What should I ask before hiring a bath remodeler?
Two questions filter most bath remodel problems before they start: Will you inspect the substrate — studs and subfloor — before finalizing the quote? and Is a permit required for this work, and will you pull it? Rotted studs behind wet tile are the #1 source of cost overruns in bath remodeling. A company that quotes without opening a wall to inspect substrate in an older bathroom is quoting a best-case number that won't hold.
For national one-day acrylic conversion brands (Bath Fitter, Re-Bath, etc.): the 1–3 day install is real, but the pricing is typically 30–60% above what local tile or acrylic contractors charge for equivalent scope. The marketing is excellent; get a local quote before you sign.
The questions that separate pros from problems
Will you inspect the substrate before finalizing your price?
Substrate repair at demo: $500–$3,000 depending on extentGood answer sounds likeRotted studs and subfloor from years of water intrusion are the most common hidden cost in bath remodeling. A quote written without inspecting the substrate is a minimum-case estimate that will grow at demo.
Walk away if…Ask: 'How do you assess substrate condition before quoting, and how do you price discovered rot?' The honest answer includes either a contingency range upfront or an inspection phase before the full quote is finalized.
Is a permit required for this project, and who pulls it?
Plumbing permit: $150–$600Good answer sounds likeAny plumbing moves (drain relocation, valve repositioning) or structural changes require permits. 'Same-day install' without permits on a project that requires them is an immediate disqualifier — it's the bath remodel equivalent of the roofer who skips permits.
Walk away if…Ask which permits apply to your specific project. If the drain is staying in place and only the tub/surround is changing, a permit may not be required. If plumbing is moving, a permit is required and the contractor should pull it.
Is this price from a national brand, and have you gotten a local contractor comparison?
Acrylic conversion: $3,500–$9,000 (local); $7,000–$14,000 (national)Good answer sounds likeNational bath remodel brands spend heavily on marketing and in-home sales, and price accordingly — typically 30–60% above local contractors for equivalent acrylic or tile work. The product and warranty can be good; the markup can be significant.
Walk away if…Get at least one quote from a local tile contractor or bathroom remodeler for the same scope before signing with a national brand. The difference on a $9,000 quote is often $2,500–$4,000.
What waterproofing system do you use behind the tile or panels?
Proper waterproofing: $200–$600 more; failure remediation: $3,000–$8,000+Good answer sounds likeTile installed over cement board that isn't fully waterproofed at seams and corners will eventually fail — moisture gets behind the tile, saturates the substrate, and causes mold and tile pop-off. This is the #1 failure mode for tile shower installations.
Walk away if…Ask the contractor what their waterproofing system is: Schluter-Kerdi, RedGard membrane, Wedi board, or equivalent. 'We use cement board' alone is not a waterproofing system — it's a substrate that still requires a membrane.
What are the payment milestones, and what percentage is due before work starts?
Reasonable deposit: 25–33% upfrontGood answer sounds likeBath remodels are multi-day projects with material costs. A deposit of 25–33% upfront is standard for material procurement. Deposits above 50% before a tile or full custom shower is laid are aggressive and leave you with little leverage if issues arise.
Walk away if…Ask for a payment schedule tied to project milestones: deposit at signing, payment at rough-in or substrate completion, final payment at project completion and walkthrough.
What is the ventilation plan for this bathroom, and does it meet code?
Fan upgrade: $150–$400 — prevents future moldGood answer sounds likeUndersized bathroom fans (below 50 CFM for most bathrooms) cause the mold and grout blackening that drives remodel requests in the first place. A remodeler who doesn't assess and recommend proper ventilation is not solving the root cause.
Walk away if…Ask whether the existing fan will be upgraded as part of the project. Minimum 50 CFM for a standard bath, 80–110 CFM for a shower enclosure or larger space. Many remodelers omit this unless asked.
Before you even call
- Press on the tiled walls around the tub or shower with your palm — soft or hollow-sounding areas indicate failed waterproofing and substrate damage. This gives you an early read on scope before any contractor arrives.
- Check the bathroom exhaust fan: turn it on and hold a piece of tissue to the grate. If it doesn't pull the tissue against the grate, the fan is undersized or the duct is clogged — this is likely a contributing cause to any mold or grout degradation you're seeing.
- Photograph the current space from multiple angles before any contractor visit: overall layout, tile condition, grout/caulk condition, the shower valve, the drain location, and any visible damage. These photos document the starting point for scope and prevent disputes.
- If the project involves any mobility access needs (low threshold, grab bars, fold-down bench), confirm the contractor has experience with ADA-compliant installation — grab bar blocking must be in the wall substrate, not just surface-mounted.
Unlock the hiring checklist
Use this before you call a bath remodel, so you know what to ask and what to avoid.
Red flags that end the conversation
- Any company offering 'same-day install' that doesn't include a permit for a project requiring plumbing work — speed that skips permits creates problems at resale and voids homeowner's insurance coverage for the remodel.
- The quote was written without the contractor physically inspecting the substrate condition, especially in a bathroom with existing tile over 10 years old.
- They can't describe a specific waterproofing system used behind the tile or panels — 'standard installation' without naming a membrane product is not an acceptable answer for a wet-area shower.
- The payment schedule requires more than 50% before any work begins or before materials are on-site.
About pricing
Bath remodel quotes should itemize: demo and disposal, substrate inspection and repair allowance, waterproofing system, tile or panel material and labor, plumbing rough-in if applicable, fixtures, shower door or curtain rod, ventilation upgrade, and final trim/caulk. Projects with plumbing moves should include the permit fee as a line item, not buried in 'miscellaneous.' Ask what the contingency process is — how you'll be notified, how decisions are made, and how cost changes are documented if substrate rot is discovered after demo.
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Related questions
Do bath remodelers need to be licensed?
For projects involving plumbing changes (moving a drain, repositioning a valve), a licensed plumber must do that specific work in most states — even if a general contractor manages the overall remodel. For tile-only conversions with no plumbing moves, licensing requirements vary by state and project value threshold. Always confirm your contractor carries general liability insurance and workers' compensation.
How much of a deposit should a bath remodeler require?
For a project with custom tile or custom panels, 25–33% upfront for materials is reasonable. For acrylic conversion systems (prefab panels), some companies require full payment at order since the panels are custom-manufactured. In either case, hold back at least 15–25% for final payment after you've inspected the completed work and confirmed everything is sealed, square, and functional.
Is a one-day acrylic conversion worth it over custom tile?
Acrylic conversions (Bath Fitter style) are faster (1–3 days vs. 1–2 weeks for tile), completely waterproof when properly installed, and lower maintenance — no grout to seal. Custom tile is more durable long-term, more customizable aesthetically, and typically better for resale value on higher-end homes. The right choice depends on your budget, timeline, and how long you plan to stay in the home.
Does a tub-to-shower conversion require a permit?
If the drain location changes or the plumbing valve is repositioned, a permit is required in most jurisdictions. If the drain stays in the same location and only the surround, fixtures, and aesthetics change, a permit may not be required. Your contractor should know your local jurisdiction's requirements — if they're unsure, call your local building department directly before work starts.