Bathroom Remodeling in Mercer Island
Design-build bathroom remodeling for Mercer Island homes — 35 to 40 minutes north of our Milton headquarters. We work throughout North End Town Center, First Hill, East Seattle and the rest of Mercer Island.
Bathroom Remodeling in King County
Your bathroom project, built for Mercer Island homes
Good bathroom work starts with the homes it happens in — and after five generations across the South Sound, we know Mercer Island's.
Mercer Island is a showcase of Northwest mid-century architecture, with 1950s-70s ramblers, post-and-beam contemporaries, and daylight basements on wooded lots, plus Lake Washington waterfront estates ringing the shoreline.
Mercer Island clients typically want their mid-century home's character kept intact while everything inside is brought to a high modern standard, and that balance of restraint and craft is exactly our lane. The City of Mercer Island runs its own development services department with careful review of tree retention and critical slopes, so we front-load those studies in design. Whole-house remodels and major kitchen projects dominate here, with waterfront properties adding shoreline permitting to the mix.
- Permits handled with King County
- In-house 3D design before we build
- Licensed, bonded & insured — WA #HOMERDB750MH
- Financing assistance for Mercer Island homeowners
Bathroom projects across Mercer Island
Neighborhoods we regularly work in:
- North End Town Center
- First Hill
- East Seattle
- Mercerwood
- The Lakes
- South End
ZIP 98040 · King County
Bathroom Remodeling nearby
Why homeowners choose us
Bathroom Remodeling the design-build way
A great bathroom is equal parts sanctuary and machine — it has to feel like a retreat and perform flawlessly in the wettest room of the house. Home Renovation Design & Build remodels bathrooms across Mercer Island with a design-build process that gets both halves right: our in-house designers render your new bathroom in 3D, down to the tile pattern and vanity hardware, while our build team executes the waterproofing, plumbing, and ventilation details that determine whether a bathroom lasts five years or fifty.
In the Puget Sound climate, moisture management isn't optional — it's the whole game. We install modern waterproofing membrane systems behind every shower, size ventilation properly, and pull all plumbing and electrical permits with your King County jurisdiction ourselves. Backed by five generations of building experience and fully licensed and insured (WA license HOMERDB750MH), we deliver bathrooms that look like a boutique hotel and are built like a vault.
Waterproofing done to a higher standard
Full membrane shower systems, sloped and flood-tested pans, and sealed penetrations — the invisible work that prevents the rot and mold failures common in older bathrooms.
Spa-level design in 3D first
Tile layouts, vanity styles, glass configurations, and lighting are all modeled in photorealistic 3D so you can refine the design before a single tile is ordered.
Curbless showers & aging-in-place options
Zero-threshold entries, comfort-height fixtures, and blocking for future grab bars — luxury and accessibility designed in from the start, not bolted on later.
Craftsman tile setting
Level lines, tight miters, aligned grout joints, and properly built niches — tile work is where bathrooms are won or lost, and ours is done by people who care.
One fixed price, one short timeline
Fixtures and tile are selected and on site before demolition, so your bathroom isn't out of commission a day longer than necessary — and the contract price holds.
Warrantied, permitted, insured
Every bathroom is permitted, inspected, and covered by our written workmanship warranty.
The process
How your Mercer Island project unfolds
In-home assessment
We evaluate your existing bathroom — layout, plumbing locations, ventilation, signs of moisture trouble — and discuss your goals and budget honestly.
Design studio & fixed quote
Our designers develop your bathroom in 3D, guide fixture and tile selections, and produce a fixed-price proposal with the complete scope in writing.
Permits & procurement
We file plumbing and electrical permits, then order and inspect every fixture, tile, and glass component before we schedule demolition.
Demolition through detail work
Contained demo, rough plumbing and electrical, inspections, waterproofing, tile, fixtures, and glass — executed in tight sequence with daily cleanup.
Final inspection & warranty handoff
We flood-test, inspect every detail with you, complete the punch list, and deliver your warranty documentation.
Investment
What bathroom projects cost
Bathroom remodels in the Mercer Island area typically range from $25,000–$45,000 for a full hall-bath renovation to $50,000–$70,000+ for primary bathrooms with custom tile showers, double vanities, and layout changes; luxury primary suites can exceed $90,000. Estimates are always free, and financing is available to make the numbers work.
Financing assistance available
We help Mercer Island homeowners find financing that fits their project and budget — ask about options during your free consultation.
Get My Free EstimateFAQs
Bathroom Remodeling questions in Mercer Island
How long does a bathroom remodel take?
A typical full bathroom remodel takes 3–5 weeks of construction; larger primary bathrooms with layout changes run 5–8 weeks. Design, selections, and permitting add several weeks up front, but pre-ordering all materials keeps the construction phase compact.
Are permits required for bathroom remodels in Mercer Island?
Yes — any project touching plumbing or electrical requires permits and inspections, which we handle entirely. Inspected work protects you from hidden failures and problems at resale.
What should I budget for a bathroom remodel?
Most full bathroom remodels in the Mercer Island area land between $25,000 and $70,000 depending on size, tile scope, and whether the layout changes. We'll give you a specific fixed price after the design phase — and a realistic range at your free consultation.
Can we still use the house during the work?
Absolutely. We contain the work zone, protect flooring along access paths, and clean up daily. If it's your only bathroom, we sequence the work to minimize days without a functioning toilet and shower and can discuss temporary solutions.
How do I know the shower won't leak later?
Because we build it not to: full waterproofing membranes, flood-tested pans, and permitted inspections at every rough-in stage — then we back it with our written workmanship warranty. We're licensed and insured (HOMERDB750MH), and moisture detail is where our five generations of experience earns its keep.
Free consultation
Start your Mercer Island bathroom project
Tell us about your project and we'll reply within one business day — serving North End Town Center, First Hill, East Seattle and all of Mercer Island, with zero obligation.