SEMCO field notes

cost guides.

Prep, application and troubleshooting for basements, roofs, showers, pools and more, written by the team that makes SEMCO.

1 article

SEMCO Liquid Membrane rolled onto shower walls before tilingbathroom

Sep 4, 2026 · 6 min read

What Does It Cost to Waterproof a Shower Before Tiling? 2026 DIY vs Pro Breakdown

Professional shower waterproofing runs $450 to $2,500 depending on scope. A DIY liquid membrane and fabric reinforcement costs about $150 to $200...

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