The Cornerstoneof every great home.
Roofing contractor serving the Portland metro and southwest Washington. Roofing, siding, windows, gutters, and decking, built to last by Portland's premier exterior renovation team.
Get a Quote →See your roof first →Built on a higher standard.
At Cornerstone, we don't believe in shortcuts, and we don't believe cost should stop you from taking care of your home.
We specialize in doing the job right the first time, using proven installation methods and long-lasting products built for real protection. Every project is designed to increase your home's value and give you peace of mind.
As a locally owned company, our name is on every job, and that means we stand behind our work, and work with you to make the project make sense.
Read our story →Five disciplines.
One trusted team.
From the ridgeline down to the deck boards, we handle every part of your home's exterior, backed by industry-leading manufacturers.
Explore our services →Curious how a new roof would look on your home? Upload a photo and see it for yourself with RoofVision.
Try RoofVision →See it on your home first.
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 →
SidingVision
Upload a photo of your home and preview real James Hardie and CertainTeed siding colors on your own home.
See your siding →Four principles.
Built into every job.
Specialized Installation
Manufacturer-trained installation. Every detail to spec, every time.
Lifetime Products
Industry-leading materials with manufacturer-backed warranties.
Locally Family Owned
Proudly serving Portland and southwest Washington.
Affordable Solutions
Itemized bids and flexible financing options to fit any budget.
Where we work
Recent jobs across the metro. Pins mark neighborhoods, never exact addresses.
Fresh off the roof.
From the Resource Hub.
RoofingEmergency Roof Repair in Portland, OregonActive roof leak in Portland? Here is what counts as a roofing emergency, what to do in the first hour, and how a licensed local crew responds.October 20, 2026RoofingWhat Makes a Roofing Contractor the Right Fit in PortlandChoosing a roofing contractor in Portland, Oregon? Here is what to check before you sign: CCB licensing, GAF certification, who is on the crew, and warranties.October 13, 2026
RoofingHow to Read Roofing Contractor Reviews in Portland, OregonStar ratings only tell you so much. Here is how to read roofing contractor reviews in Portland, Oregon and spot the details that predict a smooth roof job.September 29, 2026One crew. Two offices.
Every project runs through one of our two offices. Find yours for the address, hours, and the crew that covers your neighborhood.
Hillsboro, OR
Our main office in Amberglen, running roofing, siding, windows, gutters, and decking across the Portland metro.
Visit the Hillsboro office page →Olympia, WA
Our staffed Thurston County office on Airport Court SE, serving Olympia, Lacey, Tumwater, and the South Sound.
Visit the Olympia office page →Common questions
Where do you work?
We serve homeowners across the Portland metro area and southwest Washington, including Portland, Beaverton, Hillsboro, Lake Oswego, Tigard, Gresham, Vancouver, and surrounding communities. On the South Sound side, our Olympia office covers Olympia, Lacey, and Tumwater. Working just outside those cities? Call and ask; we take projects across the metro.
Are you licensed and insured?
Yes. Cornerstone Renovations is fully licensed (Oregon CCB #261422), bonded, and insured, and we carry all the coverage required to work on Oregon and Washington homes. You can verify our license in minutes on the Construction Contractors Board website; we expect you to check. We also hold a 5.0 Google rating across 80 reviews.
Are estimates really free?
Yes. Every consultation includes a no-cost, no-obligation walkthrough of your home and a detailed quote for your project, and you only pay if you decide to move forward. If you want a ballpark first, the instant estimator gives you a planning-level price range in about a minute, free as well.
Ready to start your project?
Let us walk through your home and lay out the path forward. Free consultation, no obligation.
Get a Quote →