Exterior renovations,
Portland & SW WA.
From the ridgeline down to the deck boards, we handle every part of your home's exterior — roofing, siding, windows and doors, gutters, and decking — backed by industry-leading manufacturers and certified installation.
Roofs that stand the test of time.
A new roof is one of the most important investments you'll make in your home, and one of the most visible. Cornerstone partners with GAF, North America's largest roofing manufacturer, to deliver roofs built to handle every Pacific Northwest winter for decades to come.
Premium shingles. Certified installation. Manufacturer-backed warranties. Built to last.
RoofVision
Upload a photo of your home and preview real GAF Timberline HDZ and Grand Sequoia shingle colors on your own roofline.
See your roof →Learn more →
What a Portland roof replacement costs →
Engineered for the Pacific Northwest.
Siding is the difference between a home that looks great for ten years and one that looks great for fifty. As members of the James Hardie™ ALLIANCE, we install Hardie® fiber cement siding the way it was designed for the wet PNW, resistant to moisture, rot, fire, and pests.
The kind of curb appeal that holds its value through every Oregon winter.
SidingVision
Upload a photo of your home and preview real James Hardie and CertainTeed siding colors on your own home.
See your siding →Learn more →
What Hardie siding costs in Portland →
Where light meets craftsmanship.
The right windows change everything. They frame your view of the world, fill your home with natural light, and quietly cut your energy bill year after year.
Cornerstone installs windows and doors from the most trusted names in the industry. Milgard and Simonton, chosen for their beauty, their performance, and the kind of efficiency you feel the first winter you stop hearing your furnace run all day. Every install is sealed and finished to keep your home dry, your bills low, and your view uncompromised.
Get a window quote →Learn more →
Engineered for Oregon rain.
In Portland, your gutters work harder than almost any other part of your home. Cornerstone installs seamless aluminum gutters paired with Premier Gutter Cover™ protection, designed to keep your home's foundation, fascia, and landscaping safe from the wettest seasons the Pacific Northwest can throw at them.
Get a gutter quote →Learn more →
Outdoor living, built to last.
A great deck turns a backyard into an outdoor room, somewhere you actually live, not just somewhere you walk through.
Cornerstone builds decks in premium Trex® composite for low-maintenance longevity, or natural cedar, redwood, and Brazilian hardwoods for the timeless look. Engineered to last, finished with the details that make a deck feel like part of the home.
Get a decking quote →Learn more →
Common questions
What manufacturers do you partner with?
We work with leading manufacturers including GAF, James Hardie, CertainTeed, Milgard, Simonton, Premier Gutter Cover, and Trex. Certifications and partnerships like these are not easy to earn, and they are what qualify our installs for the strongest available warranties on every project we take on.
Do you offer financing?
Yes. We offer flexible financing options through trusted third-party lenders so you can break the project into manageable monthly payments. We will walk through your options during your consultation, and your proposal always comes itemized, so you can see exactly what each choice costs before you decide.
Do you handle insurance claims?
We do. If your project involves storm damage or another insurable event, our team works directly with your adjuster to advocate for full scope of repair, so you do not have to navigate the claim alone. Document everything, and call us before you call the carrier.
How long do projects take?
Every project is different. A roof replacement may be one to three days. A full siding job may run two to three weeks. Steep pitches, deck repairs, and weather holds can add time, and we never leave a roof open to rain. We give you a clear timeline as part of your custom proposal.
The work speaks for itself.
Ready to start your project?
Let us walk through your home and lay out the path forward. Free consultation, no obligation.
Get a Quote →See recent work →