Home additions · Seattle, WA
Garage Addition in Seattle, WA
Attached or detached garages framed, wired, and finished.
Garage Addition in Seattle, WA
Looking for garage addition in Seattle? Xion Build is a licensed, bonded, and insured home additions contractor delivering standout results for Seattle homeowners — start to finish, under one roof. Attached or detached garages framed, wired, and finished.
From Laurelhurst to Queen Anne, Seattle's older homes often need structural care alongside the kitchen, bath, and addition work that modernizes them.
A home addition lives or dies on the connection to the existing house — foundation, framing, and rooflines have to marry seamlessly so the new space feels original.
What's included in your garage addition
A typical garage addition in Seattle can involve insulation, foundation work, framing, windows — and we put the full scope in writing so you know exactly what's covered before work starts.
From room additions and bump-outs to second stories and full primary suites, we handle structural engineering and permits up front so there are no surprises.
How much does a garage addition cost in Seattle?
Most garage addition projects in Seattle fall between $49,500 – $149,000, 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 home additions project — so there are no surprises later.
Why Seattle homeowners choose Xion Build
Transparent, written estimates with no hidden fees — you know what you're paying for before work begins.
Local crews who know Eastside permitting, inspections, and the way Pacific Northwest weather tests a home.
Licensed, bonded, and insured in Washington — every project is built to meet or exceed code and backed by a written warranty.
Our Seattle home additions 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
Are you a licensed home additions 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.
How long does a garage 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 home additions work progresses.
How much does a garage addition cost in Seattle?
Most garage addition projects in Seattle run $49,500 – $149,000, 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.
Do you offer a garage addition in Seattle, WA?
Yes. Attached or detached garages framed, wired, and finished. Xion Build is a licensed, bonded, and insured home additions contractor serving Seattle and the surrounding WA communities.
Do you offer free estimates for garage addition near Seattle?
Absolutely. We provide free, no-obligation in-home estimates throughout Seattle and the greater Eastside, with transparent, itemized pricing.
Related services in Seattle
Mudroom & entry addition
Drop-zone mudrooms with lockers, benches, and storage.
View detailsIn-law suite addition
Self-contained suite with bedroom, bath, and kitchenette.
View detailsSunroom & four-season room
Insulated, conditioned sunrooms usable year-round.
View detailsFoundation & footings for additions
Engineered footings and foundations for new square footage.
View detailsWe also serve these areas