Home › Recent Projects › SasWash, Gutter Clean-Out, and Roof Anchor in Bellevue, WA
Squatch Roofing treated a mossy three-tab asphalt shingle roof in Bellevue, WA 98008 with its SasWash roof treatment on July 10, 2026. The same visit included a gutter clean-out, a roof tune-up, and the installation of a permanent roof anchor at the ridge. The June 20 inspection found moss in the shingle seams across the roof, exposed nail heads, a split shingle, and a box vent sitting in the moss. The crew handled all four line items in one day.
| Location | Bellevue, WA 98008 |
|---|---|
| Service | SasWash roof treatment, gutter cleaning, roof tune-up, and roof anchor installation |
| Property | Home with a three-tab asphalt shingle roof, hips and a ridge, a chimney, and tall conifers along the lot |
| Roof size | Priced on the medium tune-up tier, which covers roofs up to 40 squares; the exact square count is not recorded |
| Inspection | June 20, 2026: attic, roof surface, penetrations, an eave, and a downspout; 36 photos on file |
| Existing roof | Three-tab asphalt shingles; moss in the seams on every slope photographed, exposed nail heads, a split shingle, and a box vent surrounded by moss |
| Decking | Board decking, seen from the attic, with a wood block fastened over an old opening |
| Tune-up work | Medium-tier tune-up; the July 10 photos show the plumbing vent flashings and the sealed cap shingle fasteners at the ridge |
| Roof anchor | Permanent D-ring roof anchor installed at the ridge, under cap shingles with sealed fasteners |
| Project duration | One visit, July 10, 2026 |
| Project investment range | $2,900 to $4,500 |
What Squatch Found on the Inspection
The inspection on June 20, 2026 produced 36 photos. It started in the attic, moved across the roof, and finished at the eaves and a downspout. The inspector marked the problem spots on the roof in blue paint before photographing them.
- Attic: board decking over the rafters. In one bay, a wood block had been fastened over an old opening in the boards.
- Moss: moss growing in the seams between the three-tab shingles, with tall conifers standing over the lot.
- Fasteners: two exposed nail heads in one shingle, circled in paint, with needle debris collected beside them.
- Shingle damage: one shingle split along its length, next to a damaged spot the inspector outlined.
- Vent: a box vent with moss grown in around its flashing.
What It Meant and What We Recommended
Everything the inspection marked was a maintenance item: moss holding water in the seams, fasteners working up through the shingles, one split shingle, and a vent flashing buried in growth. None of it pointed to a roof at the end of its life. Squatch quoted four line items to handle it in one visit: the SasWash treatment for the moss, a gutter cleaning, a roof tune-up at the medium tier, and a permanent roof anchor. The homeowner approved all four.
Squatch does not pressure wash roofs. Pressure washing strips granules from asphalt shingles. The SasWash process removes the bulk of the moss by hand and then applies a softwash formula at low pressure.
How the Project Was Completed
The crew did all of it on July 10, 2026, and 15 photos from that day document the roof work.
The roof anchor. A permanent D-ring anchor went in at the ridge, fastened under the cap shingles, and the fastener heads on the caps over it were sealed. A permanent anchor gives a crew a fixed tie-off point on the roof for later visits. The job file does not record why the homeowner chose to add one.
The tune-up. The tune-up is priced at the medium tier, which covers roofs up to 40 squares. The July 10 photos show the plumbing vent flashings and the sealed fasteners on the cap shingles at the ridge. The job file does not itemize every spot the crew sealed.
The SasWash treatment and gutters. Squatch’s SasWash process runs in a set order: blow off large debris, hand-brush the bulk of the moss, then apply the softwash formula across the full roof at low pressure. The gutter cleaning is billed as its own line on this invoice. The July 10 photo log covers the roof surface, not the gutters, so there are no gutter photos from the cleaning.
The Finished Result
The completion photos were taken right after the treatment went on. They show the seams clear of the moss lines from June 20 on each slope and hip, with the shingle surface still drying unevenly, which is why the roof reads in light and dark patches. The anchor is in at the ridge, with the cap shingle fasteners over it sealed.
What This Project Cost
Project investment range: $2,900 to $4,500. This range reflects the scope of this completed project and is not a current quote. It is anchored on the final invoice total, which includes Washington sales tax.
This is four services on one invoice, which is why the range sits well above a cleaning alone. The SasWash treatment is priced by roof area and growth, the tune-up is priced at the medium tier (up to 40 squares), and the gutter cleaning and roof anchor are separate lines. A homeowner who only needed the moss treatment would land well below this range. For comparison, a SasWash-only job on a single-story Seattle roof ran $1,800 to $2,800.
What Homeowners With Similar Roofs Should Know
Put the small items on the same visit. The exposed nails, the split shingle, and the mossy vent flashing were all found on the June 20 inspection, and the tune-up went on the same day as the cleaning. One ladder setup covered the tune-up, the anchor, the gutters, and the moss.
Ask about a permanent anchor if your roof gets regular service. This homeowner added one during a cleaning visit. Once it is in, it stays at the ridge under the cap shingles for the next visit.
Treatment does not move the trees. The inspection photos show tall conifers over this lot and needle debris collected on the roof. The SasWash treatment cleared the growth from the seams; the shade and needle fall are still there after it.
Related questions
How much did this roof cleaning in Bellevue cost?
The project investment range for this completed job was $2,900 to $4,500 for a SasWash treatment, gutter cleaning, medium-tier roof tune-up, and a permanent roof anchor on a three-tab shingle roof. The range reflects this project’s scope and is not a current quote.
What is a permanent roof anchor?
It is a fixed tie-off point for fall protection. On this roof it is a D-ring anchor fastened at the ridge under the cap shingles, installed July 10, 2026, with the cap shingle fasteners over it sealed.
Was the roof pressure washed?
No. Squatch does not pressure wash roofs because it strips granules from asphalt shingles. The SasWash process removes the bulk of the moss by hand and applies a softwash formula at low pressure.
What did the inspection find besides moss?
Exposed nail heads in the shingles, one shingle split along its length, a box vent with moss grown in around its flashing, and, in the attic, board decking with a wood block fastened over an old opening.
How long did the work take?
One visit. The inspection was June 20, 2026, and the SasWash treatment, gutter cleaning, tune-up, and roof anchor were all completed on July 10, 2026.
Have a roof with similar symptoms?
If moss is filling the seams of your shingles or nail heads are working up through them, Squatch Roofing can run a free 21-point inspection, show you the photos, and tell you whether a SasWash roof treatment and gutter cleaning cover it. Squatch serves Bellevue, the Eastside, and the greater Seattle area. Schedule an inspection or call (425) 292-8327.
This project documentation was prepared by Squatch Roofing from the job records and photos from our crew, September 2026. Technical review by Ben Metsker, Manager, Squatch Roofing.
