Home additions · Mercer Island, WA
Mudroom & Entry Addition in Mercer Island, WA
Drop-zone mudrooms with lockers, benches, and storage.
Mudroom & Entry Addition in Mercer Island, WA
Xion Build provides expert mudroom & entry addition in Mercer Island. As a trusted Mercer Island home additions contractor, we manage design, materials, permits, and every trade in-house so your project stays on schedule and on budget. Drop-zone mudrooms with lockers, benches, and storage.
Mercer Island projects often involve sloped lots, shoreline rules, and mid-century homes that benefit from thoughtful structural and design planning.
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.
What's included in your mudroom & entry addition
A typical mudroom & entry addition in Mercer Island can involve foundation work, roofline tie-in, finishes, framing — and we put the full scope in writing so you know exactly what's covered before work starts.
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.
How much does a mudroom & entry addition cost in Mercer Island?
Most mudroom & entry addition projects in Mercer Island fall between $48,500 – $145,000, 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 Mercer Island homeowners choose Xion Build
Honest guidance on where to invest and where to save, so your budget goes toward what adds real, lasting value.
One dedicated point of contact coordinates the entire job, so you're never chasing subcontractors or wondering who's responsible.
Transparent, written estimates with no hidden fees — you know what you're paying for before work begins.
Our Mercer Island home additions process
Design and material selections come next, so finishes, fixtures, and pricing are locked in before demolition — no surprises mid-project.
We pull the permits, schedule every trade in the right order, and protect your home, landscaping, and daily routine throughout the build.
It starts with a free, no-obligation consultation: what you want, the constraints, and a realistic budget range before you commit to anything.
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 Mercer Island.
Do you offer a mudroom & entry addition in Mercer Island, WA?
Yes. Drop-zone mudrooms with lockers, benches, and storage. Xion Build is a licensed, bonded, and insured home additions contractor serving Mercer Island and the surrounding WA communities.
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.
Do you offer free estimates for mudroom & entry addition near Mercer Island?
Absolutely. We provide free, no-obligation in-home estimates throughout Mercer Island and the greater Eastside, with transparent, itemized pricing.
How long does a mudroom & entry 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 Mercer Island
Addition design & engineering
Architectural plans and structural engineering for additions.
View detailsIn-law suite addition
Self-contained suite with bedroom, bath, and kitchenette.
View detailsHome office addition
A quiet, code-built dedicated workspace with proper electrical.
View detailsSecond-story addition
Build up to add bedrooms and baths while keeping your lot.
View detailsWe also serve these areas