Windows & doors · Mercer Island, WA
Patio & Sliding Doors in Mercer Island, WA
Sliding and multi-slide patio doors for indoor-outdoor living.
Patio & Sliding Doors in Mercer Island, WA
When Mercer Island homeowners search for patio & sliding doors or a dependable windows & doors contractor near them, they want craftsmanship that lasts and a crew that communicates. That's exactly what we do. Sliding and multi-slide patio doors for indoor-outdoor living.
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 patio & sliding doors
A typical patio & sliding doors in Mercer Island can involve weatherproofing, trim, flashing, hardware — 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 patio & sliding doors cost in Mercer Island?
Most patio & sliding doors projects in Mercer Island fall between $8,300 – $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
Licensed, bonded, and insured in Washington — every project is built to meet or exceed code and backed by a written warranty.
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.
Our Mercer Island windows & doors process
Handoff includes a detailed walkthrough and a written warranty — not a crew that vanishes the moment the dust settles.
It starts with a free, no-obligation consultation: what you want, the constraints, and a realistic budget range before you commit to anything.
Design and material selections come next, so finishes, fixtures, and pricing are locked in before demolition — no surprises mid-project.
Frequently asked questions
What should we decide before starting a patio & sliding doors?
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.
How much does a patio & sliding doors cost in Mercer Island?
Most patio & sliding doors projects in Mercer Island run $8,300 – $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.
How long does a patio & sliding doors 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.
Do you offer a patio & sliding doors in Mercer Island, WA?
Yes. Sliding and multi-slide patio doors for indoor-outdoor living. Xion Build is a licensed, bonded, and insured windows & doors contractor serving Mercer Island and the surrounding WA communities.
Are you a licensed windows & doors contractor?
Yes — Xion Build is licensed, bonded, and insured in WA. Every project is built to meet or exceed code and is backed by a written warranty.
Related services in Mercer Island
New construction windows
Windows framed and flashed into additions and new openings.
View detailsBi-fold & accordion doors
Folding glass walls that open rooms to the outdoors.
View detailsStorm & screen doors
Storm doors, screens, and retractable screen systems.
View detailsSkylight & roof window
Daylighting with leak-proof skylights.
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