Lamberth Waterproof Systems logo Lamberth Waterproof Systems Fiberglass Waterproofing

Austin & Central Texas

The warranty, and the questions we get asked most.

If yours isn't here, call the office. We would rather talk it through than have you guess.

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 is the warranty, and what does it cover?

Every installation we do is warrantied for the life of the structure it is installed in, and it runs with the building rather than with the owner. The membrane is what we build and the membrane is what we stand behind: if water gets through the system we installed, that is ours to put right. Fiberglass does not degrade the way a traditional liner does, so it lasts as long as the building does. If you have one of ours and have a question about what it covers, call the office and ask.

Why can you offer a warranty that long?

A warranty is a statement about how often something fails. Ours is long because the failure modes that shorten most waterproofing warranties are not present in a seamless bonded membrane. A pan liner is a flat sheet folded into a box, taped at the corners and clamped at the drain: it has joints by design, and joints are what age. Fiberglass is formed as one continuous layer bonded to the substrate, so there is no lap to separate, no fold to open and no tape to let go as the house settles.

Do you test the pan before the tile goes down?

The plumbing code test is specific: drain plugged watertight, the pan filled to at least two inches measured at the threshold, held at least fifteen minutes, checked for any evidence of leakage. A pan that holds water on the day it is built is not going to start leaking because someone tiled over it. That is the point of testing before the tile goes down rather than finding out afterwards. More about how the pans are built →

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 estimate form. Tell us the type of job and roughly where you are.

From the job book

The part you never see again.

Once tile goes down, the membrane is sealed in for the life of the building. That is precisely why it is worth getting right, and why the warranty runs as long as it does.

Rectangular grey shower pan sloped to a capped drain with membrane turned up the surrounding walls
Rectangular grey shower pan sloped to a capped drain with membrane turned up the surrounding walls
Rectangular shower pan coated dark grey, membrane turned up walls to a level line, capped drain
Rectangular shower pan coated dark grey, membrane turned up walls to a level line, capped drain

Still deciding? Get an estimate or call 512-400-9008.

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