Basement finishing · Woodinville, WA
Basement Bathroom Addition in Woodinville, WA
Add a bath with proper plumbing and ejector if needed.
Basement Bathroom Addition in Woodinville, WA
Looking for basement bathroom addition in Woodinville? Xion Build is a licensed, bonded, and insured basement finishing contractor delivering standout results for Woodinville homeowners — start to finish, under one roof. Add a bath with proper plumbing and ejector if needed.
Woodinville's wine-country estates and acreage homes are ideal for additions, outdoor living, and kitchens built for entertaining.
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 bathroom addition
A typical basement bathroom addition in Woodinville can involve finishes, electrical, framing, insulation — 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 bathroom addition cost in Woodinville?
Most basement bathroom addition projects in Woodinville fall between $44,500 – $111,500, 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 Woodinville homeowners choose Xion Build
One dedicated point of contact coordinates the entire job, so you're never chasing subcontractors or wondering who's responsible.
Honest guidance on where to invest and where to save, so your budget goes toward what adds real, lasting value.
Local crews who know Eastside permitting, inspections, and the way Pacific Northwest weather tests a home.
Our Woodinville basement finishing process
Each phase is inspected and documented, and we keep you updated so you always know what's happening and what's next.
Design and material selections come next, so finishes, fixtures, and pricing are locked in before demolition — no surprises mid-project.
Handoff includes a detailed walkthrough and a written warranty — not a crew that vanishes the moment the dust settles.
Frequently asked questions
How long does a basement bathroom addition 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.
Do you offer free estimates for basement bathroom addition near Woodinville?
Absolutely. We provide free, no-obligation in-home estimates throughout Woodinville and the greater Eastside, with transparent, itemized pricing.
Do you handle permits and inspections?
Yes. We manage permit applications, schedule inspections, and coordinate any required engineering so the work passes cleanly in Woodinville.
How much does a basement bathroom addition cost in Woodinville?
Most basement bathroom addition projects in Woodinville run $44,500 – $111,500, depending on scope, finishes, and existing conditions. After a free in-home consultation we provide a detailed written estimate so your Woodinville 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.
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Wet bars and kitchenettes for entertaining.
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