Tub to Shower Conversion in South Florida

Tub to shower conversion is the single most requested bathroom upgrade in South Florida's housing stock, where pre-1990s homes and condos were built with one or two full tubs that sat unused once the kids grew up. The Florida Building Code requires only one bathtub or shower per dwelling unit — so as long as one tub remains in the home, you are fully code-compliant removing another. That small code detail opens the door for millions of homeowners to reclaim square footage without any legal hurdle.

South Florida's subtropical climate adds a layer of urgency most northern contractors never think about. High humidity and salt air accelerate mold growth behind old tub surrounds. Acrylic tub decks crack. Caulk joints fail within a few years. A tub to shower conversion done with a full cement board or Schluter Systems KERDI waterproofing membrane eliminates those moisture traps permanently. Proper waterproofing is not optional here — it's what separates a five-year install from a twenty-year one.

Historic neighborhoods like Coral Gables and Coconut Grove have some of the oldest plumbing in Miami-Dade. A tub to shower conversion in those homes often reveals cast-iron drain lines and galvanized supply pipes that benefit from an upgrade during the same project. Haven's licensed plumbers assess the existing rough-in during the free estimate so there are no surprise change orders once the tile comes down.

The tile or stone you choose sets the look, but the substrate underneath determines how long it lasts. We build every shower pan on a properly sloped mortar bed — typically a 1/4-inch drop per foot toward the center drain. That slope is code-required under the Florida Building Code and prevents the pooling water that destroys grout joints over time. For walls, cement board covered with a liquid-applied waterproof membrane gives the most flexible finish for tile choices.

For showerheads and valves, Moen, Delta, and Kohler pressure-balance valves are the standard in South Florida's residential market. They prevent scalding when a toilet flushes — required in all new shower installs under Florida's plumbing code. Thermostatic valves with separate volume controls are available for a more custom, spa-like experience. Rain heads, body sprays, and handheld wands can all be roughed in during the same conversion if you tell us upfront.

Glass enclosures deserve special attention in coastal markets. Frames and hardware exposed to salt air corrode fast if you use standard aluminum. We specify brushed nickel or matte black finishes with marine-grade seals. Frameless 3/8-inch tempered glass is the most popular choice in places like Miami Beach tub-to-shower conversion projects, where high-rise condos demand a sleek, open look. In suburban homes across Kendall and Cutler Bay, semi-frameless swinging doors offer a balance of style and cost.

South Florida is not one market — it's a dozen micro-markets with different housing types, plumbing eras, and HOA rules. In the urban core, homeowners in Miami, Hialeah, and Doral often work in condos or townhomes where HOA approval and building management coordination are part of the job. Haven handles that paperwork. We schedule deliveries and dumpster placement around building rules and coordinate elevator access so your neighbors aren't impacted.

In historic and mature neighborhoods, tub to shower conversions require extra plumbing awareness. Homes in Coral Gables frequently have original cast-iron drains and galvanized supply lines. We pressure-test supply lines before closing walls and recommend PEX or CPVC re-pipes when the existing pipe shows corrosion. That proactive call saves homeowners from a water damage claim six months down the road. North Miami homeowners in areas like North Miami and Aventura face a similar profile — mid-century construction with plumbing that's long past its design life.

Suburban Miami-Dade — Miami Lakes, Cutler Bay, and Kendall — tends to feature 1980s and 1990s tract homes where the master bath has a garden tub that nobody uses. These are ideal tub to shower conversions: the footprint is generous, the plumbing is in good shape, and the project runs cleanly in three to four days. Down south in Homestead, newer construction from the post-Andrew rebuild era often has straightforward PVC plumbing that makes drain relocation fast and inexpensive.