Bald Eagle
Shower waterproofing membrane before tile installation

Ray Calder, Founder · February 15, 2026 · 5 min read

Waterproofing a Shower So It Lasts Thirty Years

The assemblies we use, why we flood test, and why we photograph every layer before tile.

Bonded membranes beat liners

A properly bonded sheet membrane over a sloped bed outperforms traditional pan liners in nearly every failure mode we have inspected.

Flood test, every time

Twenty-four hours of standing water before tile. It is a half-day of schedule that prevents a five-figure rebuild.

Tile is decoration. The waterproofing behind it is the actual product you are buying.

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  • 20+ years licensed, bonded and insured
  • Fixed-price proposals — no change-order games
  • Weekly photo updates through construction
  • Written workmanship warranty

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