Lamberth Waterproof Systems Fiberglass Waterproofing
Fiberglass shower pan installation by Lamberth Waterproof Systems

Austin & Central Texas

Waterproofing you'll never think about again.

Seamless fiberglass. No liners, no seams, nothing to fail. Thirty years and more than twenty thousand shower pans, every one warrantied for the life of the structure.

30+Years installing fiberglass
20,000+Shower pans in the ground
LifetimeWarranty, not twelve months

Selected work

Twenty thousand of these. Here are a few.

Shower pans, decks, stairs and commercial installs from jobs across Central Texas. Most of this disappears under tile the day after we finish.

Fiberglass waterproofing membrane in progress

A liner has seams. Fiberglass doesn't.

Sheet membranes and pan liners rely on overlaps, folded corners and taped joints. Every one of those is somewhere water can eventually get through. We bond a single continuous layer to the substrate instead. Nothing to separate, nothing to lift, nothing to fail as the house settles.

Fiberglass shower pan with curbless entry

Shower pans

The reason most people call us.

Seamless pans formed to your exact layout, including curbless entries and linear drains where a traditional liner has to be folded and fought with. Benches, seats, curbs and recessed niches are waterproofed as part of the same continuous membrane, not patched in afterward.

Those details are where most installations leak. On ours there is no joint to leak from.

Waterproofed exterior deck and stairs

Decks, balconies & stairs

The failures that get expensive.

An elevated deck over living space is the job where a small leak turns into framing damage and a much larger bill. Exterior stairs and landings are the same story, with more transitions to get wrong.

We seal the whole surface as one piece, up the walls and around every penetration, so water has nowhere to start.

Commercial fiberglass waterproofing installation

Commercial & specialty

If it holds water, we've sealed one.

Restaurant and bar areas that get hosed down nightly. Planters and retention walls holding wet soil against a structure. Dog wash stations, tub surrounds, window sills.

We work directly with homeowners and just as often with custom builders, remodelers and general contractors who need it done right the first time and on schedule.

What we waterproof

Everything we handle.

01

Fiberglass shower pans

Standard, curbless and linear drain. The core of what we do.

02

Shower seats, benches & niches

Waterproofed as part of the same seamless membrane, not added on.

03

Decks & balconies

Including elevated decks over living space, where failure costs the most.

04

Exterior stairs & landings

Sealed as one continuous surface across every tread and transition.

05

Tub surrounds & window sills

Wet-area transitions where tile meets something that must stay dry.

06

Planters & retention walls

Holding saturated soil off structure, indoors or out.

07

Restaurant & bar areas

Commercial wet areas that get washed down every night.

08

Dog wash stations

Residential and commercial. Yes, we get asked a lot.

How a job goes

The same four steps, twenty thousand times.

STEP 01

Walk the job

We look at the space, the drain, the substrate and the finish you're planning, then tell you what it actually needs. Not what we'd rather sell you.

STEP 02

Prep the substrate

Cleaned, dried and prepared so the fiberglass bonds properly. Skipping this is why other people's work fails.

STEP 03

Build the membrane

One seamless layer, formed into corners, up curbs and around every drain. No joints anywhere in the system.

STEP 04

Test and hand off

Flood tested where it applies, confirmed holding, then handed to you or your tile setter ready to finish.

Common questions

Things people ask.

What is fiberglass waterproofing?

A seamless membrane bonded directly to the substrate, forming one continuous barrier. Unlike sheet membranes or pan liners there are no overlaps or joints for water to find, which is why it's used where a leak would be expensive to fix.

How long does a fiberglass shower pan last?

We warranty every installation for the lifetime of the structure. Fiberglass doesn't degrade the way traditional liners do, so it lasts as long as the building does.

What areas do you serve?

Austin and the surrounding Central Texas area, for homeowners, builders, remodelers and commercial contractors.

Do you work with builders and contractors?

Constantly. A large share of our work comes from custom home builders, remodelers and general contractors, alongside direct residential and commercial jobs.

Can you do curbless and linear drain showers?

Yes, and they're a good fit for this system. There's no liner to fold around a linear drain, so the detail that's normally a headache becomes straightforward.

How do I get an estimate?

Call the office at 512-400-9008 or the cell at 512-789-2075, or send the form below. Tell us the type of job and roughly where you are.

Get an estimate

Tell us about the job.

Or just call.

Fastest way to get an answer.

Service areaAustin & Central Texas
WarrantyLifetime of the structure
Call 512-400-9008