ADUs & conversions · Mukilteo, WA
Basement ADU Conversion in Mukilteo, WA
Turn a basement into a separate-entry dwelling unit.
Basement ADU Conversion in Mukilteo, WA
Looking for basement ADU conversion in Mukilteo? Xion Build is a licensed, bonded, and insured adus & conversions contractor delivering standout results for Mukilteo homeowners — start to finish, under one roof. Turn a basement into a separate-entry dwelling unit.
Mukilteo's bluff and waterfront homes call for weather-tight exteriors, decks, and remodels designed around the Sound views.
We write scope in plain terms: what we'll do, the materials, the sequence, and how any surprises are handled if something is uncovered.
What's included in your basement ADU conversion
A typical basement ADU conversion in Mukilteo can involve framing, permits, finishes, foundation — and we put the full scope in writing so you know exactly what's covered before work starts.
You get a single point of contact, licensed and insured trades, and clear communication from the first sketch to the final walkthrough.
How much does a basement ADU conversion cost in Mukilteo?
Most basement ADU conversion projects in Mukilteo fall between $87,000 – $196,000, 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 adus & conversions project — so there are no surprises later.
Why Mukilteo homeowners choose Xion Build
Meticulous job sites and clear daily communication, with respect for your home, your time, and your neighbors.
Local crews who know Eastside permitting, inspections, and the way Pacific Northwest weather tests a home.
One dedicated point of contact coordinates the entire job, so you're never chasing subcontractors or wondering who's responsible.
Our Mukilteo adus & conversions process
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.
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
Are you a licensed adus & conversions 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 free estimates for basement ADU conversion near Mukilteo?
Absolutely. We provide free, no-obligation in-home estimates throughout Mukilteo and the greater Eastside, with transparent, itemized pricing.
How much does a basement ADU conversion cost in Mukilteo?
Most basement ADU conversion projects in Mukilteo run $87,000 – $196,000, depending on scope, finishes, and existing conditions. After a free in-home consultation we provide a detailed written estimate so your Mukilteo price reflects the actual project — not a guess.
Do you offer a basement ADU conversion in Mukilteo, WA?
Yes. Turn a basement into a separate-entry dwelling unit. Xion Build is a licensed, bonded, and insured adus & conversions contractor serving Mukilteo and the surrounding WA communities.
How long does a basement ADU conversion take?
Timelines depend on scope and permitting. Once the plan is confirmed we give you a realistic schedule and keep you updated as the adus & conversions work progresses.
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