Roof Installation Services in Seattle
Professional new roof installation for Seattle homes and businesses. Every material type, expert crews, and a 10-year workmanship warranty from K Single Corp.
Seattle Roof Installation Specialists Since 2007
K Single Corp is a licensed Seattle roof installation contractor (WA #KSINGSC842B3) with 15,000+ completed projects and a 4.7-star rating across 172+ Google reviews. Roof installation covers new construction roofing, full tear-off and replacement of an aging system, and additions or remodels that require a complete roof build. Every project gets factory-trained crews, manufacturer-approved assemblies, and our 10-year workmanship warranty.
Most residential installs finish in 1 to 3 days, with composition shingle homes wrapping in 1 to 2 days, metal in 2 to 3 days, and cedar shake or complex roofs in 3 to 5 days. We pull all King County and city permits, schedule the required inspections, and present full material options from composition shingles starting around $8,000 to metal systems from $15,000 (calc-backed). Every install is paired with a 10-year workmanship warranty plus 25 to 50-year manufacturer material warranties.
Licensed & Insured
WA #KSINGSC842B3, fully bonded, general liability + workers comp on every project.
10-Year Warranty
Workmanship warranty on every install, plus manufacturer material warranties up to 30 years.
4.7-Star Google
172+ Google reviews across King, Snohomish, and Pierce counties since 2007.
What's included with our roof installation service
Get a Free Roof Installation Estimate
Most estimates scheduled within 48 hours. No obligation, no high-pressure sales, written line-item quote.
Request Free Estimate Call (206) 659-4349172+ verified Google reviews from Seattle, Bellevue, Kirkland, and Greater Seattle homeowners.
K Single Corp has completed over 15,000 roof installations across King, Snohomish, and Pierce counties, with every project backed by a 10-year workmanship warranty. Use our roofing cost calculator for an instant quote across all materials, or browse completed projects to see real results. Contact us for a free estimate.
A full roof installation includes more than laying new shingles or panels. We install every major material type, from composition shingles and standing seam metal to cedar shake and flat/TPO systems. Each project handles building permit applications, material ordering and delivery, full tear-off of the existing roof, decking inspection and repair, ice and water shield at all vulnerable areas, synthetic underlayment, proper flashing at every penetration and valley, and complete debris hauling and disposal. You do not need to coordinate any of these steps yourself.
Why Roof Installation
What Sets Us Apart
Every Major Roofing Material
Composition shingles, metal, cedar shake, flat/TPO, and composite. We install the right system for your home and climate.
Full Permit Handling
We manage all building permit applications and city inspections so you never have to visit a permit office.
Weather-Smart Scheduling
We monitor forecasts and schedule around Seattle's rain windows. Exposed areas are protected between work days.
Clean Jobsites, Every Day
Tarps, magnetic nail sweeps, and full debris hauling. Your property is left cleaner than we found it.
10-Year Workmanship Warranty
Every installation backed by our 10-year warranty, plus manufacturer material warranties of 25 to 50+ years.
15,000+ Projects Completed
Proven track record across the greater Seattle area since 2007. Licensed, bonded, and insured in Washington State.
At a Glance
WA License
KSINGSC842B3
Credentials
Licensed, Bonded, Insured
Service Area
King, Snohomish, Pierce
Warranty
10-year workmanship
Our Roof Installation Process
Free Estimate and Inspection
We inspect your existing roof, take precise measurements, and discuss material preferences and budget.
Permitting
We handle all building permit applications and schedule required city inspections.
Material Selection and Ordering
Choose your material, color, and profile. We order everything and confirm your project start date.
Professional Installation
Full tear-off, decking inspection and repair, underlayment, flashing, and new roof installed by our crew.
Final Inspection and Walkthrough
A project manager verifies every detail, then walks you through the finished roof and warranty coverage.
Free Estimate and Inspection
We inspect your existing roof, take precise measurements, and discuss material preferences and budget.
Permitting
We handle all building permit applications and schedule required city inspections.
Material Selection and Ordering
Choose your material, color, and profile. We order everything and confirm your project start date.
Professional Installation
Full tear-off, decking inspection and repair, underlayment, flashing, and new roof installed by our crew.
Final Inspection and Walkthrough
A project manager verifies every detail, then walks you through the finished roof and warranty coverage.
Built for Pacific Northwest Conditions
Roof Installation in Seattle's Climate
37+ inches of annual rain, 150+ overcast days, salt-air drift off Puget Sound, freeze-thaw at higher elevations. Every roof installation project we deliver is spec'd for what Seattle actually throws at it.
Weather Window Scheduling
Seattle's wet season (October through April) limits safe install days. We monitor 7-day forecasts and book installs during 2 to 4 day dry windows, tarping exposed decking overnight so moisture never reaches the substrate.
Synthetic Underlayment Standard
PNW humidity rots traditional felt underlayment within years. Every install includes synthetic underlayment rated for 25+ years, with self-adhering ice and water shield at eaves, valleys, and all penetrations.
Code-Compliant Attic Ventilation
Without proper intake and exhaust ventilation, Seattle attics trap moisture and shorten roof lifespan by 30 to 50 percent. We rebalance ridge and soffit vents to meet Washington energy code on every install.
Ice and Water Shield Placement
Washington code requires ice and water shield from the eave edge to 24 inches inside the heated wall line. On low-slope sections and valleys we extend coverage further to handle wind-driven PNW rain.
Recent Work
Roof Installation Projects in Seattle
The best, most caring and professional company we have ever experienced. Not only was the new roof done quickly and perf...
K Single was recommended by another roofing company and we are really glad that we went with them. Out of all the estima...
K Single Corp Roofing just completed a roofing replacement project at my house and did a great job. No extra charges, wo...
Quality materials and craft, attention to detail and timely, low key service that went beyond expectations at each turn....
K Single Corp previously helped me patch a leak caused by a wind storm and age, and inspected the rest of the roof to gi...
We purchased our home 14 years ago. Our roof started to leak. After investigating the cause, it was apparent there were...
K Single replaced our roof recently. They are a great company to work with and finished the project in a timely manner a...
I had K Single install a PVC roof and James Hardie siding on my house. Isidro and his crews were punctual, professional,...
I was very impressed with the job they did on my roof and covered patio, they cleaned up every day after working and the...
Fantastic experience with K Single Corp. Isidro and team were hyper-responsive and provided a fair price. Their customer...
Isidro and his team were great. They were meticulous and efficient with the installation of my garage roof. They provide...
Fantastic crew to work with. We hired K Single to redo our PVC Roof, build an awning, install solatubes, and paint our h...
Common Questions
Frequently Asked Questions
How much does a new roof installation cost in Seattle?
How long does a new roof installation take?
What is the best time of year to install a new roof in Seattle?
Do I need a permit to install a new roof in Seattle?
What happens to my old roof during installation?
Can I stay in my home during a roof installation?
What warranty comes with a new roof installation?
Other Services We Offer
From roofing to siding, gutters, decks, and more. K Single Corp handles it all.
Residential Roofing
Complete residential roofing services for Seattle-area homeowners. From full replacements to storm damage repairs, K Single Corp delivers proven results backed by 25+ years of experience.
Commercial Roofing
Reliable commercial roofing for Seattle-area businesses. TPO, PVC, metal, and flat roof systems installed and maintained by K Single Corp's experienced crew.
Roof Repair
Fast, reliable roof repair for Seattle homes and businesses. Fix leaks, storm damage, missing shingles, and flashing failures.
Siding
Professional siding installation and replacement for Seattle homes. Vinyl, fiber cement, wood, and engineered options. Boost curb appeal and energy efficiency.
Ready to Get Started?
Request a free estimate and find out why 15,000+ homeowners trust K Single Corp.
Most estimates completed within 24 hours.