Seattle’s Best Rated Exterior Contractors!

Proudly Serving Seattle, Eastside, Renton and All Surrounding Areas

Your Local Residential and Commercial Siding, Roofing,Gutter, Window and Deck Exterior Experts

Cobalt Exteriors

Your Local Residential and Commercial Siding, Roofing, Gutter, Window and Deck Exterior Experts

Since 1989 and throughout our history, we’ve been dedicated to providing our customers with the highest quality solutions for their home. As your
Woodinville Eastside siding, roofing, deck, and window contractors; we’re there when you need us most.

From installations to repairs, we offer high-quality solutions to take care of many of your residential and commercial needs. We can work with your
specific budget and design to make your dream home a reality!

Cobalt Exterior
Cobalt Exterior

Exterior Services



Keep your home looking beautiful with reliable siding installation…



Your roof is one of the most important Component of your home…



Our decks are built to last, and we use only high-quality materials…



Extensive range of beautiful and energy efficient



High-quality gutter installation and replacement services…

Over the Years We’ve Helped Hundreds of Homeowners with their Exterior Home Needs

Our dedication to customer service is unparalleled. Let our experience and expertise work for you!

Reliable Staff
Affordable Rates
Top Rated materials
Personalized Service

Contact Us For More Info

Hear From Our Customers

Mark Abramson

“Cobalt replaced some of the cedar exterior siding on our home in Kirkland. I hired them because their bid was competitive and clear. Kevin did a thorough job of reviewing the house and submitted a clear proposal.

They started the job a few days later than originally expected but Kevin communicated well through that. The guys doing the work were professional, fast, and did a good job cleaning up at the end of the day. And the quality of the work was very good. There were only a few small punch list items that they took care of quickly. They actually finished the job sooner than expected. I’d highly recommend Cobalt for siding work and would hire them again.”

Mark AbramsonCobolt Exteriors

Bill Huls

“This is our second time using Cobalt, two years ago for our siding and now our roof. Once again we found their service to be outstanding. Their crew was quick, respectful, and invited us to check the progress several times while working. They found and fixed some pre-existing issues and our roof now looks brand new – and safe! Not only did their work improve the curb appeal of our house, it has helped our power consumption and improved the worth of our house according to our latest appraisal. We have recommended Cobalt to all our family and friends.”

Bill HulsCobolt Exteriors

Christopher Villa

“Kevin and crew are amazing! They are not the cheapest gig in town, but the quality of work they do is top-notch and they are clean and timely on everything they do. His team is very professional. I would highly recommend using them and plan to use them for future projects.”

Christopher VillaCobolt Exteriors

Nick DeSanti

“I had a great experience with Cobalt. I was out of state when my roof was being replaced. Cobalt was communicating with me daily. They took pictures and kept me updated on the progression of the project. They also seemed to be much more knowledgeable than other roofers I spoke to. True specialists in their field. Kevin Callahan was kind enough to take my call two years after the job was completed when I had questions about replacing my Mother’s roof out of state.”

Nick DeSantiCobolt Exteriors

Hugh Engelhoff

“Kevin is always quick to respond, reliable, friendly to speak with, and provides a quality work product.”

Hugh EngelhoffCobolt Exteriors