Key Takeaway
A bathroom tub remodel covers four distinct approaches: refinishing the existing surface, installing a liner over the old tub, fully replacing the tub and surround, or converting the space to a walk-in shower. Refinishing suits cosmetic wear, while replacement is necessary when the tub flexes, cracks, or shows signs of hidden water damage. Costs vary widely based on scope, materials, plumbing changes, and any damage found behind the surround.
A bathroom tub remodel can mean four different things: refinishing the existing surface, fitting a liner over the old bathtub, replacing the tub and surround entirely, or converting the space into a walk-in shower. Which one is right depends on the bathtub’s condition, whether there’s hidden moisture or plumbing trouble behind it, and who actually uses the bathroom every day.
If you’re standing in front of a stained, chipped, hard-to-step-into tub and hoping you don’t have to gut the whole room, you’re asking the right question. The tub is the biggest decision in a bathroom remodel, and everything else follows it. Let’s walk through the process together.
What Does a Bathroom Tub Remodel Actually Change?
Here’s the distinction that shapes every other decision: some options only change what you can see, while others open the assembly so the plumbing, framing, and subfloor can be inspected. Refinishing and liners leave the bathtub’s shape, step-over height, and plumbing layout exactly as they are. Replacement and conversion don’t, and that changes what the remodel is capable of fixing.
So start with condition, not style. Design comes next, and it comes easier once you know how much of the wall is coming apart. Most homeowners come to us wanting to get rid of one or more of these:
- Dated color or finish that no longer matches the bathroom
- Stains, chips, or dull spots that won’t scrub out
- Leaks, musty smells, or discoloration along the shower wall
- Grout and surround materials that are exhausting to keep clean
- A step-over height that has become difficult or unsafe
- Not enough depth in the bathtub for a real soak
Four Ways to Remodel a Bathtub: Refinish, Line, Replace, or Convert
These aren’t four quality tiers of the same product. They’re four solutions to four different problems, and each is a legitimate remodel in the right house. Material matters too. Porcelain enamel over cast iron chips and rusts from underneath, while fiberglass flexes and dulls. A heavy cast iron tub is also a very different removal job than a lightweight shell, which is part of why one bathroom quote isn’t comparable to another.
| Option | Old tub stays or comes out? | Wall opened? | Function changes? | Best for |
|---|---|---|---|---|
| Refinishing / reglazing | Stays in place | No | No | Cosmetic wear only |
| Tub liner | Stays underneath | No | No | Fast surface update |
| Full replacement | Comes out | Yes | Possible new size, depth, or style | Damage or leaks |
| Tub-to-shower conversion | Comes out | Yes | Yes | Easy entry, more standing space |
When Refinishing Isn’t Enough: Signs the Bathtub Should Be Replaced
Watch for these:
- The tub floor flexes or feels springy when you stand in it
- Cracks in the shell, or rust bleeding through from underneath
- A soft or spongy spot in the floor beside the tub
- A musty odor that returns no matter how well you clean
- Loose tile, hollow-sounding panels, or caulk that fails again and again
- A slow drain, or a valve that never quite holds temperature
A coating or liner over any of these hides the problem instead of solving it. That’s the point where the bathtub should be replaced and the wall opened so we can see what the water has been doing behind it.
What a Proper Bathtub Replacement Includes (Behind the Tile Surround)
- Protect floors and adjoining rooms, then contain the demolition dust and mess.
- Remove the old bathtub and the wall finish around it.
- Inspect the supply and drain plumbing, the framing, and the subfloor.
- Repair any water damage found before new materials go in.
- Set the new tub level and fully supported so it never flexes.
- Detail the tub flange, wall backing, and every valve and spout penetration.
- Install fixtures, the shower enclosure, and working ventilation, then finish.
- Pull permits and schedule inspections where the work requires them.
A tile surround, a solid-surface wall system, and a one-piece shower surround each need their own waterproofing approach. Permitting is part of the process, not an afterthought. Every phase above happens in-house, under one roof, so no step falls through the gap between trades.
Where the Bathtub Fits Into a Full Bathroom Remodel
Plenty of homeowners call us about one bathtub and end up doing the whole room. Once the surround is open, tying in new flooring, a vanity, and lighting comes at a lower cost than treating it as a separate remodel next year. The reverse is true too: if the tub is solid and the room simply looks tired, cabinet refacing and a new countertop carry the design without touching the plumbing.
Should You Keep the Bathtub or Build a New Shower?
Think about how the room gets used, and keep resale in mind. Small children and overnight guests are a real argument for keeping a bathtub, and many buyers want at least one bathing option, so in a one-bath house the tub stays. If another bathroom already has one, converting the primary bath to a generous walk-in shower is one of the most satisfying remodels we do.
Design Ideas and Materials: Choosing a Tub Around How Your Family Lives
Wash your worries away. A good remodel starts with the people in the house, not the catalog. There’s no single perfect tub, only the one that suits how your family lives. An alcove tub and shower combination keeps a bathroom flexible. A deeper, elegant soaking tub earns its space every evening. A walk-in tub with a built-in seat changes what’s possible for someone with limited mobility. Then come the details: smooth, easy-care surround panels, a recessed niche instead of a corner caddy, slip-resistant floors, and fixtures and accessories that tie back to your vanity.
Safety Details Worth Building In Now
The CDC recommends grab bars inside and outside the tub for fall prevention, and the U.S. Access Board’s standards are a useful reference for placement, though ADA standards don’t automatically apply to a private home. Our advice on every bathroom remodel: add solid wall blocking to support bars later, even if you don’t want them today. It costs almost nothing now and plenty after the tile is set.
Easy Installation Still Needs the Right Waterproofing and Ventilation
A new bathtub is only as reliable as the water management around it. The 2018 International Residential Code sets a baseline of 50 CFM for an intermittent bathroom exhaust fan or 20 CFM running continuously, and that air must discharge outdoors, never into an attic. A remodel is the moment to confirm the fan actually moves air, and a ventilation upgrade is cheap insurance against condensation. Showerheads are capped at 2.5 gallons per minute at 80 psi, and WaterSense-labeled models use 2.0 or less.
How Long Does a Bathtub Remodel Take?
Some streamlined tub and shower surround projects can be completed in as little as one day. Others can’t, and we acknowledge that up front. Hidden damage, relocated plumbing, custom tile, or required inspections all add time. Installation day is also separate from your consultation, field measuring, material procurement, and permitting.
What Drives the Cost of a Bathroom Tub Remodel?
- Scope: refinish, full replacement, or tub-to-shower conversion
- Demolition and disposal
- Any plumbing relocation
- Damage discovered behind the shower surround
- Wall system, tile, and countertop materials
- Bathtub type and material
- Fixtures, safety features, and permitting
Those variables swing too widely for a meaningful figure online, so we price each bathroom remodel after we’ve seen the space and talked through your design. Refinishing is the more affordable path when the tub is sound, and replacement is what buys a real fix. Flexible financing is available, and a free estimate costs you nothing but an hour.
Planning a Bathroom Remodel in Post Falls, Idaho
The City of Post Falls Building Division issues and inspects plumbing permits, and its fee schedule lists “bathtub including shower” and “shower” as fixture categories, so tub work involving plumbing may require one. The city currently enforces the 2018 IRC, the 2017 Idaho State Plumbing Code, the 2023 National Electrical Code, and ICC A117.1-2009. Tub and shower valves must be pressure-balancing, thermostatic, or combination type, with the handle stop set for a maximum 120°F mixed-water setting. Older bathrooms here hide their share of surprises behind the surround, another reason we open the wall rather than coat over it.
Idaho uses contractor registration through the Division of Occupational and Professional Licensing rather than general contractor licensure, with proof of at least $300,000 single-limit general liability coverage required. We hold Idaho General Contractor Registration #RCE-64181 and are an EPA Lead-Safe Certified Firm, which matters in pre-1978 homes, where the Renovation, Repair and Painting Rule applies and demolition of painted components is covered regardless of area. Codes change, so confirm current requirements with the Building Division before your remodel begins.
Questions to Ask Before You Sign
Your search should end with a contractor who answers all of these without hesitation:
- Does the old bathtub stay or come out?
- Will the wall behind it be opened, and who inspects for hidden damage?
- Who pulls the permits and handles the plumbing?
- How is the shower wall system waterproofed?
- Are the installers part of your accountable project team or outside labor?
- What labor and manufacturer warranties apply, and what happens if concealed damage turns up mid-project?
We answer every one of those ourselves. That’s why we keep design, permitting, material procurement, fabrication, and installation under one roof, on one contract. You’ll know the guys working in your home by name, because they’re our own team.
Frequently Asked Questions
What is the average cost to redo a bathtub?
How can I redo my bathtub without replacing it?
Which design ideas make a small bathroom feel more spacious?
One Team. One Plan. One Beautiful Bathroom Remodel.
We’ve been family-owned since 2001 and have transformed homes for 19,000+ homeowners, and every one of those bathrooms was created by our own designers, fabricators, and installers. Each remodel carries a 24-month labor warranty, backed by the customer care that got us here. Come see tubs and surrounds at our Spokane area showroom, or call (916) 701-9660 to Schedule a Free Consultation.
