SA SA Remodel Pros

Remodeling Guide

Waterproofing a Shower: Schluter, Kerdi & Linear Drains

How proper shower waterproofing works — Schluter-Kerdi membranes, Redgard, linear drains, and why it matters for a leak-free San Antonio bathroom.

Shower being waterproofed with orange Kerdi membrane, authentic job-site, natural light

Quick answer

How proper shower waterproofing works — Schluter-Kerdi membranes, Redgard, linear drains, and why it matters for a leak-free San Antonio bathroom.

Layered diagram of shower waterproofing assembly, brand navy and gold

What this guide covers

  • Schluter-Kerdi membranes
  • Redgard
  • Linear drains
  • Why waterproofing matters; porcelain slabs

Why this matters in San Antonio

Most San Antonio homeowners hit the same friction when planning a remodel: too many decisions, too many contractors, and a price that drifts upward once the work begins. The single biggest fix is a design-build process — one team owning design, materials, and construction under one contract. That’s the model we’ve used at SA Remodel Pros for more than 26 years across 2,000+ projects.

What we recommend

If you’re researching this question, the next step is usually a 20-minute conversation with a project coordinator. We can tell you whether your project is straightforward, complex, or something that needs structural input before any design work begins. There’s no commitment.

Things homeowners ask first

What is Schluter-Kerdi? — A bonded waterproofing membrane system for tiled showers.

Why do showers leak? — Almost always failed or missing waterproofing behind the tile.

This guide pairs with our bathroom remodeling service page, where you’ll find scope, pricing, and project gallery for the related work.

For a deeper dive, see our guide on Curbless Walk-In Shower Installation Explained — it covers the next set of decisions homeowners weigh on a project like this.

Frequently asked

Related questions

What is Schluter-Kerdi?
A bonded waterproofing membrane system for tiled showers.
Why do showers leak?
Almost always failed or missing waterproofing behind the tile.
How do I get started?
Call (210) 366-2380 or request a free in-home estimate. A project coordinator walks the scope with you and gives a realistic ballpark before any commitment.
Completed remodel

Have a remodel in mind?

A free in-home estimate gives you a realistic scope and ballpark before you commit.