Window Replacement Contractor
Seattle, Washington
Vasa Construction LLC is a window replacement contractor in Seattle, Washington, fitting new units in homes and commercial buildings across the Puget Sound region. Fog trapped between two panes is a receipt for heat leaving your house, and a draft around the frame usually means the opening was never flashed correctly. We measure every opening individually, correct rot in the surrounding framing, and tie each new unit into the wall assembly so the wall stays as dry as the glass. Our crews have done this in these houses for 25+ years, including original single-pane sashes in 1920s bungalows. Get your free window replacement estimate today!
Explore Our Window Replacement Services
The difference between a window that performs and one that leaks within 6 years is almost entirely installation, which is why we never treat it as a drop-in product swap. Sill pans go in, flashing laps correctly, and soft framing gets replaced before the unit is set. You get glazing options explained in plain terms and firm pricing before anything is ordered.
Full-Frame Window Replacement
Removing the entire unit down to the rough opening is the thorough option. It exposes hidden rot, allows proper sill pan and flashing installation, and preserves the original glass area rather than shrinking it.
Insert and Pocket Replacement
When the existing frame is sound and dry, a new unit fits inside it. This keeps interior and exterior trim intact, shortens the schedule considerably, and costs noticeably less than full-frame work.
Vinyl and Fiberglass Windows
Both resist the moisture that eventually destroys unclad wood. Fiberglass holds tighter tolerances and accepts paint, while vinyl delivers strong thermal numbers at a friendlier price for whole-house projects.
Bay, Bow, and Picture Windows
Larger assemblies need structural attention above and below the opening. Headers, seat framing, and roof caps all get built correctly so the unit carries its own weight without sagging over time.
Patio and Sliding Door Replacement
Doors take abuse windows never see. Replacing worn sliders and swing units restores smooth operation, seals a large opening properly, and removes one of the biggest air leaks in most houses.
Trim, Flashing, and Rot Repair
Openings are where walls leak. Sill pans, self-adhered flashing, and replacement of soft framing turn each opening back into a drainage detail rather than a slow entry point for the weather.
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Window Frame Materials
We install vinyl, fiberglass, wood-clad, and aluminum windows. Frame material decides maintenance, thermal performance, and how the window will look on a particular house, so we walk through all three before you choose.
Vinyl Windows
The practical choice for whole-house replacement. Multi-chamber frames insulate well, the color goes all the way through so scratches do not show, and nothing ever needs painting or sealing again.
Fiberglass Windows
Stronger and more dimensionally stable than vinyl, which allows narrower frames and more glass. Fiberglass accepts paint, expands at nearly the same rate as glass, and handles large openings without sagging.
Wood-Clad Windows
Real wood inside for period interiors, with an aluminum or fiberglass exterior skin doing the weathering. It suits craftsman and Tudor homes where a vinyl frame would visibly undercut the architecture.
Aluminum Windows
Slim sightlines for modern and commercial applications. Thermally broken frames are essential in this climate, because unbroken aluminum conducts cold straight through and condenses moisture on the interior surface all winter.
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Why Seattle Chooses Vasa Construction LLC
The Vasa Experience comes down to straight answers, clean sites, details that hold, and the same crew from start to finish.
1
Straight Answers
You hear what the building needs and what it will cost before work starts, including the option nobody thought to ask about.
2
Clean Sites
Tarps go down, debris leaves in the truck daily, and magnets sweep the ground so nobody finds a stray fastener with a tire.
3
Details That Hold
The parts you never see, like flashing laps and fastener patterns, get done to spec, because those are what fail first.
4
Crews You Recognize
The same team starts and finishes your project, so you are never re-explaining the job to someone who arrived halfway through the week.
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Improve Comfort, Efficiency, and Everyday Home Appeal
Windows carry an unreasonable share of the work in a house, letting in light and view while holding back weather, noise, and the gap between a February evening and your living room. When they stop managing that, the symptoms arrive separately: a draft here, a damp sill there, a room nobody sits in after October. Replacing them properly fixes all of it at once, provided each opening is flashed and sealed rather than simply filled. Vasa Construction LLC does that work on houses across Seattle, Washington. Reach us through our contact page for a free estimate.
Frequently Asked Questions
When should windows be replaced rather than repaired?
Fogging between panes, frames that are rotted or out of square, sashes that will not stay open, and persistent drafts around sealed edges all point to replacement. Hardware alone is repairable.
What is the difference between full-frame and insert replacement?
Full-frame removes everything to the rough opening, allowing flashing and rot repair. Inserts fit inside a sound existing frame, keeping trim intact but slightly reducing glass area and hiding whatever sits behind.
Which frame material suits this climate best?
Fiberglass and quality vinyl both handle sustained damp without swelling or rotting. Wood-clad units look best in period homes but need exterior cladding to survive the wet months without ongoing maintenance.
Is triple pane glass worth it in Seattle?
Rarely, for thermal reasons alone. Our winters are mild enough that good double glazing with a low-emissivity coating captures most of the benefit. Triple pane makes more sense for noise reduction.
Will new windows really reduce street noise?
Yes, though less dramatically than the marketing suggests. Laminated glass and varied pane thicknesses help most. Vasa Construction LLC discusses realistic expectations with Seattle, Washington homeowners before ordering anything.
How long does a whole-house replacement take?
Ordering usually takes 4 to 8 weeks, and installation runs 2 to 5 days for a typical home. Full-frame work and rot repair extend the on-site portion of that schedule.
Why do my new windows still show condensation?
Moisture on the room side of new glass means indoor humidity is high, not that the window failed. Better ventilation, bath fans, and crawlspace vapor control usually resolve it quickly.
Should siding be replaced at the same time?
If both are due, absolutely. Vasa Construction LLC coordinates the two on Seattle, Washington projects so flashing integrates cleanly, which is far harder once the cladding is finished.