Shingle Roof Replacement Cost in Kenmore, Washington
A shingle roof replacement in Kenmore typically runs $5,600 – $16,000 installed — $350 – $700 per square (100 sq ft) — from 3-tab up to architectural grade, tear-off included.
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Shingle roofing cost by grade.
Installed prices for a full shingle replacement in Kenmore. Roofers quote per square (100 sq ft) — a typical single-family roof runs 17–25 squares.
- 3-tab shinglesFlat profile, 15–20 year typical service$5,600 – $10,500
- Architectural shinglesDimensional, 25–30 year — the U.S. default$8,100 – $16,000
- Designer / premium shinglesSlate and shake look-alikes$12,000 – $25,500
- Underlayment & ice barrierSynthetic felt, ice & water shield where code requires$500 – $2,000
- Deck repair (plywood)Replacing rotted sheathing, priced by extent$500 – $2,500
- Tear-off & disposalOld layers off, dumpster included$1,000 – $3,000
- Permits & inspectionVaries by municipality$250 – $1,000
* Adjusted for Kenmore's labor market — an on-site measure sets the square count.
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Indicative range based on Kenmore-adjusted rates. Deck condition, flashing, and contractor overhead may shift the final invoice. Get written quotes from licensed roofing contractors before signing.
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Before you sign: the quote checklist
- Get quotes from at least 3 licensed roofing contractors in Kenmore.
- Make sure every quote itemizes tear-off, underlayment, flashing, and disposal.
- Verify licensing and insurance before hiring — ask for certificates, not promises.
- Ask about both the material warranty and the workmanship warranty — they differ.
Shingle Roof in Kenmore: what matters
Kenmore sits along the Sammamish River and Lake Washington, where wet winters and mild summers create a unique environment for asphalt shingle roofs. Many homes in Kenmore were built in the 1970s and 1980s, meaning their original roofs are now reaching the end of their service life. Local shingle roofs face steady moisture, occasional hail, and windstorms that can accelerate wear. Understanding what goes into replacement costs helps Kenmore homeowners plan for this major investment. This guide covers the local factors that influence pricing, from roof size and slope to disposal fees and permit requirements in Washington. Whether you own a split-level in an older neighborhood or a newer craftsman in a subdivision, knowing the variables will help you make an informed decision.
Why Shingle Roof Replacement Costs Vary in Kenmore
Kenmore's climate directly affects material choices and labor. Frequent rain and humidity promote moss and algae growth, so many homeowners opt for algae-resistant shingles, which cost more. Hail and wind events, common in the Pacific Northwest, may require impact-resistant shingles. The age of Kenmore's housing stock means many roofs have complex designs with valleys, dormers, and skylights that increase labor time. Washington's building code requires specific underlayment and ventilation standards, adding to material costs. Local disposal fees for old shingles and the cost of permits from the city's permitting office also factor in. Labor rates reflect the greater Seattle area's competitive market. Finally, roof pitch and accessibility—common in Kenmore's wooded lots—can raise or lower the final estimate.
Kenmore by the numbers
U.S. Census Bureau · ACS- 23,611
- Population
- 6,335
- Homeowners
- $803,000
- Median home value
- $132,191
- Median income
- 1983
- Median home built
- 9,575
- Housing units
6,335 homeowner households, median home built 1983 — a housing stock where many roofs are at or past their service life. Local labor sets the rate roofers charge in Kenmore.
Common Reasons Kenmore Roofs Need Replacement
Algae and Moss Growth
Kenmore's damp climate encourages moss and algae, which trap moisture against shingles and accelerate granule loss. Over time, this degrades the shingle's protective surface, leading to leaks and the need for replacement.
Wind Damage
Pacific Northwest windstorms can lift and curl shingle edges, especially on older roofs. Repeated wind exposure weakens seal strips, causing shingles to loosen or blow off entirely, compromising the roof's integrity.
Hail Bruising
Hailstorms in the region can bruise asphalt shingles, creating small cracks that allow water infiltration. While not always visible from the ground, hail damage reduces shingle lifespan and often necessitates replacement.
UV Degradation
Even in overcast Kenmore, UV radiation breaks down asphalt over time. Shingles become brittle, crack, and lose granules. This is especially common on south-facing slopes and roofs over 20 years old.
Ice Dams
Kenmore's freeze-thaw cycles can cause ice dams at roof edges, forcing water under shingles. Persistent ice dam damage leads to rot, mold, and compromised decking, often requiring full replacement.
Shingle Roof pricing near Kenmore
Shingle Roof cost questions — Kenmore
What factors affect shingle roof replacement cost in Kenmore?
Several factors influence cost: roof size and complexity (pitch, valleys, dormers), shingle type (standard vs. algae-resistant or impact-resistant), underlayment requirements per Washington's building code, disposal fees for old materials, and labor rates in the Seattle metro area. Permit fees from the city's permitting office also add to the total. Your contractor can provide a detailed estimate based on your specific roof.
How do I choose a roofing contractor in Kenmore?
Look for a contractor licensed in Washington, with proof of insurance and local references. Check their Better Business Bureau rating and read reviews from Kenmore homeowners. Ask about their experience with Pacific Northwest climate challenges like moss and wind. Get multiple written estimates and compare scope, not just price. Avoid contractors who require full payment upfront.
Does Washington require a license for roofing contractors?
Yes, Washington requires roofing contractors to be registered with the state's Department of Labor & Industries. They must have a valid contractor license and bond. Always verify a contractor's license number before hiring. Kenmore also requires a permit for roof replacement, which your contractor typically handles as part of the project.
When is the ideal time to replace a shingle roof in Kenmore?
Late spring through early fall offers the most consistent dry weather for roof replacement in Kenmore. Summer months provide longer daylight hours and warmer temperatures, which help shingles seal properly. However, reputable contractors work year-round, scheduling around rain. Plan ahead, as demand is highest in summer.
Do I need a permit for roof replacement in Kenmore?
Yes, Kenmore requires a building permit for roof replacement. Your contractor should apply for the permit on your behalf. The permit ensures the work meets Washington's building code and local requirements. Permit fees vary based on project value. Always confirm that your contractor includes permit costs in their estimate.
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