About Our Bathroom Renovation Service in Seattle
Hiring Kolmo for Bathroom Renovation in Seattle
Kolmo Construction is a licensed Seattle general contractor based at 4018 NE 125th St, Seattle. We take on bathroom renovation in Seattle, Bellevue, Kirkland, Redmond, Sammamish, Issaquah, Renton, Kent, Federal Way, Mercer Island, Shoreline, Tacoma, Lakewood, Puyallup, Everett and Lynnwood.
- License, bond and insurance
- Washington State General Contractor License KOLMOL*753JS, issued by WA Labor & Industries. The license, bond and insurance records are listed on kolmo.io/verify, each with a link to the state lookup.
- Reviews
- 5.0 stars from 24 Google reviews. Read them on Google
- Bathroom Renovation projects
- The Transformation — Renton, WA
- Price
- Planning prices for a Seattle job are in the cost question below and in the bathroom renovation calculator, which itemizes materials, labor and, where the job needs one, Seattle's permit fee. The calculator shows a range from 15% below to 15% above its total. It is a planning figure, not a quote.
- How quoting works
- Request a quote or call (206) 410-5100 (Mon-Fri 8am-5pm, Sat 9am-1pm). Kolmo meets you at the house to see the job, and the quote comes back in writing, itemized line by line. Frederic Atallah runs Kolmo's site walks, scope, crews and schedule, and is the owner of record on the license.
Key Features & Benefits
Custom vanity installation
Floor and wall tile installation
Lighting and fan upgrades
Shower and tub replacement or conversion
Toilet and plumbing fixture installation
Waterproofing and ventilation improvements
Small bathroom layout optimization
Our Bathroom Renovation Process
Initial Consultation
Planning and Design
Demo and Prep
Plumbing and Electrical Work
Installation
Final Walkthrough
Initial Consultation
We meet to understand your goals, space, and budget.
Planning and Design
We create a basic layout plan and help select materials and fixtures.
Demo and Prep
We remove old finishes and fixtures, inspect plumbing, and prepare the space.
Plumbing and Electrical Work
We install or reroute pipes, electrical lines, and outlets as needed.
Installation
We install tile, cabinetry, lighting, plumbing fixtures, and accessories.
Final Walkthrough
We check everything with you, make adjustments if needed, and clean the space.
Plan Your Bathroom Renovation Project
How Much Does a Bathroom Remodel Cost in Seattle? (2026 Guide)
Seattle bathroom remodels run $1.7K–$6.5K cosmetic, $13K–$17.5K standard, $22.3K–$45.1K+ full gut in 2026. Real size-by-scope ranges, permit fees, ROI, and a free calculator.
Read the guideTub-to-Shower Conversion Cost in Seattle (2026): $6K Swap to $40K Full Gut
A tub-to-shower conversion in Seattle runs $6,000–$8,150 on its own, $12,600–$17,000 inside a standard remodel, $29,300–$39,700 as a full gut with a walk-in shower. 2026 line items, unit prices and permits.
Read the guideEstimate your bathroom renovation cost
Configure scope and get an itemized material + labor breakdown for your specific Seattle project.
Open the calculatorBathroom Renovation in Seattle: Common Questions
How much does a bathroom remodel cost in Seattle?
Kolmo's estimator prices a 35–45 sq ft Seattle full bathroom at about $14,100–$16,400 for a standard remodel and $22,300–$25,000 for a full gut; a cosmetic refresh runs $2,600–$3,000. A 70–110 sq ft primary bathroom runs about $23,200–$32,900 standard and $33,400–$45,100 full gut. Each is ±15%, priced 2026-09-25, and includes demo, tile, fixtures, vanity and labor.
How long does a bathroom renovation take?
A standard bathroom remodel takes 3–5 weeks. A full primary bathroom remodel may take 5–7 weeks depending on custom tile work and fixture lead times. Adding radiant floor heating adds approximately one week to the timeline.
Do I need a permit for a bathroom remodel in Seattle?
Permits are required in Seattle for bathroom remodels involving plumbing relocation, new electrical circuits, or structural changes. Simple cosmetic updates such as new fixtures in the same location and tile replacement typically do not require permits.
Ready to Start Your Bathroom Renovation Project in Seattle?
Contact us today to schedule a free consultation and get a detailed quote. Our licensed team is ready to bring your vision to life with expert craftsmanship and attention to detail.
Or call us directly at (206) 410-5100