Windows & doors · Mercer Island, WA
Bay & Bow Window Build in Mercer Island, WA
Framed and finished bay and bow window assemblies.
Bay & Bow Window Build in Mercer Island, WA
When Mercer Island homeowners search for bay & bow window build or a dependable windows & doors contractor near them, they want craftsmanship that lasts and a crew that communicates. That's exactly what we do. Framed and finished bay and bow window assemblies.
Mercer Island projects often involve sloped lots, shoreline rules, and mid-century homes that benefit from thoughtful structural and design planning.
From energy-efficient replacement windows to patio sliders, entry doors, and folding glass walls, we install for a weather-tight, draft-free fit.
What's included in your bay & bow window build
A typical bay & bow window build in Mercer Island can involve hardware, air sealing, trim, flashing — and we put the full scope in writing so you know exactly what's covered before work starts.
Windows and doors are where comfort, energy bills, and curb appeal meet — proper flashing and air sealing matter as much as the units themselves.
How much does a bay & bow window build cost in Mercer Island?
Most bay & bow window build projects in Mercer Island fall between $8,400 – $28,000, depending on the size of the space, the finishes you choose, and the condition of what's already there.
Because every home is different, we don't quote final numbers sight unseen. After a free in-home consultation you get a detailed, itemized estimate tied to your actual windows & doors project — so there are no surprises later.
Why Mercer Island homeowners choose Xion Build
Transparent, written estimates with no hidden fees — you know what you're paying for before work begins.
One dedicated point of contact coordinates the entire job, so you're never chasing subcontractors or wondering who's responsible.
Meticulous job sites and clear daily communication, with respect for your home, your time, and your neighbors.
Our Mercer Island windows & doors process
It starts with a free, no-obligation consultation: what you want, the constraints, and a realistic budget range before you commit to anything.
Each phase is inspected and documented, and we keep you updated so you always know what's happening and what's next.
Handoff includes a detailed walkthrough and a written warranty — not a crew that vanishes the moment the dust settles.
Frequently asked questions
Do you handle permits and inspections?
Yes. We manage permit applications, schedule inspections, and coordinate any required engineering so the work passes cleanly in Mercer Island.
How much does a bay & bow window build cost in Mercer Island?
Most bay & bow window build projects in Mercer Island run $8,400 – $28,000, depending on scope, finishes, and existing conditions. After a free in-home consultation we provide a detailed written estimate so your Mercer Island price reflects the actual project — not a guess.
Do you offer a bay & bow window build in Mercer Island, WA?
Yes. Framed and finished bay and bow window assemblies. Xion Build is a licensed, bonded, and insured windows & doors contractor serving Mercer Island and the surrounding WA communities.
How long does a bay & bow window build take?
Timelines depend on scope and permitting. Once the plan is confirmed we give you a realistic schedule and keep you updated as the windows & doors work progresses.
What should we decide before starting a bay & bow window build?
Your budget range, must-haves, timeline, and any finishes you already love. For windows & doors work we also review access, existing conditions, and whether permits are required in Mercer Island.
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