Home additions · Federal Way, WA

Bump-Out Addition in Federal Way, WA

Small cantilevered bump-outs to expand kitchens, baths, or dining.

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Bump-Out Addition in Federal Way, WA

Looking for bump-out addition in Federal Way? Xion Build is a licensed, bonded, and insured home additions contractor delivering standout results for Federal Way homeowners — start to finish, under one roof. Small cantilevered bump-outs to expand kitchens, baths, or dining.

Federal Way's established neighborhoods reward durable, value-driven remodels, roofing, and exterior work.

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 bump-out addition

A typical bump-out addition in Federal Way can involve windows, framing, foundation work, finishes — 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 bump-out addition cost in Federal Way?

Most bump-out addition projects in Federal Way fall between $42,500 – $127,000, 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 Federal Way homeowners choose Xion Build

Local crews who know Eastside permitting, inspections, and the way Pacific Northwest weather tests a home.

Transparent, written estimates with no hidden fees — you know what you're paying for before work begins.

Licensed, bonded, and insured in Washington — every project is built to meet or exceed code and backed by a written warranty.

Our Federal Way home additions 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.

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

What should we decide before starting a bump-out addition?

Your budget range, must-haves, timeline, and any finishes you already love. For home additions work we also review access, existing conditions, and whether permits are required in Federal Way.

How much does a bump-out addition cost in Federal Way?

Most bump-out addition projects in Federal Way run $42,500 – $127,000, depending on scope, finishes, and existing conditions. After a free in-home consultation we provide a detailed written estimate so your Federal Way price reflects the actual project — not a guess.

Do you handle permits and inspections?

Yes. We manage permit applications, schedule inspections, and coordinate any required engineering so the work passes cleanly in Federal Way.

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 bump-out 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.

Related services in Federal Way

Addition design & engineering

Architectural plans and structural engineering for additions.

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Room addition

Add a bedroom, office, or living space tied seamlessly into the home.

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Two-story great-room expansion

Vaulted, two-story living additions with structural steel where needed.

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Sunroom & four-season room

Insulated, conditioned sunrooms usable year-round.

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