Basement finishing · Seattle, WA
Basement Guest Suite in Seattle, WA
Self-contained guest suites with bath.
Basement Guest Suite in Seattle, WA
Looking for basement guest suite in Seattle? Xion Build is a licensed, bonded, and insured basement finishing contractor delivering standout results for Seattle homeowners — start to finish, under one roof. Self-contained guest suites with bath.
From Laurelhurst to Queen Anne, Seattle's older homes often need structural care alongside the kitchen, bath, and addition work that modernizes them.
You get a single point of contact, licensed and insured trades, and clear communication from the first sketch to the final walkthrough.
What's included in your basement guest suite
A typical basement guest suite in Seattle can involve insulation, electrical, egress, framing — and we put the full scope in writing so you know exactly what's covered before work starts.
We write scope in plain terms: what we'll do, the materials, the sequence, and how any surprises are handled if something is uncovered.
How much does a basement guest suite cost in Seattle?
Most basement guest suite projects in Seattle fall between $21,000 – $57,500, 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 basement finishing project — so there are no surprises later.
Why Seattle homeowners choose Xion Build
Local crews who know Eastside permitting, inspections, and the way Pacific Northwest weather tests a home.
Meticulous job sites and clear daily communication, with respect for your home, your time, and your neighbors.
Licensed, bonded, and insured in Washington — every project is built to meet or exceed code and backed by a written warranty.
Our Seattle basement finishing process
Design and material selections come next, so finishes, fixtures, and pricing are locked in before demolition — no surprises mid-project.
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.
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 Seattle.
How long does a basement guest suite take?
Timelines depend on scope and permitting. Once the plan is confirmed we give you a realistic schedule and keep you updated as the basement finishing work progresses.
How much does a basement guest suite cost in Seattle?
Most basement guest suite projects in Seattle run $21,000 – $57,500, depending on scope, finishes, and existing conditions. After a free in-home consultation we provide a detailed written estimate so your Seattle price reflects the actual project — not a guess.
Are you a licensed basement finishing 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.
Do you offer a basement guest suite in Seattle, WA?
Yes. Self-contained guest suites with bath. Xion Build is a licensed, bonded, and insured basement finishing contractor serving Seattle and the surrounding WA communities.
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