Tub to Shower Conversion in South Florida: The Complete Guide

Tub-to-shower conversion in Miami-Dade and Broward counties is governed by the Florida Building Code (FBC), Residential Volume, with the additional overlay of High-Velocity Hurricane Zone (HVHZ) standards that impose stricter waterproofing and fastening requirements than most of the country. Every conversion that alters the plumbing rough-in — moving the drain, relocating the valve, or changing supply lines — requires a permit. Haven pulls all required permits and schedules every inspection; we never ask a homeowner to chase down their own paperwork.

South Florida's subtropical humidity is the other defining factor. A standard bathtub surround is essentially a sealed acrylic basin surrounded by grout joints, and grout joints are where mold colonizes. In a climate where indoor humidity can exceed 70 percent for six months of the year, those joints degrade faster than they would in a dry climate. Replacing that tub with a properly waterproofed, curbless or low-threshold shower — using a membrane system like Schluter Kerdi or Laticrete Hydro Ban applied behind the tile — removes the biggest moisture-trap in the bathroom. Our crews have been doing this work in Brickell high-rises and Coral Gables bungalows long enough to know that the waterproofing phase is where the job either earns its warranty or doesn't.

For homeowners who are weighing a more comprehensive project, our Full Bathroom Remodel service adds new flooring, vanity, and lighting to the same timeline. But for the large portion of South Florida homeowners who simply want the tub gone and a great shower in its place, a focused conversion is the faster, more cost-efficient path.