Seattle's housing stock spans everything from Craftsman bungalows in Ballard and Fremont to mid-century homes in West Seattle and older apartment conversions on Capitol Hill and Queen Anne, and a lot of it still carries single-pane or aging aluminum-frame windows that were never built for King County's long, wet, cold winters. That combination pushes heat straight out through drafty seals and thin glass, drives up heating bills, and leaves interior condensation fogging up glass from October through March. Double- or triple-pane, low-E, argon-filled replacement windows address both problems at once, cutting heat loss and keeping moisture from collecting on cold glass surfaces. Because Seattle's building stock varies so much by neighborhood and decade, window installation work here often means custom sizing to match older, non-standard openings, careful trim and finishing to blend with original woodwork, and clean removal of old sashes and frames without damaging plaster or siding. Whether it's a new-construction install in a Fremont infill project or a retrofit in a century-old Queen Anne home, the work needs to account for local rain exposure and seasonal humidity. We serve homes and businesses throughout King County, including Capitol Hill, Ballard, Fremont, Queen Anne, and West Seattle, with typical response in around 80 minutes. All work is performed under Washington L&I contractor registration and bond, so homeowners have a licensed, insured crew handling the job from measurement to final trim.
What we handle
Window installation and related work — new-construction install, retrofit installation, custom sizing, trim & finishing, old window removal.
- new-construction install
- retrofit installation
- custom sizing
- trim & finishing
- old window removal
Window Installation cost & response in Seattle
There's no flat rate for window installation in Seattle — the price depends on the size and scope of the job, the materials, access and how urgent it is. The only way to get an accurate number is a free, no-obligation quote from a licensed local window pro.
Average on-site response: 80 minutes across King County.
In Washington, roofing contractors must register with Labor & Industries (L&I) and maintain a surety bond and liability insurance.
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Get free window quotesFrequently asked questions
How much does window installation cost in Seattle?
Cost depends on factors like window size and count, glass type (double- vs triple-pane, low-E coatings), frame material, how difficult the opening is to access, whether old windows need removal, and how quickly you need the work done. Older Seattle homes with non-standard openings or extensive trim work often take more labor than new-construction installs. Because every home differs, the most accurate way to know your cost is a free, no-obligation quote based on your specific windows and goals.
How fast can someone come out to my home in Seattle?
Average response time in the Seattle area is about 80 minutes. Actual arrival can vary based on your neighborhood, current job load, and time of day, but we aim to get a technician to you quickly for both estimates and scheduled installation work.
Are your window installers licensed in Washington?
Yes. All work is performed under Washington L&I contractor registration and bond, which means the crew working on your home meets the state's requirements for licensed, insured contracting work in King County.
What areas around Seattle do you cover?
We serve homes and businesses throughout King County, including Capitol Hill, Ballard, Fremont, Queen Anne, and West Seattle, as well as nearby communities like Kirkland, Bellevue, and Redmond.
What window problems are most common in Seattle homes?
Many older Seattle houses, especially Craftsman and mid-century homes, still have single-pane or aging aluminum-frame windows that let heat escape during the region's long, cold, wet winters. This shows up as high heating bills, drafts, and condensation fogging the glass. Upgrading to double- or triple-pane, low-E, argon-filled windows is the typical fix, along with proper trim and finishing to match the home's existing style.
Can you help with urgent or after-hours window issues?
Yes, we understand window problems like failed seals, storm damage, or a broken pane don't wait for business hours. Reach out and we'll work to get someone to you as quickly as possible, with average response around 80 minutes.
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