How Long Does Bathtub Reglazing Last?

What controls the number

What the 10-to-15-year range actually depends on

When somebody in Glenview asks me whether their tub will go ten years or fifteen, my honest answer is that the number gets locked in the day I spray it — and then held or lost a week at a time after that. Three things pull it one way or the other: the prep hidden under the gloss, the material the tub is built from, and how hard the household runs the bathroom once the coat cures.

The prep is the heaviest lever by a wide margin, and most people never see it. A real reglaze is not a coat — it is a built-up system. I pull the old caulk, scrub off soap film and body oil, fill chips and grind out rust, open up the porcelain with an acid etch (or scuff-sand a fiberglass shell, which acid will not touch), wipe on a tie-coat primer, then float on several thin passes of two-part acrylic-urethane. Every layer earns its place, and stacked together they marry the new skin to the old tub so it acts like one solid piece. Drop any single step and the failure is already baked in. That is exactly why a kit coat a prior owner rolled on in a Fruitvale duplex is lifting at the rim by year three, while a cast-iron tub I sprayed in a Rockridge bungalow back in 2014 still throws a clean reflection today.

The substrate underneath sets the ceiling. Oakland's housing stock leans old, and that is good news for longevity: the city is full of porcelain-over-cast-iron tubs from the 1900s through the 1940s, sitting in Craftsman bathrooms from Temescal to Maxwell Park. Cast iron and pressed steel are rigid, so a bonded finish barely moves when you step in, and those tubs reliably land at the top of the range. The 1980s and 1990s fiberglass and acrylic units common in Adams Point and Grand Lake apartment conversions are the opposite — the shell flexes a little under weight, and flexing is the number-one cause of an early hairline. We compensate by feathering the topcoat slightly thicker over the floor and reinforcing any soft spot before we spray, which is why a correctly handled fiberglass tub still reaches a decade.

The last variable is the house it lives in. A powder-room tub in a Crocker Highlands home that sees a guest twice a month will outlast the exact same coat in a packed Laurel duplex where two kids get bathed every night — both pass ten years easily, but volume of use, plus whatever cleaner sits on the shelf, decides which end of the range a tub lands on. The good fortune here is the water: Oakland's tap comes mostly off the Mokelumne River, so it is only middling hardness and spots far more politely than the Santa Clara Valley's, though it will still build a film if you let a tub air-dry full. For perspective on cost, independent 2026 pricing from Angi and HomeGuide pegs professional bathtub refinishing nationally between $200 and $1,000, around $490 on average; my Oakland tubs sit at $715 to $885 because the prep is thorough — and that buys a finish good for 10 to 15 years rather than the 3 to 5 a roll-on kit gives up.

Written and reviewed by Michael Garlikson, owner and lead refinisher at Oakland Tub & Tile Refinishing, from years spraying tubs across the East Bay. Last updated June 2026.

Why finishes fail early — and the fix

Why some reglazing peels, and whether it can be fixed

When a coat curls up in sheets a season or two after it went on, nothing wore out — it was never bonded in the first place. I read four signatures on a failed job, and each one points to a specific shortcut. A coat peeling in wide, clean flakes with a shiny back means the porcelain was never etched, so the primer had nothing microscopic to grab. Tiny blisters or fish-eyes mean the prep skipped the degrease and the coat went down over body oil or silicone. A finish that lifts only along the floor and the drain usually means a flexing fiberglass shell or trapped moisture, not bad spraying. And a chalky, powdery edge where it meets the tile is moisture wicking in from a dead caulk seam. I have stripped enough $40-kit jobs off tubs in Dimond, Maxwell Park and the Laurel to recognize each one on sight.

Here is the better news: peeling is almost always reversible, and a proper redo restarts the whole lifespan. I take the failed coat down to bare substrate, run that surface through the full prep stack the original never got — degrease, etch or scuff, repair, prime — and re-spray it so it locks the way it should have the first time. Handled right, the clock resets to the full 10 to 15 years, for a fraction of what a new tub plus demolition would run. If yours is starting to curl, do not roll a fresh coat over it; that buries the failure and buys maybe a month. Send me a couple of photos and I will tell you straight whether it strips and re-sprays clean or whether it is past that point.

And sometimes it is past that point — knowing when to walk away is part of doing this honestly. If the porcelain is cracked clean through the body, if a fiberglass floor gives under your weight, or if the steel underneath has rusted through from behind, a coating cannot fix a structural problem and I will tell you so instead of selling you a finish that is doomed. Two fixtures I routinely send elsewhere: a genuinely valuable antique clawfoot a collector wants showroom-perfect is better off at a re-porcelain (vitreous re-enameling) shop than under a sprayed coat, and a cheap big-box acrylic tub already cracked at the drain is usually cheaper to swap than to chase. There is also a quiet trap in Oakland's older flats — reglazing over a leak. A worn overflow gasket or a slow drain shoe lets water seep behind the coat and peel it from the edge in, and the spray takes the blame for a plumbing fault. So before I mask anything I check the drain shoe, the overflow gasket and the caulk line, and I will send you to a plumber first if that is what the tub actually needs. The full sequence is on our process; the numbers are on the pricing page.