Fast, Reliable Roof Replacement & Installation Across Kenmore
Roof replacement in Kenmore, WA typically runs $12,000-$28,000 for a standard asphalt shingle job on a 2,000-square-foot home, with most projects completed in 2-4 days once materials arrive. Our Roof Replacement & Installation crews are on Kenmore roofs year-round, from the lakeside streets near the Sammamish River mouth to the hillside ramblers above 68th Avenue NE. We carry the full GAF, CertainTeed, and Owens Corning lines in our Seattle warehouse, so Kenmore homeowners aren’t waiting weeks for algae-resistant shingles or wind-rated underlayment. Call (866) 850-9676 - a live person answers, 24 hours a day.
We’ve been climbing Kenmore roofs since 2016. That matters here more than in most suburbs. Kenmore sits where the Sammamish River delta meets the northern tip of Lake Washington, and that geography creates problems you won’t find in Bothell or Woodinville. The lake-edge humidity never truly breaks, even in August. North-facing planes under mature Douglas firs stay damp for months. Step flashing corrodes years ahead of schedule. We’ve learned to account for all of it before we drive the first nail.
Why Ridgeline Roofing Co. of Seattle Is Kenmore’s Preferred Roof Replacement & Installation Company
Neil Cavanaugh founded Ridgeline Roofing Co. in 1984, and we’ve spent four decades building a reputation in communities we actually live in. We’re not storm-chasers who blow through town after a wind event. We hire local crews, train apprentices into journeymen, and plan to be here in thirty years. Kenmore homeowners know our trucks. They’ve seen us on 60th Avenue NE, on the lakefront streets near Saint Edward State Park, on the hillside homes above Juanita Drive.
Our 90-Day Done Right Promise is written, not spoken. If something isn’t right, we come back and make it right. No paperwork, no arguing, no runaround. That promise has held up through four decades of Puget Sound weather, and it still does.
A live person answers every call, 24/7. Nights, weekends, the middle of a November storm - you’ll talk to someone who can dispatch a crew, not a voicemail tree telling you to call back Monday. For Kenmore, that means response times typically under 90 minutes when you’ve got active water coming in.
Our technicians are background-checked and uniformed. They photograph every inspection from your actual roof, not the driveway. You’ll see what we see: corroded step flashing, lifted shingle edges, soft decking under the moss. No scary speeches. Just facts, photos, and an upfront price that matches the final invoice.
Our Roof Replacement & Installation Services in Kenmore
Full Roof Replacement
Most Kenmore homes we’re replacing now have second-generation 3-tab composition shingles installed 20-25 years ago. They were adequate for the era, but Kenmore’s humid microclimate has aged them faster than their rated lifespan. We strip to deck, inspect every sheet - especially on lakeside streets near the Sammamish River mouth, where we’ve found rot 5-8 years ahead of inland homes - and install complete systems: ice-and-water shield at eaves and valleys, synthetic underlayment, and shingles rated for the wind loads these lakefront properties see during fall storm season.
New Construction Roofing
Building new in Kenmore means planning for moisture from day one. We spec full ice-and-water shield on north-facing planes, adequate soffit ventilation to combat delta humidity, and algae-resistant granules as standard - not an upgrade. Whether it’s a custom build above the 98028 hillside or infill near the Burke-Gilman Trail, we coordinate with framers and inspectors to keep the schedule moving.
Asphalt Shingle Installation
Asphalt shingles remain the right choice for most Kenmore homes, but material selection matters enormously here. Standard 3-tab shingles in this microclimate collect moss, lose granules, and delaminate faster than rated. We typically recommend architectural laminate shingles with StainGuard or similar algae-resistant technology - GAF Timberline HDZ, CertainTeed Landmark PRO, or Owens Corning Duration. On a lakeside street near the Sammamish River mouth, we replaced a 20-year-old 3-tab composition roof on a 1960s rambler where the lake-edge humidity had rotted the step flashing and fascia boards a full 7 years ahead of schedule. We installed GAF Timberline HDZ shingles with algae-resistant granules and upgraded all flashing to 26-gauge galvanized steel, then reinforced the decking in the north-facing sections most prone to moss colonization.
Metal Roofing
For Kenmore homeowners staying put for the long haul, standing-seam metal eliminates the moss and algae cycle entirely. We install 24-gauge steel with Kynar 500 finishes in profiles that shed the heavy rainfall this basin receives. Metal runs $22,000-$42,000 for a typical Kenmore home, but the 40-70 year lifespan changes the math for owners who never want to reroof again.
Tile Roofing
Concrete and clay tile suit the heavier structural frames in some Kenmore hillside builds. We install Boral and Eagle products with proper batten systems and valley flashings rated for our rainfall volumes. Tile’s weight requires engineering verification - we handle that in-house, including permit coordination with King County.
Flat Roofing
Low-slope additions, carports, and mid-century modern designs in Kenmore need specialized flat systems. We install TPO, modified bitumen, and built-up roofing with tapered insulation to ensure positive drainage - critical where delta humidity already works against you. Every flat roof we do in 98028 gets a full flood test before we sign off.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Kenmore
We’re authorized installers for seven manufacturer lines: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Kenmore, we stock GAF Timberline HDZ with StainGuard, CertainTeed’s NorthGate for impact resistance, and Owens Corning Duration with SureNail technology. Our Seattle warehouse keeps these moving to Kenmore jobs without the delays that leave homeowners tarped through multiple storms. We don’t substitute materials. The shingle we spec is the shingle we nail.
Common Roof Replacement & Installation Problems We See in Kenmore Homes
- Corroded step flashing and fascia rot on lakeside streets. Wind-driven rain during fall storms finds weak points where step flashing has corroded from lake-edge humidity, causing interior leaks that worsen with every sustained wind event. Roofers working lakeside streets near the Sammamish River mouth routinely find that fascia boards, soffit framing, and step flashing corrode or rot a full 5-8 years ahead of comparable homes just a mile uphill - the lake-edge humidity never truly breaks, even in August, and customers on those streets almost always need full deck inspection before any reroof.
- Moss and lichen lifting shingle edges on north-facing planes. North-facing roof planes under mature Douglas firs never fully dry out, leading to moss and lichen colonization that lifts shingle edges and compromises wind resistance. Once the sealant strip breaks, shingles flap in storm gusts and tear off entirely.
- Delaminating second-generation 3-tab shingles. Second-generation 3-tab shingles (installed 20-25 years ago on post-WWII ramblers) delaminate and lose granule adhesion faster in Kenmore’s humid microclimate, reducing the roof’s ability to withstand storm gusts. The fiberglass mat shows through, UV degradation accelerates, and the roof fails structurally before it leaks.
- Inadequate attic ventilation trapping delta moisture. Many 1960s-70s Kenmore homes were built with minimal soffit ventilation. Humid air sits in attics, condenses on nail points, and rots decking from the inside out. We see this on hillside homes above 68th Avenue NE as often as on lakefront properties.
Pricing for Roof Replacement & Installation in Kenmore, WA
These are real numbers for Kenmore’s market in 2025-2026. Your exact quote depends on roof pitch, access, decking condition, and material choice - but you deserve a starting point.
| Service | Typical Range (Kenmore) |
|---|---|
| Asphalt shingle replacement, 2,000 sq ft | $12,000 - $28,000 |
| Architectural laminate upgrade | $15,000 - $32,000 |
| Metal roofing, standing seam | $22,000 - $42,000 |
| Flat roof (TPO/modified bitumen) | $8,000 - $18,000 |
| Tile roofing (concrete/clay) | $25,000 - $55,000 |
| Deck replacement (per sheet, if needed) | $85 - $140 |
| Ice-and-water shield upgrade | $800 - $1,500 |
What moves the needle: lakeside homes near the Sammamish River mouth almost always need more decking replacement than hillside properties. Steep pitches above 6/12 add labor. Multiple layers to tear off add disposal cost. We price all of this upfront - the number on the estimate is the number on the invoice. Call (866) 850-9676 for a free, no-pressure inspection and exact quote.
We Also Serve Cities Near Kenmore
Our crews work the full eastern Lake Washington basin. If you’re in Kenmore, Lake Forest Park, Bothell, Bothell East, or Bothell West, we’re already on roofs in your neighborhood. Same live-answer phones, same 90-Day Done Right Promise, same upfront pricing. The only difference is how we account for your specific microclimate - and we’ve spent 42 years learning those differences.
Serving Kenmore, WA - Our Local Coverage Area
We’re based in the Kenmore area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Roof Replacement & Installation in Kenmore
Kenmore follows the same King County building code wind speed requirement of 85 mph basic wind speed as Bothell and Woodinville, but lakeside homes within a quarter-mile of Lake Washington often benefit from upgraded underlayment and enhanced shingle nailing patterns we specify to handle the sustained fetch winds off the water. Call (866) 850-9676 and we’ll review your specific address against our wind-exposure map.
Inspect within 48 hours, or immediately if you see interior water stains or missing shingles in the yard. Kenmore’s fall storms arrive with wind-driven rain that exploits any lifted edge; the longer you wait, the more water tracks into decking and insulation. We offer free post-storm inspections with photo documentation - call (866) 850-9676 to schedule.
GAF Timberline HDZ with StainGuard, CertainTeed Landmark PRO with algae-resistant granules, and Owens Corning Duration with StreakGuard outperform standard shingles in Kenmore’s humid microclimate. For homes under heavy tree canopy, we also recommend zinc or copper ridge strips that release ions with each rainfall. Call (866) 850-9676 to discuss which combination fits your roof’s exposure.
Yes. The persistent humidity where the Sammamish River delta meets Lake Washington accelerates rot in fascia, soffits, and decking - we’ve found soft decking on 20-year-old roofs that should have 5-10 years of life left. We automatically include full deck inspection in every Kenmore estimate, especially for homes south of 60th Avenue NE and east of Juanita Drive. Call (866) 850-9676 to book yours.
Most standard homeowner policies in 98028 cover sudden wind damage to roofing, but they rarely cover damage from long-term moisture infiltration or moss-related deterioration. We document storm damage with dated photos and detailed reports to support your claim, and we meet adjusters on-site when requested. Call (866) 850-9676 within 48 hours of any storm event to preserve your coverage.
Written by Neil Cavanaugh, Owner at Ridgeline Roofing Co., serving Kenmore since 2016.