under heavy tree cover, twice a year is smarter. We will give you an honest recommendation based on what your roof actually looks like.
Will moss treatment really stop it from coming back?
It slows it down a lot, but nothing stops moss forever in our climate, anywhere a roof stays shaded and damp, moss will eventually return. That is why a yearly clean and treat is the real answer. We can also point out where more sun or airflow would help.
Need roof maintenance?
Call now or request a free estimate. After-hours help for active roof leaks. Emergency service available.
After-hours help for active roof leaks · Licensed and insured, license CCB #261915 · No obligation