Roofing Contractor in Sammamish, WA

Sammamish sits on the plateau above the east side of Lake Sammamish, about fifteen miles from the shop. It has the highest home values of anywhere we work, and some of the largest and most complicated roofs.

Roofing work in the Sammamish, Washington area
5.0 stars across 71 Google reviewsBBB accredited, A+ ratingCertainTeed ShingleMaster™ PROLicensed, bonded and insured — BRIXTWR790QN CertainTeed ShingleMaster certified contractor BBB Accredited Business with an A plus rating

Large roofs and heavy tree cover on the Sammamish plateau

Two things define Sammamish roofs: they are big, and they are under trees. The plateau kept much of its mature evergreen cover through development, so large expensive homes sit beneath large old conifers. That is excellent for the neighborhood and hard on the roof.

Heavy shade means moss, and it means constant needle load into gutters and valleys. On a roof with a lot of valleys — which describes most large houses here — packed needles dam the valley and push water sideways under the shingles. That is the most common source of leaks we trace on the plateau.

Size matters for the practical side too. These are large roofs, so a replacement is a bigger job with more material and more days on site than a comparable house closer in. We would rather tell you that at the estimate than surprise you with it.

What we typically find on Sammamish roofs

  • Needles packed into valleys, damming water sideways under the shingles
  • Heavy shade moss on plateau roofs kept under mature evergreens
  • Large, complex roofs where the job is simply bigger than people expect
  • Late-1990s onward construction now arriving at replacement age together

Sammamish housing and roof age

Sammamish covers about 18,100 households at an average value near $996,000, the highest in our service area. Most of the stock went up from the late 1990s onward, which puts a large block of it into roof-replacement range now.

Roofing services we offer in Sammamish

ServiceWhat it coversTypical range
Roof ReplacementA full tear-off down to the deck, a rebuilt system, and the three-layer warranty.$12,000–$20,000
Roof Repair and Leak RepairFind the actual source of the leak, fix that, and tell you honestly whether the roof still has life in it.$500–$1,500
Roof Cleaning and Moss RemovalSoft washing that lifts the growth without stripping the granules off your shingles.$300–$1,000
Gutter InstallationNew gutters and downspouts sized for Puget Sound rain, installed to move water away from the house.$500–$3,500
Skylight InstallationNew skylights flashed into the roof system properly, so the hole in your roof stays watertight.
Skylight RepairLeaking skylights re-flashed or replaced — usually a flashing problem, not the glass.

Ranges are what this work typically costs. Your number comes in a written estimate after the inspection, not before.

Free roof inspection in Sammamish

Tell us what is going on and Daniel will get back to you.

★★★★★ 5.0 from 71 reviews · BBB A+ · licensed & insured

Prefer to talk? Call Daniel on (206) 888-3948 · Mon–Fri, 7:00am–4:00pm

Do you need a permit to replace a roof in Sammamish?

Sammamish sits in King County, and the rule there is specific.

A full roof replacement requires a building permit. Washington’s state building code sets the requirement and each city’s building department enforces it, so the application goes to your city rather than to the county.

That is the King County position, and it governs unincorporated areas. Sammamish adopts its own building code and can be stricter than the county, so confirm with the city’s building department — or let us. We pull whatever the job needs as part of the work, and in both Snohomish and Pierce counties the exemption ends the moment any roof sheathing has to be replaced, which is not knowable until the old roof is off.

Source: kingcounty.gov — permits and inspections

Permit rules in all four counties

Where we cover in Sammamish

CountyKing County
ZIP codes we cover98074, 98075
From our Bothell shop15.1 miles
Households in these ZIPs18,122
Free inspectionsYes, no obligation

Nearby cities we also serve

Why Sammamish homeowners choose us

  • Daniel does the estimate himself. There is no sales team, so the person who looks at your roof is the person accountable for the work.
  • Your shingles covered for 50 years, our workmanship for 30 — and CertainTeed guarantees our installation alongside us for the first 15.
  • 5.0 stars across 71 Google reviews and a BBB A+ rating since December 2023.
  • Licensed, bonded and insured — Washington license BRIXTWR790QN, $1,000,000 general liability.

Read the full warranty

Before you get quotes in Sammamish

Roofing questions from Sammamish homeowners

Above our typical $12,000 to $20,000 range in many cases, simply because there is more roof and more complexity. You get an actual number in writing after the inspection rather than a guess over the phone.

No. Trim overhanging limbs where you can, keep the gutters and valleys clear, and expect to have the roof cleaned more often than an open site would need. That is the trade, and it is a manageable one.

Almost always debris. Needles pack into the valley, dam it, and force water sideways underneath the shingles. Keeping valleys clear does more for a plateau roof than almost anything else.

★★★★★

“The owner was really attentive to my needs. Price was competitive and the crew was professional and friendly.”

Casey L.Roof replacement
★★★★★

“The service and knowledge of roofing options was great in helping us make our decision on material for our roof. They also delivered on time and budget.”

Eric LarsonRoof replacement
★★★★★

“We worked directly with the owner, and he was excellent when explaining the whole process. The crew was very efficient and very respectful during the job. They did a great job cleaning up and even did a magnetic sweep for loose nails.”

William W.Roof replacement

Get a free roof inspection in Sammamish

No cost and no obligation. Daniel looks at the whole system and leaves you a written estimate to keep.

Schedule your free inspection (206) 888-3948 Mon–Fri, 7:00am–4:00pm
Call (206) 888-3948 Free inspection
Free roof inspection, no obligation Daniel does it himself · Mon–Fri, 7:00am–4:00pm (206) 888-3948 Schedule your free inspection