Residential service
Wet Room Conversion in Irvine, CA
Irvine Kitchen Remodeling Pros is Orange County's trusted expert in wet room conversion, specializing in full-floor waterproof membrane installation, linear drain setting, and curbless threshold detailing. We offer underfloor heating integration and frameless glass screen fitting.
Our team provides complete design-build project management, delivering step-free, fully tanked bathrooms for Irvine homes alongside durable, code-compliant construction in the only room built to get wet everywhere. Fully licensed, insured and bonded, we handle everything from converting a single shower alcove to tanking an entire bathroom floor to wall.
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Tell us about your kitchen and we will call you back with next steps.
Or call (949) 749-0771. Calls only, we do not receive text messages.
- Licensed, Insured & Bonded
- Itemized written estimates
- Irvine and south Orange County
From substrate recess and fall calculation to membrane lapping at every junction, drain positioning and the final punch list, our team handles every part of the job. Serving Irvine, Newport Beach, Quail Hill and Laguna Niguel, we ensure a schedule you can plan around and deliver reliable, professional, durable results on every wet room project.
What a Wet Room Is, Precisely
A wet room is a waterproof room, usually equipped with a shower, designed to eliminate moisture damage rather than merely resist it, and it is compatible with underfloor heating.
That definition carries the whole job. In a conventional bathroom the waterproofing is a box: a shower pan and the walls around it, with everything outside that box relying on staying dry. In a wet room the waterproofing is the room. The floor is tanked wall to wall, the walls are tanked to height, and the shower has no tray and no curb because the floor itself is the tray.
The visible result is a bathroom with no step anywhere and often no shower door. The invisible result is a continuous membrane with no junction left unprotected, which is the part you are actually buying.
Why People Convert
Step-free access. This is the strongest reason. A wet room is the only bathroom type with genuinely no threshold to cross, which is why it is the natural answer for aging-in-place work and for anyone using a walking aid or a chair.
Small rooms feel bigger. Removing a tray, a curb and an enclosure removes every visual break. A tight hall bath reads as a single continuous space.
Cleaning. No shower tray edge, no enclosure track, no seal to go black.
Underfloor heating. A tanked floor and underfloor heating go together, and a heated floor is what keeps a wet room from feeling cold, which is the one legitimate complaint about them.
It stops the leak problem at the source. In a conventional bathroom the failure point is the junction between the waterproofed box and the unprotected floor around it. A wet room has no such junction.
What the Build Actually Involves
This is where wet rooms are won or lost, and it is worth understanding before you commit.
Fall. The floor has to slope to the drain across the shower zone, and often across more of the room, at a consistent rate. That fall has to be built into the substrate, not created with extra tile adhesive.
Substrate recess. To keep the finished floor level with the rest of the house, the structure under the wet area usually has to drop. On a slab-on-grade Irvine home that means working the slab. On a raised or upper floor it means working within the joists, which is constrained by their direction and depth.
Drainage. A linear drain along a wall or at the threshold lets the floor fall in one direction, which is easier to tile with large-format material and reads cleaner. A centre drain needs fall from four directions and suits smaller tile.
The membrane. Continuous, lapped at every junction, carried up the walls to height, sealed around the drain flange and at every penetration. This is the entire product.
Tile choice. A wet room floor is a walking surface that is wet more often than a normal bathroom floor, so slip resistance matters and smaller formats with more grout line give more grip. It is the one room where large-format is not automatically the better answer.
Containment. Even a doorless wet room needs the water to stay in a zone. That is a combination of fall, a glass screen and the position of the shower head, and it is the difference between a wet room and a wet bathroom.
Wet Room, Curbless Shower, or Neither
These get used interchangeably and they are not the same thing.
| Wet room | Curbless shower | Conventional shower | |
|---|---|---|---|
| Waterproofing | Whole room tanked | Box, extended at the threshold | Box only |
| Threshold | None anywhere | None at the shower | Curb |
| Screen or door | Optional | Usually a screen | Usually an enclosure |
| Build complexity | Highest | Middle | Lowest |
| Best for | Step-free access, small rooms | Step-free access in a normal bathroom | Everything else |
A curbless shower delivers most of the accessibility benefit for less work, and for many Irvine bathrooms it is the right answer. We will say so when it is. A full wet room earns its extra cost where the room is very small, where there must be no threshold anywhere at all, or where the whole-floor waterproofing is the point.
Where It Works in Irvine Homes
Single-level tract homes across Woodbridge, Northwood and University Park are the easiest conversions, because the slab can usually take a recess and there is no floor structure below to protect.
Second-floor bathrooms and condos are more demanding. In a condo there is a unit below, so the consequence of a membrane failure is somebody else's ceiling, and many associations have their own requirements for work of this kind. We work to that standard as a matter of course and prepare the association submittal where one is needed.
How It Runs
- Measure and consultation, including checking the floor structure, no charge.
- Layout, drain type and fall drawn before any selection is made.
- Itemized written proposal.
- Permits where plumbing or circuits move, and association submittal for condos.
- Demolition, substrate recess, drain set, framing and rough-in, inspections.
- Membrane installed and tested, underfloor heating laid.
- Tile, screen measured after tile, fixtures trimmed.
- Punch list and walkthrough.
Three to five weeks on site for most conversions, longer where the substrate work is significant or a selection has a long lead time.
Areas We Cover
We convert wet rooms throughout Irvine, including 92602, 92603, 92604, 92606, 92612, 92614, 92618 and 92620, across the Woodbridge, Northwood, Turtle Rock, Quail Hill, University Park, Walnut, El Camino Real and Portola Springs villages, and across the surrounding cities.
Services Related to Wet Room Conversion
Frequently Asked Questions
Will the whole bathroom get wet?
Not if it is built properly. Fall, a glass screen and shower head position keep the water in a zone. The whole-floor waterproofing exists to make failure impossible, not because the whole floor is meant to be soaked.
Can a wet room go on a second floor?
Yes, but the floor structure decides how. The substrate has to drop to keep the finished floor level, and joist direction and depth determine whether that is straightforward.
Do wet rooms feel cold?
They can, which is why we pair them with underfloor heating almost every time. A tanked floor and a heated floor go together naturally.
Is a wet room a good idea in a small bathroom?
It is one of the best applications, because removing the tray, curb and enclosure removes every visual break in a room that has no space to spare.
Which is better, a linear drain or a centre drain?
A linear drain lets the floor fall in one direction, which suits large-format tile and reads cleaner. A centre drain needs fall from four directions and works better with smaller tile.
What tile should go on a wet room floor?
Something with real slip resistance. Smaller formats give more grout line and more grip, which matters more here than in a bathroom where the floor is usually dry.
Is the membrane tested before tiling?
Yes. The point of a tanked floor is that it cannot fail, and the time to find a defect is before the tile goes down, not two years later.
Can a wet room be built in a condo?
Yes, with more care, because there is a unit below and the association usually has requirements. We build to that standard and prepare the submittal.
Book the Site Visit
We will check the floor structure, tell you whether a full wet room or a curbless shower is the right answer for your room, and put it in writing.
Licensed, Insured & Bonded. Calls only, we do not receive text messages.
Request a FREE Quote!
Tell us about your kitchen and we will call you back with next steps.
Or call (949) 749-0771. Calls only, we do not receive text messages.