Home › Washington › Seattle
Trusted Seattle window installers, free in-home quotes, licensed & insured pros, workmanship warranty.
Window replacement in Seattle is about managing damp. Winters here are gray, wet, and mild, with weeks of drizzle rolling in off Puget Sound. Old windows sweat, fog up, and grow mold around the sash. Good windows keep the cold glass surface warmer, so moisture stays in the air instead of on your walls.
A lot of Seattle homes are Craftsman bungalows, especially in Ballard and Fremont, plus older houses across Capitol Hill and Queen Anne. Many still carry their original single-pane or early double-pane sash. You feel it as drafts, condensation on the glass, and street noise you cannot tune out. New windows take care of all of it at once.
Licensed local crews handle every job, background-checked and trained, no day labor sent to your door.
You get a line-item quote in writing before we start, with no surprise fees tacked on later.
If your job needs a permit, we pull it through the Seattle Department of Construction & Inspections and meet the strict Seattle Energy Code for you.
If anything from our install goes wrong, your installer comes back and fix it, and your manufacturer warranties stand behind the glass too.
Every style, built for Seattle's climate.
Two sashes that slide up and down, a Craftsman classic in Ballard, and easy to wipe down when the glass fogs.
Cranks open on a side hinge for strong airflow and a tight seal that keeps drizzle out.
Glides along a track, a clean pick for wide openings and long Puget Sound views.
One big fixed pane that pulls in every bit of light on a gray day.
Multi-panel windows that push outward, adding a bright nook and real curb appeal.
Top-hinged awnings vent even in the rain, and garden windows give you a shelf for plants.
For Seattle's cool marine climate we most often install vinyl or fiberglass frames with Low-E 180 (high-insulation) glass.
Get a free, no-pressure recommendation for your Seattle home, any style, any material.
From one drafty window to a whole building, we work with homeowners and property owners across Greater Seattle.
We fit Craftsman bungalows, condos, townhomes, and older Capitol Hill houses that still fight condensation every winter. We measure, pull any permit with the Seattle Department of Construction & Inspections, install, and clean up.
We handle offices, retail storefronts, multi-family buildings, and HOAs with code-compliant glazing. We schedule around your hours to keep disruption low and offer bulk pricing on larger jobs.
Residential or commercial, most Seattle property types qualify. No deposit, no pressure.
Licensed & insured · Lifetime workmanship warranty · Reply in 1 business hour
Seattle sits in climate zone 4C, a cool marine zone. That means mild, wet winters and a real focus on insulation and moisture control, so your windows need to hold heat and fight condensation. Here is the setup we install on Seattle homes:
| Spec | Recommended for Seattle | Why |
|---|---|---|
| Glass coating | Low-E 180 (high-insulation) | insulates through long, damp winters |
| Frame material | Vinyl or fiberglass | wet marine climate, no rot, tight seal |
| Gas fill | Argon | warmer glass surface = less condensation |
| U-factor target | ≤ 0.28 | exceeds the Washington energy code requirement for zone 4C |
| SHGC target | 0.30–0.40 | captures scarce winter sun |
In Seattle, U-factor is what holds heat inside on a cold night. A lower U-factor keeps the inside face of the glass warmer, which cuts the condensation and mold that plague damp marine winters. Residential power in Washington averages about 15.3 cents per kilowatt-hour, so the bigger payoff here is a drier, healthier home along with lower heating bills.
Window installation in Seattle usually runs $500 to $850 per installed window, or $9,000 to $17,000 for a full home. Older Craftsman and bungalow homes can take a bit more labor because original openings are rarely square. With local home values near $820,000, efficient windows are an investment you notice on every gray day. We give you a fixed quote before any work starts.
Get a free, no-pressure in-home quote today, licensed, insured, and backed by the installer's lifetime workmanship warranty.
We measure your openings in person and hand you a written estimate, no guesswork on those damp Seattle walls.
Your windows get built to the exact size of each opening, so they seal tight against the wet.
Most homes wrap up in a single day, and your installer pulls any permit the Seattle Department of Construction & Inspections wants.
We tidy up, carry the old units out, and get your warranty registered before we go.
Seattle keeps things simple for basic swaps. A like-for-like window replacement, same size and same opening, usually does not need a permit through the Seattle Department of Construction & Inspections. You do need one if you resize the opening, make it structural, or change a bedroom window that must meet egress rules. Every job also has to meet the Seattle Energy Code, one of the strictest in the country, which sets an area-weighted average U-factor ceiling. Your installer handles the paperwork and code compliance for you.
"Honest quote, no pressure, and our whole Ballard house was done in a day. Spotless cleanup."
"Energy bill dropped noticeably after they replaced our worst windows in Capitol Hill."
"They matched our older home's window style in Queen Anne perfectly. Craftsmanship is real."
Recent project: Full-home replacement in Ballard, 20 Low-E 180 (high-insulation) windows.
See what your project would cost, free, no-obligation in-home quote.
ZIP codes served: 98103, 98105, 98107, 98109, 98115, 98116
Usually not for a like-for-like swap in the same opening. You do need a permit from the Seattle Department of Construction & Inspections if you resize the opening, make a structural change, or alter a bedroom window that must meet egress rules. We handle it either way.
For Seattle's cool marine zone 4C climate, we recommend Low-E 180 high-insulation glass in vinyl or fiberglass frames, targeting a U-factor of 0.28 or lower. That combination fights heat loss and the condensation that comes with damp winters.
Most Seattle jobs run $500 to $850 per installed window, or $9,000 to $17,000 for a full home. Older Craftsman homes can run a little higher because the openings are rarely square.
Residential power in Washington averages about 15.3 cents per kilowatt-hour, which is low for the country. The bigger win here is a warmer, drier home with less condensation, plus steady savings on winter heating.
Yes, in most cases. Damp marine winters cause cold single-pane glass to sweat, which feeds mold around the sash. Modern double-pane Low-E windows keep the inside glass warmer, so moisture stays in the air instead of pooling on the frame.
Yes. Every installer we match you with is licensed, bonded and insured in Washington, and their work carries a lifetime workmanship warranty from your installer alongside the manufacturer's warranty on the windows. We arrange your quote and the introduction; your installation contract is with the installer who does the work.
Free, no-pressure in-home estimate. No deposit to book. Satisfaction guaranteed.
