Bathroom Remodeling

Reviewed by Matan Four, Owner · Licensed & insured WA contractor, WA Lic. #DAWNCCW747K2 · Updated October 2026

Why a Professional Bathroom Remodel Matters

A bathroom remodel is one of the few home projects you'll feel every single day. Done right, it gives you more storage, a shower you actually look forward to, and a room that stays dry and fresh for decades. Done wrong, it's the most expensive room in the house to fix, because water damage hides behind tile until it's serious.

Dawn Construction remodels bathrooms for homeowners in Renton, Bellevue, Kent, Seattle, and across King and Snohomish counties. One team handles the whole project, from design and permits to plumbing, electrical, tile, and the final walkthrough, so you're not coordinating five different trades.

Signs Your Bathroom Needs a Remodel

• A tub you never use that could become a larger, easier-to-access walk-in shower.
• Not enough storage or counter space for the people who share the room.
• Dated fixtures, finishes, and lighting that make the whole house feel older.
• Accessibility needs: a curbless shower, grab bars, or a comfort-height toilet so you can stay in your home longer.
• Getting ready to sell: an updated bathroom is one of the first things buyers notice.

Warning Signs That Need Attention Now

Some bathroom problems can't wait for a full remodel. If you see any of these, call us before the damage spreads.

Types of Bathroom Remodels

Not every bathroom needs a full gut. Here's how the most common project types compare, so you can see where your project fits before the estimate.

Bathroom Remodel Types Comparison

Bathroom Refresh

The fastest way to a new-looking bathroom. We keep the layout and plumbing where they are and replace what you see: vanity, countertop, faucets, mirror, lighting, flooring, and paint.

Tub-to-Shower Conversion

Swap a rarely used tub for a larger walk-in shower. We remove the tub, rework the drain, waterproof the new shower, and finish it with tile or a solid-surface wall system, with options like a low or curbless entry, a bench, and grab bars.

Walk-In & Curbless Showers

A walk-in shower opens up the room and makes the bathroom easier to use at every age. We build low-threshold and curbless (zero-step) showers with custom tile, frameless glass, built-in niches and benches, all on a fully waterproofed, properly sloped base so water stays where it belongs.

Full Bathroom Remodel

Everything comes out down to the studs, so we can fix hidden damage, update plumbing and electrical, and build a new waterproofed shower or tub surround that will last for decades.

Primary Bathroom Remodel

For larger primary suites: double vanities, custom tile showers, freestanding tubs, heated floors, and layouts reworked around how you actually use the room.

Faster Bathroom Remodels, Without Tearing Down Walls

Most homeowners want two things from a bathroom remodel: a great result, and their bathroom back as soon as possible. We plan every project around both. Instead of gutting the room by default, we look for the fastest, least disruptive way to get you the bathroom you want, and we always find a way.

• We design around what's already there. Keeping the toilet, shower, and sink close to their current locations, and working within your existing walls, avoids major demolition, keeps dust and noise down, and saves time.
• Less demolition often means a simpler permit path. Projects that don't move walls or relocate plumbing usually need fewer approvals and shorter reviews. When a permit is required, we file it on day one and book inspections early, so paperwork never holds up your project.
• Everything is ordered before we start. Tile, vanity, fixtures, and glass are on hand before demo day, so there's no waiting mid-project with a torn-out bathroom.
• One team, back to back. Our own crew handles each trade in sequence, with no gaps waiting for outside subcontractors to show up.

Our Bathroom Remodel Process

Step 1: Free In-Home Estimate

We measure the room, look for signs of hidden damage, talk through your goals and budget, and send you a detailed written estimate.

Step 2: Design & Selections

We finalize the layout and help you choose tile, vanity, fixtures, and lighting. Want to see it first? We can create a 3D rendering.

Step 3: Permits & Ordering

We file any required permit and order every material up front, so work doesn't stall once your bathroom is torn out.

Step 4: Demolition & Rough-In

We protect the rest of your home, remove only what needs to go, repair any hidden damage, and complete plumbing and electrical rough-in and inspection.

Step 5: Waterproofing & Tile

Backer board, a continuous waterproofing membrane, and tile: the part that decides how long your bathroom lasts, so we never rush it.

Step 6: Finish & Final Walkthrough

Vanity, fixtures, glass, and paint go in, then a final inspection and a walkthrough with you to make sure everything is exactly right.

Bathroom Waterproofing & Ventilation

Why Waterproofing Matters

Grout and tile are not waterproof. What keeps water out of your walls is the membrane behind them. Western Washington's damp climate makes this even more important: once moisture gets into the framing, it rarely dries out on its own.

Common Leak Points in Bathrooms

• Shower valves, niches, and benches where the membrane is cut or folded
• The joint between the shower pan and the wall
• Around the toilet flange and tub drain
• Window sills inside showers
• Unsealed exhaust fan ducts that drip condensation back into the ceiling

Benefits of a Professional Bathroom Remodel

• Fewer repairs: a properly waterproofed shower prevents the rot and mold that cause the costliest bathroom repairs.
• Lower water bills: new low-flow fixtures use less water without sacrificing pressure.
• More comfort: better lighting, storage, and ventilation make the room easier to use every day.
• Safer for every age: slip-resistant floors, grab bars, and low-entry showers.
• Higher home value: updated bathrooms are among the first things buyers look for.

How Big Should Your Bathroom Exhaust Fan Be? Sizing Guide

An undersized fan is the most common reason bathrooms grow mold. Fan capacity is measured in CFM (cubic feet of air per minute). Industry guidelines from the Home Ventilating Institute (HVI) recommend:

Recommended Exhaust Fan Size by Bathroom Size

What This Means for Renton-Area Homeowners

In our climate, the fan matters as much as the size. It must be ducted to the outside, never into the attic, and it should run long enough after a shower to clear the steam. A quiet fan (rated at 1.0 sone or less) is one people actually turn on. We include the right fan in every bathroom remodel.

Bathroom Remodel Cost – What to Expect

Every bathroom is priced individually, because the room, the materials, and the scope decide the cost. Keeping plumbing where it is and choosing standard fixtures keeps the price down; custom tile, a curbless shower, and layout changes add to it. Your exact price comes from your free in-home estimate, in writing.

Factors That Affect Bathroom Remodel Cost

What's Included in Our Service

• Free in-home estimate and a detailed written quote
• Design help and material selection, with optional 3D rendering
• All permits and inspections, handled for you
• Protection of the rest of your home and daily cleanup
• Licensed plumbing and electrical work
• Final walkthrough with you before we call the job done
• One-year workmanship warranty on all completed work

The only way to know your number is an in-home estimate. Ours is free, and you get it in writing with no pressure.

Permits & Codes for Bathroom Remodels in Washington

In Washington, any contractor you hire should be registered with the Department of Labor & Industries (L&I), and plumbing and electrical work must be done by licensed trades. Most cities, including Renton, Bellevue, Kent, and Seattle, require a permit when a remodel moves plumbing, adds electrical circuits, or changes walls, windows, or ventilation.

The good news: when we keep your existing layout and walls, many bathroom projects need only a simple permit, or none at all for purely cosmetic work. We'll tell you exactly what your project needs at the estimate, before any work starts.

Where a permit is required, skipping it can cause problems when you sell or file an insurance claim. We handle the permit application, schedule every inspection, and make sure the finished work passes, so it's done right and on record.

DIY vs. Professional Bathroom Remodel

Good DIY projects include painting, new hardware, re-caulking, or swapping a mirror or light fixture in the same spot. Anything behind a shower wall, or that moves plumbing or wiring, is worth a professional.

What Makes Our Bathroom Remodels Different

Why Homeowners Choose Dawn Construction

• One team, start to finish: design, permits, plumbing, electrical, tile, and finish work under one roof.
• Fast without shortcuts: we plan around your existing walls and plumbing and keep the crew moving.
• Built for Northwest moisture: waterproofing and ventilation done right on every project.
• Clear pricing: a detailed written estimate before any work starts.

Our Service Promise

We show up when we say we will, keep your home clean every day, and don't call a project done until you're happy with every detail. Every completed project is backed by our one-year workmanship warranty.

FAQ – Bathroom Remodeling

Other Services We Provide

Bathroom Remodeling Across 9 Western Washington Counties

From our offices in Renton and Mukilteo, we remodel bathrooms in 45 cities, from Bellingham to Olympia. See the full service area.

Don't see your city? Contact us or call (206) 672-1711.