Shower Leaks & Hidden Water Damage Repair in Seattle

A leaking shower rarely stops at the surface. We find the source, open only what’s necessary, repair damaged material, and rebuild the shower on a waterproofing system designed for Seattle homes.

*We're a full-service design-build team
Collage of bathroom remodels in west Seattle showing white subway-tile bath, green-tile shower, modern wood vanity, and contractors at work.

What Water Damage Looks Like Before It Becomes Obvious

Loose tile, dark grout, swollen trim, a soft wall, or a stain below the bathroom can all point to water moving where it should not. These real DuetRight bathroom projects show the kinds of assemblies we inspect and rebuild.

Loose Tile Is a Symptom

Tile that moves, cracks, or sounds hollow often means the bond or backer behind it has failed.

We remove the affected finish, inspect the substrate and framing, replace damaged material, then rebuild the waterproofing and tile layers in the right order.

Modern bath with white subway tile, grid-glass shower, black hex floor, wood vanity, round mirror, and a built-in niche.

The Leak May Be Behind the Wall

A shower can look fine while water escapes at a valve, corner, curb, niche, or failed transition.

We trace the path before closing anything up, repair the plumbing or waterproofing failure, dry and replace compromised material, and restore the finished surfaces.

Compact bath with tub-shower and niche, slim vanity with arched mirror, gray floor, and stacked laundry beside the toilet.

Rebuild the Assembly, Not Just the Appearance

New grout or caulk can hide a problem for a while; it cannot repair failed waterproofing.

When damage requires a larger rebuild, we install a continuous waterproofing system, seal every corner and penetration, and finish the shower so it is durable, cleanable, and built to last.

Bright resort-style bath with long floating wood vanity, slatted accent wall, and a glass double-shower with bench and recessed niche.
Service Area

Shower Leak & Water-Damage Repair Across Greater Seattle

Seattle’s rain and older housing stock make moisture management especially important. We work in houses and condos across Seattle and nearby communities, and we know how to separate an isolated repair from a problem that needs a deeper rebuild.

We regularly help homeowners throughout:

  • Alki
  • Admiral & North Admiral
  • The Alaska Junction
  • Fauntleroy
  • Arbor Heights
  • Gatewood
  • Morgan Junction
  • Highland Park
  • Delridge
  • Genesee Hill
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The Earlier You Investigate a Shower Leak, the Smaller the Repair May Be

What Makes Shower Leaks Hard to Diagnose

A stain that appeared out of nowhere. By the time water shows on a ceiling or at the base of a shower, it has usually been moving for a while.
No idea where it is coming from. A shower, a window, a skylight, a balcony and a roof can all leave the same brown mark on the same ceiling.
A quote before anyone looked. A grout problem and a failed waterproofing membrane look identical from the outside, and they are not remotely the same repair.
A repair that did not hold. The damage gets patched, the cause gets missed, and the same wall is open again two years later.

How We Diagnose and Rebuild

Diagnosis first, in writing. We find the source before anyone talks about scope, and you get the finding on paper — including what we would leave alone.
We open only what we have to. Enough to see the real extent of it and no more, because guessing wide is how a contained repair turns into a change order you never agreed to.
The cause gets corrected. Ventilation, a resealed penetration, a corrected slope, waterproofing rebuilt as a system underneath the tile — not new finishes over an old problem.
Rebuilt by the people who found it. The same crew diagnoses, repairs and rebuilds, so nothing gets lost between a moisture reading and a finished wall.

What the Repair Can Include

The right scope depends on where the water starts and what it touched. We keep the repair as focused as the evidence allows, and we explain any change before additional work moves forward.

Leak Investigation & Selective Demolition

We inspect visible symptoms, review likely paths, and open only the area needed to confirm the source and extent.

Plumbing, Drain & Valve Repairs

When the failure is at a valve, supply, drain, or connection, we repair it before rebuilding the surrounding assembly.

Substrate, Framing & Drywall Repair

We remove compromised material, dry the area, and replace damaged backer, framing, insulation, drywall, or trim as the approved scope requires.

Waterproofing & Shower Rebuild

We rebuild the shower zone as a system: sloped drainage, sealed corners and penetrations, continuous waterproofing, and inspection before finish work.

Tile, Microcement & Finish Restoration

We restore the finished surfaces with tile, microcement, grout, sealant, and transitions detailed for cleaning, movement, and long-term moisture control.

Ventilation, Paint & Trim

We finish the surrounding room with moisture-resistant materials, crisp trim and paint, and ventilation improvements when the approved scope calls for them.

..if it's in your bathroom, we can do it!
DuetRight

Built Back Correctly

Stopping the leak is only the first half of the job. The repaired area has to be dry, structurally sound, continuously waterproofed, and detailed so normal movement and cleaning do not reopen the same path.

Code & Permit Coordination

Navigating the city's requirements can be complex, so we handle it all for you. We manage all required permits including construction and electrical through SDCI and plumbing through Public Health–Seattle & King County, submitting everything via the Seattle Services Portal.

Inspection Before We Close the Wall

We verify repairs, waterproofing continuity, corners, penetrations, drainage, and moisture-sensitive transitions while the assembly is still visible—not after the final surface is installed.

Moisture-Resistant Construction

We use materials and detailing suited to Seattle bathrooms: continuous waterproofing in the wet zone, compatible backer and sealants, mold-resistant materials where appropriate, and ventilation that exhausts outdoors.

Getting Started

From Leak Concern to a Clear Repair Plan

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01

Show Us the Symptoms

Send photos and tell us what you notice: movement, staining, soft material, a drip, odor, or damage in the room below.

02

Inspect & Define the Unknowns

We inspect the likely source and path, explain what can be confirmed now, and identify conditions that require selective opening.

03

Approve the Repair Scope

You receive a clear quote and schedule for the known work, with a documented plan for any concealed damage found after opening.

Featured Reviews
What Seattle Homeowners Say After the Wall Goes Back
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4.9 on Google
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5.0 on Home Advisor
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5.0 on Yelp

"The Bathroom I Wanted"

"I used DuetRight to renovate my bathroom. As expected, they did an amazing job and were able to work with me to design the bathroom I wanted. Super happy and I look forward to working with them again. Thank you guys!"

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SatyaJit P.

"Whole Process Stress-Free!"

"The DuetRight team did an incredible job remodeling the single bathroom in my condo, working with me every step of the way designing, picking out materials, purchasing, and coordinating. They were very communicative and organized making the whole process stress-free!"

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Tom S.

"Solved the Issue"

"DuetRight helped us to re-tile our shower after we discovered a rotten backboard causing the previous tiles to fall off. The team efficiently solved the issue, leaving us with a beautifully tiled, durable shower."

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Taylor H.

Our Team
Meet the Seattle Crew Who Will Open the Wall
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Angelo Russoniello

Co-Founder, Director of Operations
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Stan Miron

Co-Founder, Project Manager
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Vladimir Moroz

Tiling Architect, Team Guide
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Serhii Potavov

Tile Specialist Assistant
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Austin Thomas

Customer Specialist

FAQs

More questions? Don't be shy. Give us a call!

Call Us
How do you find a shower leak without tearing the whole bathroom apart?
Leak diagnosis is its own piece of work for us, not a sales visit. We start with what you can see — a stain, a soft spot, a smell — then test to narrow down whether the water is coming from failed waterproofing behind the tile, the drain connection, the valve, or something above the bathroom entirely. Those are four different repairs at four different scopes. We open only what we need to open in order to know which one you have, and you get the finding in writing before anyone talks about scope.
Do I need a permit to repair water damage?
It depends how far the water got. Replacing tile and finishes usually does not require one. Replacing damaged framing, altering plumbing, or changing a wall generally does. We pull construction, mechanical, and electrical permits through SDCI and plumbing through Public Health—Seattle & King County, submit through the Seattle Services Portal, and meet the inspectors on site. We never close a wall before the work is approved, which matters more than usual on water damage: while it is open, the wall is the evidence.
Is the mold in my bathroom dangerous?

We are a general contractor, not a health authority, so we will not hand you an opinion we are not qualified to give. What we will do is tell you exactly what we find, what it will take to remove it, and what caused it. For health effects, the EPA's guidance on mold is the right place to start, and your doctor is the right person to ask about your own symptoms. What we can tell you from the work itself: mold in a Seattle bathroom is almost always a moisture problem with a specific cause, and the cause is fixable.

How do I know it will not come back?

Because the cause gets corrected, not just the damage. The pattern we see most is a repair done well and a cause left alone — then the same homeowner calls again in two years. Very often the cause is ventilation: a fan that is undersized, ducted into the attic instead of outside, or never run long enough. Sometimes it is a penetration nobody sealed, a slope sending water the wrong way, or waterproofing that was never built as a system behind the tile. We tell you which one you have, and correcting it is part of the job rather than an upsell.