Tub-to-Shower Conversion in Flagami, FL: What It Costs and How Long It Takes
A tub-to-shower conversion in Flagami typically runs $3,500-$10,000 and takes 5 to 10 working days from permit approval to final inspection. Most Flagami homeowners we work with are replacing an aging alcove tub in a 1950s-1970s CBS ranch with a walk-in shower that opens up the bathroom and eliminates a step-over barrier. Call (844) 665-0162 and we’ll walk through your exact layout, check whether your existing plumbing can stay put, and give you a written estimate with no pressure to decide on the spot.
How We Handle a Tub-to-Shower Conversion from Start to Finish
We’ve done enough of these in Flagami’s older CBS ranches to know where the surprises hide. Here’s how we sequence the work so you’re not living in construction dust longer than necessary.
Stage 1: Existing condition survey and decision lock (Day 1)
We start by pulling everything out of the bathroom and inspecting what’s actually behind the walls. In Flagami’s 33144 ZIP, that often means discovering unpermitted plumbing modifications from a 1980s or 1990s renovation, or galvanized supply lines that look fine from the outside but are choked with corrosion. We photograph everything, test water pressure at the stub-outs, and check whether your drain line sits at 2-inch diameter (modern code) or the original 1½-inch (common in pre-1975 builds). You’ll decide here whether to keep the plumbing in its existing location or relocate it, which is the single biggest cost and timeline driver on this job.
Stage 2: Demolition and substrate repair (Days 2-3)
The tub, surround, and any damaged drywall or cement board come out. We inspect the subfloor for moisture damage, which we find more often than you’d expect in Flagami homes where decades of shower curtain leaks have seeped into the slab edge. If your home sits on the Miami limestone shelf with that 3-4 foot water table, we also check for capillary moisture wicking up through the slab. Minor subfloor repair adds a day; significant concrete spalling or mold remediation can add two to three. We don’t tile over damage. You’ll approve any substrate repairs before we continue.
Stage 3: Rough plumbing, electrical, and blocking (Days 3-5)
If we’re keeping plumbing in place, this stage moves fast. If we’re relocating the drain, converting to a linear drain, or adding a second showerhead and body sprays, this is when the new lines go in. We also run dedicated 20-amp GFCI circuits for any heated floors, towel warmers, or digital shower valves you’ve selected. For grab bars, we install solid wood blocking between studs now, before the walls close up. You’ll have already chosen your shower valve rough-in model by this point, different brands have different depth requirements.
Stage 4: Waterproofing, tile or wall panel installation, and fixture set (Days 5-8)
We apply liquid-applied or sheet membrane waterproofing to ANSI A118.10 standards, flood-test the pan for 24 hours if it’s a traditional mortar bed, then install your wall finish. Large-format porcelain or ceramic is what most Flagami homeowners choose for humidity resistance, though solid surface wall panels are gaining ground for faster install and no grout maintenance. Tile work takes longer but gives you more design flexibility. Your glass enclosure gets field-measured after tile is complete so the fit is exact.
Stage 5: Final inspection, cleanup, and walkthrough (Day 9-10)
Miami-Dade Building Department requires a plumbing rough inspection and a final inspection for tub-to-shower conversions that involve drain relocation or electrical work. We schedule these, meet the inspector on-site, and don’t close out the permit until it’s clean. You get a final walkthrough where we demonstrate the valve operation, explain the grout sealer schedule, and hand over manufacturer warranty cards for your fixtures.
The Material and Configuration Choices You’ll Actually Decide On
Every tub-to-shower conversion involves a handful of real choices that affect price, maintenance, and how the space feels. Here’s what we walk Flagami homeowners through:
- Shower base type: A prefabricated acrylic or fiberglass pan ($) installs in hours and carries a 10-30 year warranty, but the dimensions are fixed and the look is utilitarian. A custom mortar-bed pan with tile finish ($$) lets you size the shower exactly to your space and choose any drain location, though it requires skilled installation and annual grout sealer maintenance. Solid surface bases ($$-$$$), like those from Swanstone or Corian lines, split the difference: custom sizes, no grout, higher material cost.
- Wall finish: Ceramic or porcelain tile ($-$$) dominates in South Florida for good reason: it handles humidity, comes in every style, and replaces easily if a section cracks. Large-format tiles (24″x48″ or larger) minimize grout lines but require perfectly flat walls, which can mean more prep in older Flagami homes with settled framing. Solid surface panels ($$) eliminate grout entirely and install faster, though color and texture options are narrower. Natural stone ($$$) is available but we rarely recommend it in this climate, the porosity and calcium content in Flagami’s water leads to etching and staining within a few years.
- Glass enclosure: A framed sliding door ($) is functional and budget-friendly but the metal channels collect soap scum. Semi-frameless ($$) or frameless ($$$) hinged doors with 3/8″ tempered glass open the visual space and are easier to clean, though they require precise wall plumbness that can mean extra blocking or shimming in older homes. A simple curtain rod ($) remains valid for tight budgets or accessibility-focused designs where a door swing is problematic.
- Plumbing fixtures: A basic pressure-balanced valve with a single handle ($150-$300) controls temperature and volume together. A thermostatic valve ($400-$800+) holds exact temperature regardless of pressure fluctuations elsewhere in the house, worth considering in Flagami’s older homes where galvanized mains and inconsistent pressure are common. For finishes, brushed nickel and matte black hide water spots better than polished chrome in our hard water.
- Accessibility features: A curbless entry adds $800-$2,000 depending on slab work but eliminates the trip hazard and works with wheelchairs or walkers. Grab bars ($50-$200 each) should be planned at rough-in, not surface-mounted later into hollow drywall. A built-in bench ($300-$800) folds flat or is tiled in place depending on your preference.
What Tub-to-Shower Conversion Costs in Flagami, FL
For a tub-to-shower conversion in Flagami, expect to invest between $3,500 and $10,000. Most projects we quote in the 33144 area land in the $5,500-$7,500 range for a straightforward replacement keeping existing plumbing, mid-grade tile, and a frameless glass door.
| Cost Variable | Low-End Impact | High-End Impact |
|---|---|---|
| Plumbing location | Keep drain and supply in place | Relocate drain, add body sprays, or convert to linear drain |
| Subfloor condition | Clean concrete slab, no repairs | Concrete spalling repair, moisture barrier, or mold remediation |
| Wall finish material | Acrylic surround or basic ceramic tile | Large-format porcelain, natural stone, or solid surface panels |
| Glass enclosure | Framed sliding door or curtain | Frameless 3/8″ tempered with custom hardware |
| Permit complexity | Simple replacement, no structural changes | Discovery of unpermitted prior work requiring legalization |
What our written estimate includes: demolition and haul-away, all rough and finish plumbing, waterproofing to code, wall and floor finishes, fixture installation, glass enclosure, permit fees, and final cleanup. What typically isn’t included: mold or asbestos remediation if discovered, repair of concealed water damage beyond the immediate shower area, relocating windows or walls, or vanity replacement. We flag these possibilities during the initial survey so you’re not surprised.
Homeowners often ask whether this job makes sense as part of a full Bathroom Remodeling in Flagami project. If your vanity, toilet, and flooring are also dated, bundling everything under one permit and one Bathroom Remodeling crew typically saves 10-15% on labor and avoids repeated demolition mess.
What Flagami Homes Specifically Do to This Job
Flagami’s housing stock shapes every tub-to-shower conversion we bid here. The neighborhood’s single-story CBS ranch homes, built mostly between 1948 and 1975, carry original bathrooms that are compact by modern standards, often 5 feet by 8 feet with the tub spanning the full 60-inch width. That tight footprint means every inch matters. We’ve learned to measure twice for shower bases because an extra half-inch of tile buildup can make a 32-inch pan feel claustrophobic in a room that already has limited circulation space.
The bigger issue is what we find when we open the walls. Flagami’s dense history of unpermitted additions, enclosed carports, and garage conversions means building records often don’t match reality. A bathroom that looks original may have been relocated in the 1980s by a previous owner who never pulled a permit. When we apply for a new Miami-Dade permit for your tub-to-shower conversion, the Building Department cross-checks against their records. If they flag discrepancies, we have to legalize or remove the unpermitted work before your new permit issues. This isn’t rare in 33144, it’s routine. We build time into our schedule for this possibility and handle the navigation so you don’t have to chase paperwork between departments.
Climate factors matter too. That 60+ inches of annual rainfall and extreme humidity mean we specify mold-resistant cement board, not standard drywall, behind every shower surround we install in Flagami. We also see more calcium and mineral buildup on fixtures here than in Broward County, so we steer homeowners toward finishes and valve cartridges that tolerate hard water without constant maintenance.
Some clients tackling a full exterior update alongside their bathroom ask about our roofing work. If you’re considering a full envelope upgrade, Metal Roofing in Flagami or Tile Roofing in Flagami can be coordinated through the same project management team, though we keep the trades separate to maintain focus and accountability on each scope.
Serving Flagami, FL - Our Local Coverage Area
We’re based in the Flagami area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked - Tub-to-Shower Conversion in Flagami
Most conversions take 5 to 10 working days after permit approval, with straightforward projects finishing closer to 5 and complex relocations or subfloor repairs stretching toward 10. Add 2 to 4 weeks upfront for permit submission and Miami-Dade Building Department review, longer if unpermitted prior work surfaces and needs legalization. Call (844) 665-0162 and we’ll check your property records for red flags during the estimate.
Yes, if you’re changing the drain location, modifying supply lines, or doing any electrical work. Miami-Dade requires plumbing and electrical permits for this scope, plus a final inspection. We handle the application, drawings, and inspector meetings as part of our standard process. The permit fee is included in our estimate.
Often yes, if your existing tub drain is centered or close to centered in the alcove and your supply valves are in reasonable position for a shower valve. Keeping everything in place typically saves $1,500-$3,000 and 2-3 days. We determine this during the initial survey by inspecting the drain line size, supply pressure, and wall cavity access.
Three factors: older homes with galvanized plumbing that needs replacement, higher likelihood of unpermitted prior work requiring legalization before new permits issue, and Miami-Dade’s strict HVHZ requirements that affect any exterior-facing bathroom windows or venting. These aren’t upsells, they’re realities of working in 33144 that we account for in our estimates.
Our workmanship warranty covers installation quality for one year, and we pass through full manufacturer warranties on your fixtures, shower base, and glass enclosure, which typically run 10 years to lifetime depending on the brand. We register these warranties in your name so you’re covered even if you sell the home. For warranty details on your specific material choices, call (844) 665-0162 during your estimate.
Ready to Replace Your Tub with a Walk-In Shower?
We’ll come to your Flagami home, measure your space, check what’s behind the walls, and give you a written estimate for your tub-to-shower conversion with no obligation. Raymond Estevez and our team handle the permits, the inspections, and the material coordination so you’re not managing three different subcontractors. Call (844) 665-0162 or fill out our contact form to schedule your free on-site estimate.
Written by Raymond Estevez, Owner at Groundwork Construction Co., serving Flagami and South Florida homeowners since our founding.