Bathtub Refinishing Cost Calculator

How much does it cost to refinish a bathtub?

A professional refinish of a standard 60-inch alcove tub typically costs $350-$650 nationally. Using this calculator's defaults (polyurethane finish, cast-iron tub, Midwest labor rates), the range is $360-$585 with a typical price of $475. Choosing the cheaper epoxy finish in the same scenario gives $315-$495, typical $405. That tracks published national data: HomeAdvisor reports an average of about $480 with a $335-$630 range.

What factors change the refinishing price the most?

Finish type is the biggest lever: epoxy is cheapest ($315-$495 typical in the Midwest), polyurethane with a urethane topcoat costs more ($360-$585), and an acrylic liner runs $1,080-$1,710. Tub material matters too (cast iron is the baseline; acrylic tubs cost about 15% more to prep), and so does shape - a clawfoot or freestanding tub costs roughly 35% more than a standard alcove because of the extra surface area. Region is the other major swing: the same epoxy job that costs $315-$495 in the Midwest runs $450-$705 in California, a 1.28x labor multiplier.

How much does DIY bathtub refinishing cost?

A basic roll-on DIY kit plus supplies totals about $70-$140, typically $105 ($30-$60 for the kit, $40-$80 for sandpaper, cleaner, masking, and a respirator). A premium 2K epoxy spray kit runs $120-$230, typically $175, and takes 6-10 hours of your time. The trade-off is durability: DIY finishes generally last 1-3 years versus 7-10 for a pro polyurethane job, which works out to about $52.50 per year of life for DIY versus $55.88 for the pro job - nearly identical annual cost, but the DIY route means redoing it far more often.

How long does a refinished bathtub last?

It depends on the finish: epoxy coatings last 5-7 years, polyurethane with a urethane topcoat lasts 7-10 years, acrylic liners last 10-15 years, and DIY kit finishes last 1-3 years. A brand-new replacement tub lasts 25+ years. Measured as cost per year of service, a pro polyurethane refinish at $55.88/yr is far cheaper than full replacement at $165.60/yr, while DIY at $52.50/yr looks cheap only until you count the weekends spent re-applying it every couple of years.

Is refinishing cheaper than replacing a bathtub?

Dramatically. A full replacement (fiberglass tub, demolition, plumbing adjustments, tile/surround repair, install labor, Midwest rates) runs $2,430-$5,940 with a typical cost of $4,140. A pro polyurethane refinish of the same bathroom's tub costs $360-$585, typical $475. That is a saving of about $3,665, or 88.5%. The savings alone pay for roughly 2.9 years of refinish-equivalent service. Replacement only wins on the math when the tub has structural damage - soft spots, major cracks, or a flexing shell that no coating can fix.

What is an acrylic tub liner, and is it worth the price?

An acrylic liner is a custom-molded acrylic shell fitted over your existing tub - essentially a tub-within-a-tub. It costs $1,080-$1,710 (typical $1,350 in the Midwest) and lasts 10-15 years, which is about $108 per year of service. Compared with a $475 pro refinish ($55.88/yr), the liner costs more than twice as much per year of life, but it looks and feels like a brand-new acrylic tub with no spray fumes. Watch-outs: it slightly reduces interior space, and if water ever gets trapped behind the liner it can hide damage - proper installation and caulking are critical.

Can any bathtub be refinished?

Cast-iron (porcelain-on-iron) tubs are the ideal candidates and the baseline for pricing. Enameled steel, fiberglass, and acrylic tubs can all be refinished, but they need extra surface prep, which adds roughly 5-15% to the cost. What refinishing cannot fix is structural: a tub that flexes underfoot, has soft rot in the floor beneath it, or leaks is a replacement job, not a refinish job. One more cost trap: a tub previously coated with a DIY kit usually needs the old coating stripped first, which most pros charge extra for - tell them upfront.

How long does refinishing take, and when can I use the tub?

A pro typically needs 3-5 hours on site for a standard tub: deep clean, repair chips, acid-etch or sand, apply bonding agent, then spray the finish coats. After that, the coating needs 24-48 hours to cure before the tub can be used - plan on showering elsewhere for at least a day. DIY jobs stretch across a weekend (6-10 hours of active work) and many kit manufacturers recommend a full 72-hour cure. Rushing the cure is the most common reason DIY finishes peel within months.

What prep work adds to the bill?

Common adders are chip repair ($75), rust repair and treatment ($100), anti-slip coating ($75), a full color change ($100), re-caulking ($50), and reglazing the tile surround above the tub ($150). They stack: for example, a polyurethane refinish with chip repair and anti-slip coating in the Northeast runs $620-$915 with a typical price of $770, versus $360-$585 typical $475 for the same tub with no prep in the Midwest. Get itemized quotes so you can see which adders are actually necessary for your tub's condition.

Is bathtub refinishing safe? What about fumes?

Professional refinishing uses strong chemicals - acid etchers, bonding agents, and isocyanate-based hardeners - so the bathroom must be ventilated and the home's occupants (and pets) should stay out during spraying and for the first 24 hours of curing. Reputable pros bring exhaust ventilation and wear respirators; DIYers should wear a proper respirator, not just a dust mask, and keep the space ventilated. Once fully cured (after the recommended 24-72 hours), the coating is an inert hard surface. This is general information, not professional safety advice - follow the product's safety data sheet and local regulations.

Does refinishing a bathtub add home value?

It improves presentation, which can matter when selling: a stained, chipped tub photographs badly and signals deferred maintenance to buyers. A $475 refinish that makes a bathroom look renovated is cheap staging compared with a $4,140 replacement. That said, refinishing is cosmetic - appraisers and buyers treat it like fresh paint, not like a remodel. If you are renovating to raise the home's value, a refinish is a polish step, not an investment with a measurable return.

When should I replace instead of refinish?

Replace when the problem is structural, not cosmetic: the tub flexes or creaks under weight, there is soft or rotted subfloor beneath it, large cracks run through the shell, or you are changing the layout or tub size anyway. Also replace if the tub has lead-based paint layers you do not want encapsulated - consult a licensed lead-abatement professional for that call. Budget for $2,430-$5,940 (typical $4,140 in the Midwest for a fiberglass tub with surround repair); the 80-90% savings of refinishing only apply when the tub is structurally sound.