Moss growing on north-facing shingles
We remove the moss by hand, treat the surface with an inhibitor, and check the shingles underneath for damage. If tabs are lifted, we reseal or replace them with matching GAF or Owens Corning material.
Moss pulled, leaks sealed, and your roof tested before we leave
Roof Moss Removal and Leak Treatment Aberdeen WA Done Right
Roof moss removal and leak treatment Aberdeen WA is what we do every week on the wet side of Grays Harbor County. If moss is creeping up your shingles and you have a brown ring spreading on the ceiling, we pull the growth, find the water path, and seal it. We work on asphalt shingles, metal panels, and slate across Aberdeen, WA.
Careful work. Honest options.
About this service
What Roof Moss Removal and Leak Treatment Aberdeen WA Covers
Roof moss removal and leak treatment Aberdeen WA is the two-part job of killing and pulling moss off your roof, then repairing the water damage that moss caused. Moss holds rainwater against the shingle like a wet sponge. That moisture works under the tabs, rots the roofing felt, and finds every gap in your flashing. We scrape, treat, and seal in one visit so the leak does not come back next storm.
Aberdeen gets roughly 70 inches of rain a year, and roofs here stay damp from October through May. That is perfect moss weather. We see it most on north-facing slopes and under tree cover in neighborhoods like Rosemount and Ferryhill. If you have been searching roof moss removal near me Aberdeen, the fix is a full moss removal for roof leaks Aberdeen WA treatment, not just a spray-and-forget.
- ✓ Stop Active Leaks Fast
- ✓ Add Years To Your Roof
- ✓ Lower Energy And Repair Bills
- ✓ Protect Gutters And Downpipes
What's included
What's Included In Moss Removal And Leak Treatment
Every job starts with an inspection and ends with a water test. Here is what you get as standard, and what we quote separately if your roof needs it.
✓
Full Roof Inspection
We walk or drone the roof, photograph problem areas, and take moisture readings in the attic. You see what we see before any work starts. This is included on every job, no charge.
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Hand Moss Removal
We scrape moss off by hand and with soft-bristle tools, never a pressure washer. Debris is bagged and removed. On a typical Aberdeen ranch home this takes two to three hours.
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Leak Point Repair
Flashing, pipe boots, valleys, and vent seals get repaired or replaced as needed. We use GAF, Owens Corning, Henry Company, and Sika materials matched to your existing roof.
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Hose Test Verification
We run water over every repaired area for 15 minutes and watch from inside. If it stays dry, the repair is done. If not, we keep working until it is. No repair leaves without passing this test.
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Moss Inhibitor Treatment
After removal, we treat the roof surface with a moss inhibitor. It slows regrowth for 12 to 18 months in Aberdeen's climate. Reapplication is part of our yearly maintenance plan.
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Yard And Gutter Cleanup
We magnet-sweep the yard for nails and clear moss debris from gutters and downpipes. You should not be able to tell we were there, except that the roof is clean and the leak is gone.
How it works
How Our Moss And Leak Process Works
01
Phone Assessment
You call, we ask three questions: where is the stain, how old is the roof, and is the moss on the north slope. That tells us whether to bring a ladder stabilizer and pitch hoist for a steep pitch or a drone for a tall two-story. Most calls take under 10 minutes.
02
On-Site Inspection
We walk the roof and check the flashing, valleys, pipe boots, and skylight seals. A moisture meter and infrared thermal camera confirm where water is actually sitting. You get photos of the problem areas before any work starts, and pricing is quoted upfront.
03
Moss Removal
We scrape the moss off by hand and with soft-bristle tools, never a pressure washer that tears shingle granules. Debris goes into bags, not your gutters. On a typical 1,500 square foot ranch, this step runs two to three hours.
04
Leak Treatment And Repair
We replace cracked pipe boots, reseal chimney flashing with Henry Company or Sika sealant, and patch any lifted shingles with matching GAF or Owens Corning material. Ice and water shield goes under repairs near valleys where water concentrates.
05
Water Test And Cleanup
We run a hose test over the repaired area for 15 minutes while watching from inside the attic. If it stays dry, we treat the remaining roof surface with a moss inhibitor and magnet-sweep the yard for nails. You get a written summary of what was fixed.
Tools & methods
Tools And Methods We Use
Purpose-built equipment, used by trained technicians — so the job is done accurately the first time.
Moisture Meter
Reads water content in attic decking and insulation so we know how far a leak has spread. It tells us whether the damage is surface-level or structural.
Infrared Thermal Camera
Finds hidden moisture behind drywall and under shingles by temperature difference. It traces leaks that a visual inspection would miss entirely.
Roof Inspection Drone
Photographs steep and tall roofs safely. We use it on two-story Aberdeen homes where walking the roof adds risk without adding information.
Pitch Hoist And Ladder Stabilizer
Keeps our crew safe on steep pitches and prevents ladder damage to gutters and fascia. Safety gear is not optional on a wet Aberdeen roof.
Hose Test Kit
Delivers controlled water over a repaired area so we can confirm the fix. Every leak repair gets a 15-minute hose test before we leave.
Caulking Gun And Roof Sealant
Applies Henry Company, Sika, and Tremco sealants at flashing, valleys, and penetrations. Correct application is what makes a seal last through winter.
Pry Bar And Utility Knife
Lifts shingles and cuts material cleanly during repairs. Clean cuts mean the patch sits flat and the repair blends with the rest of the roof.
Real results
Before and after.
North Slope Moss And Ceiling Stain
Before
A Rosemount homeowner had thick moss across the north slope and a brown stain spreading on the bedroom ceiling. Two prior roofers had sealed the wrong spot and the stain kept growing after every storm.
After
We removed the moss, traced the leak to a cracked pipe boot and failed step flashing, and replaced both. A 15-minute hose test confirmed the fix. Six months later the ceiling was still dry and the moss had not returned.
Clogged Gutters And Fascia Rot
Before
A Ferryhill rental had moss washing into gutters every storm, overflowing under the fascia and soaking the foundation. The landlord was paying for emergency gutter cleanouts twice a year.
After
We removed the moss from all four roof sections, cleared and resealed the gutters, replaced two rotted fascia boards, and replaced failed downpipe connectors. Water now discharges 6 feet from the foundation.
Storm-Damaged Shingles After Moss Weakened The Roof
Before
A windstorm tore loose 14 shingles on a moss-weakened section of an Aberdeen City Centre roof. Water was dripping into the hallway and the homeowner was catching it in a bucket.
After
We tarped the roof within two hours, then returned to remove the moss, replace the shingles with matching GAF material, and reseal the flashing. The interior stayed dry through the next storm.
Problems we solve
Problems We Solve With Moss And Leak Treatment
Moss causes more than a green roof. Here are the problems Aberdeen homeowners call us about most, and how we fix them.
Ask a pro →↗
Ceiling stains that keep coming back
We trace the water path with a moisture meter and infrared thermal camera, repair the actual entry point, and hose-test it. That stops the stain from returning after the next storm.
Clogged gutters from moss debris
We clear the moss debris, reseal leaking gutter joints, check downpipe connectors, and confirm water discharges away from the house. It is a small fix that prevents a big repair.
Cracked pipe boots and failed vent seals
We replace the boot, reseal the base with Sika or Henry Company sealant, and water-test the vent. Most vent repairs are done in under an hour.
Proof you can check
Licensed, Insured, And Warrantied
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Washington State Roofing Contractor LicenseWashington State Department of Labor & Industries
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EPA Lead-Safe Certified FirmU.S. Environmental Protection Agency
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GAF Master Elite CertificationGAF Materials Corporation
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Owens Corning Preferred ContractorOwens Corning
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OSHA 10 Construction SafetyOccupational Safety and Health Administration
Customer reviews
What Aberdeen Customers Say
★★★★★
“We had a brown stain spreading across the bedroom ceiling and could not figure out where it came from. The crew traced it to moss-packed flashing on the north slope. They pulled the moss, replaced two pipe boots, and hose-tested everything. Three months of Aberdeen rain later and the ceiling is still dry. Fair price and they cleaned up the yard.”
KM
Karen M.Homeowner, Rosemount
✓ Verified“
★★★★★
“I manage four rentals near Ferryhill and moss is a constant fight. These guys treated all four roofs in two days and set me up on a yearly check. The cost was less than one emergency ceiling repair would have been. They send photos after every visit so I do not have to climb up there myself.”
DR
Dave R.Landlord, Ferryhill
✓ Verified★★★★★
“Called on a Sunday night with water dripping into a bucket in the hallway. They had a tarp on the roof within two hours and came back Monday to do the full moss removal and leak repair. The invoice matched the quote exactly. I have already recommended them to two neighbors on my block.”
ST
Susan T.Homeowner, Aberdeen City Centre
✓ VerifiedMost Aberdeen jobs run $450 to $1,200 in 2026, depending on roof size, pitch, and how much repair the leak needs. A simple moss removal on a single-story ranch starts around $450. Add flashing repair, pipe boot replacement, or steep-pitch access and you move toward the top of the range. We quote upfront after the inspection.
You scrape the moss off by hand, never pressure wash, then treat the surface with a moss inhibitor and repair the leak points the moss damaged. The leak is usually at flashing, valleys, or pipe boots, not the moss itself. We handle all three steps in one visit and hose-test the repair before leaving.
Yes. Moss holds water against the shingle and roofing felt, which rots the underlayment and lifts shingle tabs. Once the felt fails, water travels sideways and shows up as a ceiling stain far from the actual entry point. Aberdeen's 70 inches of annual rain makes that process faster here than in drier parts of Washington.
We do, across Aberdeen and Grays Harbor County, including Rosemount, Ferryhill, and the 98520 ZIP. We are a licensed Washington State Roofing Contractor with EPA Lead-Safe certification, and we handle both the moss removal and the leak repair. Call +13608991171 and we will schedule an inspection.
More services
Related Services
Roof Leak RepairOnce we pull the moss, we repair the leak it caused. That means new flashing, sealed pipe boots, and patched shingles. We hose-test every repair so you know the water path is closed before we pack up.Explore →
Emergency Roof Leak RepairIf moss has been holding water for months, the leak can open up fast during a storm. We run 24/7 and keep tarps on the truck. Call and we will stabilize the roof the same day, then schedule the permanent repair.Explore →
Roof Leak DetectionMoss hides leak entry points. We use a moisture meter and infrared thermal camera to trace water back to the real source, which is often 10 feet from the ceiling stain. That saves you from paying for the wrong repair twice.Explore →
Flat Roof Leak RepairMoss and standing water are a bad pair on flat roofs. We clear the growth, check for ponding, and repair seams and membrane damage with Duro-Last or Carlisle SynTec materials. Then we confirm drainage is moving water off the roof.Explore →
Slate Roof Leak RepairSlate roofs in older Aberdeen homes collect moss in the laps between tiles. We remove it carefully, replace cracked slates, and reseal the flashing. Slate needs a light touch, and we never walk it with heavy equipment.Explore →
Tile Roof Leak RepairClay and concrete tile roofs trap moss in the channels. We clear it, check the underlayment beneath, and replace broken tiles. If the underlayment has failed from years of trapped moisture, we repair that too, not just the visible tile.Explore →
Metal Roof Leak RepairMoss grows along metal panel seams and around fasteners. We remove it, reseal the seams with Tremco or Sika products, and replace failed fasteners with neoprene washers. Metal roofs respond well to this treatment and often last decades longer.Explore →
Shingle Roof Leak RepairAsphalt shingles are the most common roof in Aberdeen, and moss damages them fastest. We pull the moss, replace lifted or missing shingles with matching GAF or Owens Corning material, and seal the flashing. Most repairs are done in one visit.Explore → Ready when you are
Book Roof Moss Removal and Leak Treatment Aberdeen WA Today
Moss does not stop growing and leaks do not seal themselves. We are licensed, insured, and we answer the phone 24/7. Call now for a same-day inspection and an upfront price on your roof moss removal and leak treatment Aberdeen WA.
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Request an appointment
Contact Aberdeen Roof Leak Repair Pros
Call +13608991171 and tell us where the water is showing up. We answer the phone, ask the right questions and give you a real arrival window. Active leaks get priority, and most addresses inside 98520 see a crew the same day. You can also email [email protected] with photos of the stain or the roof.