Tub-to-Shower Conversion in Coral Gables: Scope, Timeline, and What You’ll Pay
A tub-to-shower conversion replaces your existing bathtub with a dedicated shower enclosure, typically keeping the drain location but opening up floor space and modernizing the wet area. In Coral Gables, most conversions we handle run $3,500-$10,000 and take 5 to 10 working days from demolition to final inspection, depending on whether we’re working within the existing footprint or reconfiguring plumbing. Call (844) 665-0162 and we’ll walk through your layout, show you material samples from our 50+ brand partnerships, and put together a written estimate with no obligation.
How We Handle a Tub-to-Shower Conversion From Start to Finish
We’ve refined this process across hundreds of bathroom projects in Coral Gables and surrounding neighborhoods. Here’s what actually happens, and when you’ll need to make decisions.
Stage 1: Site assessment and layout lock (Day 1)
We arrive, photograph and measure everything, and verify your existing drain location, wall framing, and vent stack access. You’ll decide right then: keep the drain where it is (faster, cheaper) or relocate it for a larger shower footprint or bench seating. We also confirm whether your walls are standard stud framing or the coral rock masonry common in 1920s-1960s Coral Gables homes near Granada Boulevard or Alhambra Circle. Masonry wet walls demand diamond-blade wet cutting and specialized anchors, adding a day or two. We leave with signed specs and your material selections noted.
Stage 2: Demolition and rough-prep (Days 2-3)
The tub, surround, and valve come out. We expose the subfloor around the drain, inspect for rot or prior leaks, and check whether the floor structure needs reinforcement for a heavier tile base or poured pan. In older Coral Gables homes, we often find original clay-tile sewer laterals that have been compromised by banyan root intrusion - something our crew flags immediately rather than discovering it mid-project. If your home falls under a Coral Gables HOA with interior renovation notification rules, we handle that paperwork before demolition starts.
Stage 3: Plumbing and blocking (Days 3-4)
If you chose to relocate the drain or upgrade to a thermostatic valve, this is when licensed plumbers rough in new supply and waste lines. We also install horizontal blocking for grab bars, shower doors, or a floating bench if that’s in your spec. You’ll need to have chosen your fixture finish by now - brushed nickel, matte black, polished chrome - since valve trim must match the rough-in body we order. Our plumbing is done to Miami-Dade HVHZ-adjacent standards even on interior wet-area work; we don’t cut corners just because it’s behind tile.
Stage 4: Waterproofing and finish installation (Days 5-8)
The pan gets poured or the prefab base set, walls get cement board or foam shower system backing, and we apply liquid or sheet membrane waterproofing per manufacturer spec. Then tile, solid surface panels, or a composite surround goes up. This is where material choice drives timeline: a full custom tile shower with niche detailing and a mud-bed floor takes 3-4 days; a solid-surface wall panel system with a prefab acrylic base can be finished in 1-2. We photograph the waterproofing layer for your records before covering it.
Stage 5: Fixture set, glass, and final inspection (Days 9-10)
Valve trim, showerhead, door hardware, and any glass enclosure get installed. We pressure-test everything, seal joints with mold-resistant silicone, and clean out. If your conversion triggered a permit - which it will if plumbing was relocated or electrical added for lighting - we schedule the Coral Gables building inspector. Most pass on first visit; if there’s a correction, we handle it same-day. You do a walkthrough with our lead carpenter, we hand over care instructions and warranty docs, and the job’s closed.
The Material and Configuration Choices You’ll Face
Every tub-to-shower conversion forces real trade-offs. We don’t push one path; we show you the options and let your priorities - budget, maintenance tolerance, resale value - guide the decision.
- Shower base: poured mud-bed with tile vs. prefab acrylic or composite. Mud-bed with porcelain or ceramic tile looks custom and holds value in Coral Gables’ older-home market, but it costs more upfront and needs re-grouting every few years. Prefab bases from Kohler or Swanstone install faster, cost less, and eliminate grout maintenance, though they read more “practical” than “luxury” to discerning buyers.
- Wall surround: full tile, large-format porcelain, or solid surface panels. Full tile gives unlimited design range but demands skilled installation and regular grout sealing. Large-format porcelain (24″x48″ or bigger) minimizes grout lines and reads modern. Solid surface - Corian, Swanstone, or similar - is seamless, repairable, and nearly maintenance-free, but color palettes are narrower.
- Glass enclosure: framed sliding, semi-frameless, or frameless. Framed sliders are economical and watertight but visually heavy. Frameless with 3/8″ tempered glass opens the room and shows off your tile investment; it’s what we recommend for Coral Gables homes where natural light is at a premium. Semi-frameless splits the difference on cost.
- Plumbing fixtures: standard pressure-balance valve or thermostatic mixing. Pressure-balance protects against scalding when someone flushes a toilet; thermostatic holds exact temperature and supports multiple shower functions (rain head, hand shower, body sprays). Thermostatic adds $400-$800 in hardware but eliminates the temperature hunt every morning.
- Drain position: keep existing or relocate to center for a larger footprint. Keeping the drain saves $800-$1,500 in plumbing labor. Relocating lets you push the shower wall outward, add a bench, or align with a new door swing - often worth it in smaller Coral Gables bathrooms where every inch matters.
What Tub-to-Shower Conversion Costs in Coral Gables, FL
Most tub-to-shower conversions we quote in Coral Gables fall between $3,500 and $10,000. Here’s what pushes a job toward the low or high end of that range.
| Cost Driver | Low-End Scenario | High-End Scenario |
|---|---|---|
| Shower size and layout | Standard 60″ x 30″ tub footprint, drain stays put | Expanded to 60″ x 36″ or larger, drain relocated, bench added |
| Wall and floor finishes | Acrylic surround and prefab base | Full porcelain tile, mud-bed floor, glass mosaic accents |
| Plumbing complexity | Existing valve location reused | New thermostatic valve, relocated drain, additional body sprays |
| Structural conditions | Standard stud framing, clean subfloor | Coral rock masonry walls needing wet-cutting, floor reinforcement, rot repair |
| Glass and hardware | Framed sliding door, standard chrome | Frameless 3/8″ glass, premium finish, custom sizing |
A written estimate from Groundwork Construction Co. includes demolition, disposal, all rough and finish plumbing, waterproofing, your chosen wall and floor finishes, the shower door, fixture installation, and permit fees if required. It does not include bathroom flooring replacement outside the wet area, vanity or toilet relocation, or electrical work beyond a simple exhaust fan swap. If your project is part of a full Bathroom Remodeling in Coral Gables, we bundle pricing across all trades and schedule sequentially to minimize downtime.
What Coral Gables Homes Specifically Add to This Job
Coral Gables isn’t like the rest of Miami-Dade, and any contractor who treats it that way learns fast. The city maintains its own Board of Architects - separate from county permitting - which reviews virtually all exterior work and many interior renovations for compliance with the 1920s Mediterranean Revival design code: barrel-tile roofs, stucco exteriors, arched openings, specific color palettes. While a straightforward tub-to-shower conversion inside an existing bathroom rarely triggers full Board review, any project that touches exterior windows, adds square footage, or alters a historically designated property can get pulled into that dual-approval layer. We’ve seen timelines stretch by three to four weeks when contractors unfamiliar with Coral Gables submit to Miami-Dade first and only then discover the city requirement.
The housing stock itself shapes our approach. Homes north of Coral Way or along Country Club Prado often sit on oolite limestone foundations with coral rock bearing walls. Standard concrete anchors and fastening methods don’t hold; we use hydraulic lime mortars and expansion anchors rated for porous stone. The city’s heritage-tree ordinance means massive banyan roots have cracked original sewer laterals in ways you won’t find in Glenvar Heights or South Miami - our plumbers camera every line before breaking concrete, because discovering a root-blocked clay pipe mid-project turns a 5-day job into a 12-day job with arborist coordination.
And every permitted construction project in Coral Gables, even interior bathroom work that triggers plumbing or electrical permits, operates under the shadow of Miami-Dade’s High-Velocity Hurricane Zone. While a shower enclosure itself isn’t wind-rated, the window replacement that often accompanies a bathroom refresh must be impact-rated, and our Coral Gables crews are HVHZ-certified for that exact reason. Homeowners often pair wet-area updates with exterior envelope work; we’ve completed Metal Roofing in Coral Gables and Tile Roofing in Coral Gables for the same clients handling interior renovations, keeping one contractor accountable from driveway to roofline.
Serving Coral Gables, FL - Our Local Coverage Area
We’re based in the Coral Gables 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 Coral Gables
Most conversions take 5 to 10 working days. Jobs stay on the shorter end when we keep the existing drain location and use a prefab base and wall panels; they stretch toward 10 days or more when we’re cutting coral rock walls, relocating plumbing, or navigating Coral Gables permit inspections. Call (844) 665-0162 with your address and we’ll give you a realistic timeline based on your home’s specifics.
Yes, if plumbing lines are relocated or electrical work is added. A simple swap using the existing drain and valve location sometimes avoids permitting, but we recommend pulling a permit regardless - it protects your resale value and ensures work meets Miami-Dade HVHZ-adjacent standards. Our Bathroom Remodeling crew handles all submittals and inspections.
Often, yes. If your existing tub drain is centered or close to centered in the new shower footprint, we can install a shower base designed for that location and keep supply lines where they are. This saves $800-$1,500 and shortens the timeline by 1-2 days. The limitation is shower size and layout; a centered drain in a 60″ tub bay won’t accommodate a deep bench or an off-center door swing.
The most economical path is a prefab acrylic or composite shower base and surround, keeping the drain and valve in place, with a framed sliding door and standard chrome fixtures. In Coral Gables, that combination typically lands near $3,500-$4,500. It won’t have the custom feel of tile, but it’s watertight, functional, and done in under a week. For an exact quote on your bathroom, call (844) 665-0162 - estimates are free.
We warranty our installation workmanship, and every product we install carries its own manufacturer warranty - typically 10 years to lifetime on shower bases, 5 years on valves, and lifetime on frameless glass hardware. We register warranties in your name and keep copies on file. Because we work with 50+ recognized brands rather than proprietary products, you’re not locked into a single vendor if a claim ever arises.
Get Your Coral Gables Tub-to-Shower Conversion Estimate
We’ll come to your home in Coral Gables, measure your existing tub bay, show you material samples from our curated brand roster, and deliver a written estimate with line-item pricing. No pressure, no deposit required to get the number. Call (844) 665-0162 or reach out through our site to schedule your free on-site consultation.
Written by Raymond Estevez, Owner at Groundwork Construction Co., serving Coral Gables and South Florida homeowners since our founding.