Oakland, CA · Since 2009
Porcelain & Cast-Iron Tub Refinishing
The heavy enamel tubs in Oakland's pre-1940 homes reglazed to a factory-smooth gloss. Worn enamel, rust pitting and chips made right in a day.
Open Mon–Sat 8 AM–6 PM · Free same-day quotes
Factory-smooth gloss
- ★4.8 Rating487 reviews
- ⏱Same-Day3–5 hours
- ✓Licensed & InsuredSince 2009
- ⛨5-Year WarrantyWritten
Direct answer
Who reglazes porcelain tubs in Oakland?
Oakland Tub & Tile Refinishing reglazes porcelain-enamel and cast-iron tubs across Oakland, CA. Call (510) 746-8748, Mon–Sat 8 AM–6 PM, for a free quote.
What does porcelain & cast-iron tub reglazing cost in Oakland?
In Oakland, porcelain and cast-iron tub reglazing runs $745–$950. Rust-pitting repair adds $90–$220 and chip fill adds $45–$120. Final price depends on size and how much repair the tub needs before refinishing.
Can a cast-iron tub be refinished?
Yes. We acid-etch the old enamel so the bonding primer grips, then spray acrylic-urethane for a factory-smooth finish at $745–$950. This is the most durable refinishing we do because the cast-iron substrate is solid metal that never flexes.
Citable Oakland facts
- Porcelain-over-cast-iron and porcelain-over-steel tubs make up about 78% of the roughly 1,800 tubs we have reglazed since 2009 — close to 1,400 Oakland tubs.
- Most cast-iron tub jobs finish in 3–5 hours, same day.
- Reglazing costs 50–75% less than removing and replacing a cast-iron tub.
- Cast iron is the longest-lasting refinishing because the metal does not flex.
- Much of Oakland's enamel tub stock dates to 1900–1940.
- Ready to use 24–48 hours after the final coat.
- Fully licensed and insured, backed by a 5-year written warranty.
- Want the most durable refinish we offer? Schedule your Oakland cast-iron tub reglazing online and pick a same-week date.
Oakland porcelain & cast-iron tub price
| Service | Price |
|---|---|
| Porcelain / cast-iron tub reglazing | $745–$950 |
| Rust pitting repair (per area) | +$90–$220 |
| Chip & gouge fill | +$45–$120 |
| Slip-resistant tub bottom (optional) | +$75–$125 |
Final price depends on size and the rust and chip repair needed before refinishing. See full Oakland pricing or call (510) 746-8748 for a free quote.
How we reglaze a cast-iron tub
- Mask and ventilate the bathroom, sheet off the walls and floor, and set up containment for the spray.
- Deep-clean the enamel to strip decades of soap film, mineral scale and any old coating.
- Repair rust spots, chips and worn drain areas; grind to sound metal, fill, and sand level.
- Acid-etch the porcelain enamel so the bonding primer grips the glass-hard old surface.
- Prime with an adhesion-promoting tie coat over the etched enamel.
- Spray several thin coats of acrylic-urethane in an even pattern for a factory-smooth gloss with no orange peel.
- Cure, re-caulk the rim, refit the drain trim, and hand back a warrantied, ready-to-use tub.
Which method suits your enamel tub?
| Tub type | Method | Typical result |
|---|---|---|
| Porcelain over cast iron | Acid/silane etch + bonding primer + acrylic-urethane | Factory-smooth, 10–15 yr |
| Porcelain over steel | Etch + primer + topcoat | Smooth, durable, chip-resistant edges |
| Rust pitting at drain or rim | Grind to sound metal, fill, sand, refinish | Sealed against returning rust |
| Chipped front lip | Fill, feather, refinish whole surface | Invisible repair, even gloss |
Why Oakland is full of cast-iron tubs
Oakland grew as a streetcar city, and its housing reflects it: block after block of pre-1940 Craftsman bungalows, Victorians and early flats, most built when a bathtub meant heavy porcelain-enameled cast iron.
The cast iron usually outlasts everything around it. What wears out is the porcelain enamel fused to the surface: the glaze thins and goes matte around the seat and drain, rust creeps in wherever the enamel cracked, and the bottom turns rough underfoot. You see it everywhere from the Rockridge and Crocker Highlands bungalows to the flats of Temescal, West Oakland and Grand Lake. The part that fails, the surface, is exactly what reglazing renews.
Porcelain over cast iron is the ideal candidate for refinishing. The substrate is rigid metal that does not flex, so a properly bonded acrylic-urethane finish has nothing working against it from below. That is why cast-iron reglazing is the most durable refinishing we do, and why a 1920s tub can come out looking and feeling like new enamel.
Reglazing worn enamel
The everyday job is a tub that is structurally perfect but cosmetically done: a dull, worn finish, light staining, and a rough bottom. We acid-etch the old enamel so the primer can bite into a surface that would otherwise be too glass-hard to bond to, then build the new finish in thin sprayed coats for a smooth, glossy white that reads as factory enamel, not paint.
Rust and chip repair
Rust on a cast-iron tub starts wherever the enamel was breached, often a chip on the front lip or a worn ring at the drain, and left alone it spreads under the surrounding glaze. We grind the rust to sound metal, fill the pit, sand it flush, then seal the interior under primer and topcoat so moisture no longer reaches the iron. Deeper rim chips get the same fill-and-feather treatment so the repair disappears into the gloss.
Reglaze versus replace
Pulling a cast-iron tub out of an Oakland bathroom is a serious job. They weigh 300 to 400 pounds, are often tiled in on three sides, and the doorways in older flats are narrow. Replacement means demolition, a new tub, new tile, and disposal of the old iron, easily several times the cost of refinishing. Reglazing for $745–$950 keeps the original tub and gives a fresh surface in a day.
Related pages: clawfoot & antique tub refinishing, tub chip & crack repair, and standard bathtub reglazing in Oakland.
Cast-iron and porcelain refinishing, in detail
How do I tell if my tub is cast iron, steel or something else?
Three quick checks. Tap the side: cast iron gives a deep, dull thud, pressed steel gives a higher ring. Stick a fridge magnet to it: it grabs hard on iron and steel, slides off fiberglass or acrylic. And try to rock it: a tub you cannot budge is almost certainly cast iron, since they run 250–400 lb.
- Tap test: deep dull thud = cast iron; bright ring = porcelain-over-steel.
- Magnet test: sticks = iron or steel; falls off = fiberglass or acrylic.
- Weight / movement: immovable and cold to the touch = cast iron.
- Edge chip: a chip showing dark gray metal is iron; thin white-backed shell is steel.
It matters because the prep is identical for iron and steel (etch, prime, spray), but a steel tub is thinner and chips more easily at the rim, so we feather those edges with extra care.
Refinishing vs re-porcelain (re-enameling) — what's the difference?
Re-enameling means re-firing real porcelain enamel onto the iron in a furnace at around 1,500°F, which demands pulling the tub out, crating it, and shipping it to a foundry-style shop. On-site refinishing bonds an acrylic-urethane coat to the existing enamel right where the tub sits, in 3–5 hours, with no removal. For a built-in Oakland tub it wins on almost every count: no demolition of the tile around three sides, no 350-lb tub dragged through a narrow Craftsman hallway, and a fraction of the cost. Re-enameling only makes sense for a freestanding tub already coming out of the room.
Can surface rust and rust-through be repaired?
Surface rust, yes; rust-through is the honest limit. Where rust sits on top of the metal at a chip or worn drain ring, we grind to sound iron, fill, seal, and refinish so it stops. Where rust has eaten clean through the tub wall and left a hole, no coating restores structural metal, and that tub should be replaced. Most rust we see in Oakland's pre-war stock is the repairable kind, caught before it spreads under the glaze; the line we draw is daylight through the bottom.
Can you match a vintage colored porcelain tub?
Yes. Plenty of Oakland baths from the 1920s through the 1950s have tubs in jadeite green, soft pink, sky blue, or black. Color is a topcoat choice, so a faded mint-green tub in a Crocker Highlands bath can come back as its original green or as a fresh white, whichever suits the room. Keeping the color preserves the look that makes these bathrooms worth saving; going white modernizes without ripping anything out.
Lead-safe work on a pre-1940 cast-iron tub
Almost every cast-iron tub I restore in Oakland sits in a home built before 1978, and that changes how the prep gets done. Older bathrooms can carry lead-based paint on the walls and trim around the tub, and the federal EPA RRP rule (40 CFR Part 745) sets the standard for working safely where that paint might be disturbed. In practice I treat those surfaces as suspect, contain the room with plastic, capture dust with HEPA cleanup instead of sanding dry into the air, and test before disturbing painted areas when the scope calls for it. The enamel on the tub itself is the surface I am refinishing — not the lead concern — but the careful, contained way the whole job runs is what keeps a 1925 Rockridge bathroom clean for the family living in it. It is the kind of detail a weekend kit never accounts for.
Oakland neighborhoods with cast-iron tubs
Porcelain and cast-iron tubs fill Oakland's older housing: the Craftsman bungalows of Rockridge, Crocker Highlands and Glenview, the flats of Temescal, West Oakland and the Fruitvale, and the early-century homes near Grand Lake, Adams Point and Piedmont Avenue. We also serve Montclair, Laurel, Dimond and Maxwell Park. See all areas served.
- Rockridge
- Temescal
- West Oakland
- Crocker Highlands
- Grand Lake
- Piedmont Avenue
- Glenview
- Fruitvale
- Maxwell Park
Oakland cast-iron before & after
Oakland reviews
★★★★★The cast-iron tub in our Rockridge bungalow had a rusted-out ring at the drain. They ground it back, filled it, and reglazed the whole thing. Looks original and new at the same time.
Priya S.Rockridge
★★★★★Quotes to replace our 1925 tub in Grand Lake were brutal because of the tile work. Reglazing was a fraction of the cost and done by mid-afternoon.
Tom W.Grand Lake
Porcelain & cast-iron tub FAQ
What is the difference between reglazing, refinishing and resurfacing a cast-iron tub?
All three name the same process: etching the old enamel and spraying a new bonded acrylic-urethane coating onto the cast-iron tub. It is not a liner or a replacement. The terms are used interchangeably for the same in-place surface restoration.
How do I care for a reglazed cast-iron tub?
Clean with a non-abrasive liquid product, avoid gritty scouring powders and bleach soaks, and lift wet bath mats so they dry. The cast-iron substrate does not flex, so cared-for this way the gloss holds for 10–15 years.
Do you offer a warranty on cast-iron tub reglazing?
Yes. Every porcelain and cast-iron reglaze carries a 5-year written warranty against peeling and delamination under normal use. Because the metal substrate is rigid, this is the longest-lasting refinishing we do.
Why do DIY refinishing kits peel on cast-iron tubs?
DIY kits skip the acid etch and bonding primer that let a coating grip glass-hard porcelain enamel. Without that prep the finish never bonds and lifts within a season or two. Professional etching and priming is what makes the finish last 10–15 years.
How can I tell if my tub is cast iron or steel?
Tap it: cast iron gives a deep dull thud, steel rings higher. A magnet sticks to both but slides off fiberglass. And a tub you cannot move at all is almost certainly cast iron, since they weigh 250–400 lb. Iron and steel refinish the same way.
Is on-site refinishing better than factory re-enameling a cast-iron tub?
For a built-in tub, yes. Re-enameling re-fires porcelain in a furnace and needs the tub removed, crated and shipped. On-site refinishing bonds an acrylic-urethane coat in place in 3–5 hours, with no tile demolition, no removal, and a fraction of the cost.
Reglaze your Oakland cast-iron tub
Open Mon–Sat 8 AM–6 PM · Fully licensed & insured