Bathroom remodeling in Miami is a different project than bathroom remodeling anywhere else in the country. The slab is usually concrete — not wood-framed — and it may be on the 18th floor of a Brickell tower with an HOA that requires a four-week approval window before any tool touches a wall. The humidity runs 70–80% from June through October, which means waterproofing is not optional. The spec materials — Laminam slab walls, Neolith vanity surrounds, Schluter Kerdi membrane behind every wet area — arrive on lead times, not off-the-shelf. And the labor market in Miami-Dade prices quality work at a premium.

If you are planning a primary bath or guest bath remodel in Miami — in Brickell, Coral Gables, Key Biscayne, Miami Beach, or Pinecrest — this guide covers the actual budget bands by scope, the condo-specific overhead that most national guides omit, the real schedule from permit to sign-off, and the decisions that drive cost up or hold it flat.

What bathroom remodeling in Miami actually covers

Bathroom remodeling in Miami runs from a cosmetic refresh — new tile over an existing substrate, new fixtures, new vanity — to a full structural relocation that moves the toilet, adds a wet room, or reconfigures the plumbing rough-in against a Brickell tower’s riser stack. The scope defines the budget, the permit requirement, and the schedule.

Most residential bath remodels at the premium tier fall into four categories:

Cosmetic refresh. New finishes on an existing substrate. No plumbing move, no structural change. Replaces tile, fixtures, vanity, and mirror.
Full gut, same layout. Demo back to studs and sub-slab. New framing, waterproofing, substrate, slab or tile, plumbing trim, fixtures, glass. Same drain centerline, same wall positions.
Full gut, layout change. All of the above plus plumbing rough-in relocation. Drain moved. Sometimes a wall removed or added. Triggers a structural permit in Miami-Dade.
Wet-room or curbless conversion. Full gut with a recessed subfloor, single-slope build, linear drain, and a wet-area that extends beyond the shower threshold. The entire bathroom floor becomes the wet area.

The line between a gut and a layout change is the plumbing rough-in. Once the drain moves more than a few inches, or a new water supply line is run inside a condo’s unit envelope, a building permit is required under Florida Building Code §403. The five rough-in moves that quietly trigger a structural permit — and the NKBA fixture clearances Miami plan-checkers actually enforce — are covered in our master bathroom layout mistakes post.

What a Miami bathroom remodel actually costs

Real budget bands, tied to scope, for Miami-Dade work in 2026. These are all-in numbers — materials, labor, fixtures, glass, permits, and cleanup — but not condo-specific overhead, which is a separate line item covered below.

Scope	Bathroom size	Budget range	What drives the number
Cosmetic refresh	Guest bath (40–60 sq ft)	$12,000–$22,000	Tile selection, fixture tier, no substrate demo
Full gut, same layout	Guest bath (40–60 sq ft)	$25,000–$42,000	Waterproofing system, slab vs standard tile, glass enclosure
Full gut, same layout	Primary bath (80–130 sq ft)	$45,000–$85,000	Slab walls, dual vanity, radiant, custom shower
Full gut, layout change	Primary bath (80–130 sq ft)	$70,000–$120,000	Plumbing relocation, permit, extended schedule
Wet-room / curbless	Primary bath (80–130 sq ft)	$75,000–$130,000	Subfloor recess, linear drain, continuous slab floor

The spread within each band reflects material choices more than labor differences. A primary bath with Laminam 1620 × 3240 mm slab walls, a Neolith vanity surround, Schluter Ditra-Heat under a 12 mm porcelain floor, Guru USA Evolux 72-inch linear drain, and a custom Kohler or Graff plumbing package sits at the top of its band. The same scope with 24 × 48 standard porcelain and a builder-grade plumbing package sits at the bottom.

Large-format porcelain slab — Laminam, Neolith, Dekton — adds $15 to $35 per square foot of installed surface compared to standard tile, because it requires a flatter substrate, different handling equipment, and a more disciplined layout and cut sequence. On a typical Miami primary bath with 200 square feet of wall coverage, that delta runs $3,000 to $7,000. The premium covers a different kind of room. The grout joint is 1.5 mm. The wall reads as a single plane. That is what designers are specifying in Brickell and Coral Gables for a reason.

Always set aside 15% of the all-in budget as a contingency. On a Coral Gables house built in the 1950s, you will find something under the tile that wasn’t on the plans. On a Brickell tower, the existing waterproofing is often liquid-applied over an incompatible substrate, and it has to come out before anything new bonds.

The condo overhead nobody prices in — HOA, insurance, and approval timelines

This is the line item that separates a Miami condo bathroom remodel from everything else. If you own in a mid-rise or high-rise building in Brickell, Key Biscayne, Miami Beach, or the coastal corridor, budget for this before you budget for tile.

HOA approval package

Under Florida Statutes Chapter 718, a unit owner who wants to undertake reconstruction work must obtain prior written consent of the board of administration. In practice, that means submitting a construction package to the association — and waiting.

A complete HOA construction package for a Brickell or Miami Beach high-rise typically includes:

Scope of work drawings (architectural plans, not sketches)
Contractor license certificate (Florida CFC or CBC)
Certificate of insurance naming the association as additional insured
Contractor workers’ compensation policy
Material specs (especially waterproofing — boards want to know the membrane system)
Working hours confirmation (most buildings limit construction to Mon–Fri, 8 a–5 p)
Elevator reservation schedule
Floor-protection plan for common areas
Noise and dust management plan for common areas

Most Miami high-rise boards review packages in 2–4 weeks. Some Brickell buildings review at monthly board meetings, which means a submission in mid-February doesn’t move until mid-March. Start this process before you finalize your start date — not after. The full submission checklist with COI dollar floors and IIC-50 acoustic compliance detail lives in our condo bathroom renovation rules in Miami post; for Brickell-tower-specific elevator and freight constraints, see bathroom renovation in a Brickell condo. For Miami Beach baths — pre-war Art Deco substrates and Historic Preservation Board review on character-defining features — see our bath renovation in Miami Beach post. Designers spec’ing stone and porcelain in the same wall should read stone and porcelain bathroom design for the joint-and-edge transitions that hold.

Budget line: Prepare for $500–$1,500 in package-preparation costs if your architect or contractor is handling the submission from scratch. If your contractor has a pre-formatted package the building already accepts (as we maintain for the major Brickell and Sunny Isles buildings), the re-formatting cost drops to near zero.

Insurance rider requirements

Most Miami condo associations require the contractor to carry a minimum of $1,000,000 in general liability and name the association as an additional insured on the policy. Workers’ compensation is mandatory, not optional, regardless of crew size. Some buildings — particularly the newer Brickell towers and the Bal Harbour corridor — require $2,000,000 in combined single-limit liability.

Your contractor’s insurance certificate has to list the specific building address. A generic certificate won’t pass the association manager’s review.

Budget line: A licensed, insured Miami contractor already carries this coverage. The certificate is no extra cost to you. But if your contractor can’t produce the right certificate within 48 hours of a request, they may not be the right contractor for a condo job.

Elevator and common-area protection deposits

High-rise buildings typically require a refundable deposit to reserve the service elevator and to protect common-area corridors during material delivery and demo haul-out. Deposits range from $500 to $3,000 depending on the building. Add this to your pre-construction budget — it is recoverable, but you need the cash up front.

Timeline impact

In a condo, the HOA approval window is fixed overhead on every project regardless of scope. A 3-week guest bath gut that would take 5 weeks to execute (demo through punch list) in a single-family Pinecrest home can take 9–13 weeks total in a Brickell tower: 4 weeks for HOA approval, 2–3 weeks for permit issuance, 5 weeks on site. Plan from that number, not from the on-site duration alone. The full week-by-week schedule with the dependency chain — Kerdi flood-test cure, SLU 48-hour cure, Laminam 4-week lead time, custom glass 3-week fab — lives in our Miami bathroom remodel timeline and budget post.

How long a Miami bathroom remodel takes — the actual schedule

The on-site schedule for a primary bath remodel, from demo to final walk-off, runs 4–7 weeks depending on scope. The pre-site work is where the timeline lives.

Phase	Duration	Notes
Design and spec lock	2–4 weeks	Slab selection, fixture spec, layout drawing
Slab lead time	3–8 weeks	Laminam and Neolith ship from inventory or quarry in Modena; Dekton from Cosentino
Permit application	2–4 weeks	Miami-Dade Building Department; longer on structural permits
HOA approval (condos)	2–4 weeks	Can run parallel to permit; submit both simultaneously
Demo to sign-off (guest bath)	2–3 weeks	Same-layout only
Demo to sign-off (primary, same layout)	4–6 weeks	Includes waterproofing cure time and 24-hour flood test
Demo to sign-off (primary, layout change)	6–9 weeks	Add plumbing rough-in and rough-in inspection

Waterproofing cure time is a constraint that cannot be compressed. Schluter Kerdi bonding mortar requires 28 days of cure before the assembly reaches full bond strength, though the 24-hour flood test can run as early as 72 hours after installation. The flood test has to pass before any tile sets. That sequence is not negotiable.

The slab lead time is the most common schedule wrecker. A Laminam Calacatta in a specific format and thickness may not be in Guru USA’s Miami-area inventory. If it has to ship from Italy, allow 8–12 weeks from order to delivery. Spec and order the slab before you pull the permit, not after.

What drives cost up vs. what holds it flat

Three decisions drive bathroom remodeling cost in Miami more than any other:

1. Plumbing relocation. Moving a toilet on a concrete slab requires core drilling or trenching through the slab. On a condo floor, that work must be coordinated with the building’s engineering team and may require an MEP permit separate from the building permit. Budget $3,500–$8,000 for a toilet relocation, $5,000–$12,000 for a full drain reroute. Do it once and get it right — re-trenching costs the same as the first trench, plus the tile and waterproofing that has to come out to access it.

2. Waterproofing system. A bonded sheet-membrane system — Schluter Kerdi — applied to a properly prepared substrate, flood-tested for 24 hours, costs more than a liquid-applied coat-and-hope. It also has a manufacturer warranty and a 10-year track record on Miami condo slabs. The cost difference on a primary bath is roughly $800–$2,000 in materials and labor. A failed liquid-applied membrane in a Brickell high-rise costs the unit below you a full remediation and your HOA a lawsuit. The math on the upgrade is not complicated.

3. Material selection. Standard 24 × 48 porcelain, set on a prepared substrate, costs less per square foot than Laminam or Neolith slab. But standard tile also requires more grout joints, more layout decisions, more cuts, and more field improvisation at niches and drains. Large-format slab simplifies the layout and sharpens the room — and it prices accordingly. The right question is not “which is cheaper” but “which room am I trying to build.”

What holds cost flat: keeping the existing drain centerline, keeping the existing wall positions, specifying materials before demo begins, and having a single point of accountability for all three trades (tile, plumbing, electrical). A split contract where you hire the tile installer, plumber, and electrician separately adds coordination cost and typically adds 2–3 weeks to the schedule.

What triggers a permit in Miami-Dade

A building permit is required under the Florida Building Code when a bathroom remodel involves any of the following:

Plumbing work (new supply lines, drain relocation, new fixture rough-ins)
Electrical work (new circuits, recessed lighting, radiant heat controls)
Structural work (wall removal, beam modification, subfloor framing)
Opening or relocating windows or exterior doors
Any work that alters the building envelope of a condo unit

A cosmetic refresh — new tile over an existing substrate with no plumbing, electrical, or structural change — does not require a permit under Florida Building Code §403. However, the definition of “structural” is broader than most homeowners expect. Adding a niche that cuts a stud, or reframing a curbless threshold, may require a permit. When in doubt, call the Miami-Dade Building Department or ask your contractor to confirm before demo begins.

The permit is not the obstacle. The unpermitted work is. On a condo sale, an unpermitted bath remodel that moved a drain is a cloud on title. The buyer’s attorney will find it. The cost to remediate — rip out the finished tile, get the permit retroactively, reinspect — exceeds the original permit cost by a factor of 10.

We pull the permit on every project that requires one. The permit fee is a line item in our estimate, the inspection windows are coordinated by our office, and the as-built record goes to the homeowner at sign-off.

What the installation sequence actually looks like

A full-gut primary bath at The Miami Floors runs in five sequential phases, each with a signed milestone before the next begins:

Demo and protection. Adjacent rooms papered and Ram Boarded. Door openings sealed with zip-wall plastic and HEPA-filtered air scrubbers running for the duration. Existing tile, drywall, plumbing fixtures, and substrate removed back to studs and sub-slab. Ivan walks the demo-close before framing starts.

Framing, plumbing rough-in, electrical. Wall and floor framing brought to plumb and square. On a 1950s Coral Gables bath, that can mean sistering studs or adding a header that wasn’t in the original build. Plumbing rough-in coordinated so drain centerlines match the engineered shower pitch. Electrical — radiant heated floors, vanity sconces, exhaust — pulled before substrate.

Substrate and waterproofing. Schluter Kerdi-Board on shower walls. Cement board on dry walls. Subfloor leveled or recessed — floor leveling to ± 1.5 mm over a 3 m straightedge is required before any large-format porcelain lands. Full Schluter Kerdi membrane on every wet area, every seam banded with Kerdi-Band, every drain bonded with an integrated flanged drain. 24-hour flood test before tile. Ivan walks the waterproofing. The flood test report is documented before the next phase.

Tile, slab, stone. Layout approved on paper before the first cut. Large-format slab walls — Laminam, Neolith, Dekton — handled on a Raimondi vacuum frame, set at 1.5 mm dry joint. Cuts made in the staging area on a Raimondi wet rail, not improvised at the wall. LATICRETE 254 Platinum back-buttered on the slab, LHT mortar bed combed at ¾-inch notch on the substrate, RAIMONDI RLS leveling clips at every 18 inches of perimeter. Grout is SpectraLOCK Pro Premium epoxy on all joints. Ivan walks the slab set before finish trades move in.

Finish, fixtures, sign-off. Vanity, mirrors, sconces, plumbing trim, glass enclosure all field-measured and installed in sequence. Ivan walks the finished room with the homeowner — fixture by fixture, joint by joint — before sign-off. The punch list closes in the same week.

See custom shower systems for the wet-area assembly detail and Schluter waterproofing for the membrane specification.

Common planning mistakes that blow the schedule and budget

Most bathroom remodeling projects in Miami run long or over-budget for one of five reasons:

Ordering slab after demo. The slab should be spec’d and ordered before the permit is pulled, not after demo opens the wall. An 8-week Laminam lead time on top of a 4-week permit window pushes a 6-week on-site project into a 4-month total. The house cannot live without a primary bath for 4 months.

Splitting the contract. Homeowners who hire the tile installer, plumber, and electrician separately are the project manager for three independent trades. Coordination gaps between trades add time and create disputes over whose scope covers the seam between two systems.

Choosing tile before fixing layout. A tile selected at the showroom looks different at scale in the room. A 12 × 24 tile selected because it photographs well may force a 3-inch cut at the entry that reads as an afterthought. Layout and tile selection should happen together, with the room dimensions on a drawing.

Not budgeting for the substrate. The substrate is never pretty when the old tile comes off. Hidden moisture damage, cracked mortar bed, soft spots in the subfloor — these are conditions that appear at demo close and have to be addressed before waterproofing bonds. Budget a 15% contingency. Use it for substrate remediation before you use it for an upgrade.

Underestimating the condo approval window. A homeowner who plans to start demo on the day the HOA says yes will wait a month for the permit. Start both processes simultaneously. We submit the HOA package and the permit application in the same week.

The NKBA bathroom planning guidelines are the industry standard for layout dimensions and clearance requirements — a useful reference before your designer finalizes the plan.

When The Miami Floors is the right fit

We take one bathroom at a time. Not one at a time across the city — one at a time, full crew, same room, every day until sign-off. That is not a marketing position; it is a schedule discipline. The demo crew and the slab crew are not the same people, but they are on the same project and they answer to the same point of contact.

We carry bathroom remodeling end to end: demo, framing, plumbing rough-in, waterproofing, slab, stone, fixtures, glass. Schluter Kerdi waterproofing on every wet area. Guru USA Evolux linear drains on curbless builds. Laminam, Neolith, and Dekton when the design calls for it. LATICRETE 254 Platinum and SpectraLOCK Pro Premium epoxy on every setting bed and joint. The HOA package is pre-formatted for the major Brickell, Sunny Isles, and Key Biscayne buildings; we submit it before contract, not after.

We work in Miami-Dade and Broward: Brickell, Coral Gables, Key Biscayne, Miami Beach, Pinecrest. For multi-unit buildings in the coastal corridor, ask about our condo construction package — the drawings, the insurance certificate, the elevator and floor-protection plan — it is built and ready to submit.

The firm is led by Ivan Herrera. Schluter certified. BuildZoom 100. 4.9 stars across 85+ Google reviews. More than 20 years of residential bath, slab, tile, and stone work in Miami-Dade and Broward. If you want to understand the waterproofing system behind the tile before committing to a scope, that conversation is the right place to start. If you are comparing contractors, start with the substrate and the flood test — the tile can be anything, but the assembly underneath it has to be right.

For the vetting checklist on bathroom tile installers specifically — the five questions to ask before signing — see bathroom tile installer in Miami: what to verify first. For the full vetting guide across tile, slab, shower, and exterior work, see tile installers in Miami: how to vet the crew.

Reviewed by Ivan Herrera, April 2026.

Bathroom Remodeling in Miami: Budget, Scope, and Condo Reality