







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Ameristar Bathroom Remodeling: The Pasadena Owner’s Guide
We install and replace Ameristar bathroom remodeling components throughout Pasadena, with most full Ameristar bathroom remodels running between $9,000 and $28,000 depending on shower size, valve configuration, and tub or surround choice. Homeowners usually reach us after a shower valve starts dripping, a tub surround cracks, or a shower pan develops a slow leak behind the wall. If you’re holding a failed Ameristar tub or shower part and want it matched to what’s behind your wall, we’ll identify it, price the whole repair or remodel in writing, and schedule the work around your family’s actual daily routine.
Key Takeaways:
- Ameristar bathroom remodels in Pasadena typically cost $9,000 – $28,000 installed.
- We identify the exact Ameristar series before any work, so you’re never guessing on valve size or drain configuration.
- Written line-item price before work starts, every time, on every project.
- Drop cloths down, shoe covers on, and a photo of the clean-up before the crew leaves.
Which Ameristar Models This Applies To
Ameristar tubs, shower surrounds, and acrylic wall systems span several series lines, and the part that fails is almost never interchangeable across them. The drain opening alone can vary between 1.5″ and 2″ depending on whether the unit was sold as a tub-only, a tub-and-surround combination, or a standalone shower base. If you’re replacing a surround, the nailing flange profile matters too, because Pasadena homes built before the mid-1980s often have stud spacing at 16″ on center with older plaster substrate, and a newer Ameristar surround won’t seat cleanly against it without careful shimming. The model label, when present, is usually printed on the back side of the tub apron or on the underside of the shower base, and the valve rough-in depth stamped on the trim plate is the quickest way to identify which mixing valve series belongs in your wall. We match the OEM part when the unit is still under warranty or when the surround color needs to blend invisibly. For off-warranty tubs and surrounds, we often recommend a quality aftermarket drain assembly or valve cartridge from Moen or Kohler, because the brass and ceramic internals are more repair-friendly over the long run than the original plastic components. Elmstead Remodeling is an independent contractor; we’re not affiliated with Ameristar, but we’ve worked on enough of their tub and shower systems across the San Gabriel Valley to know which series fails where and why.
Styles & brands we work with







Signs Your Ameristar Bathroom Remodeling Is Failing
Most Ameristar bathroom failures announce themselves quietly, then suddenly. Here’s what we see in Pasadena homes week after week.
- Shower valve drips no matter how tightly you close the handle: the cartridge seats have worn or mineral scale has built up past the point of cleaning. Pasadena water leans hard; scale is a bigger factor here than it is closer to the coast.
- A soft spot in the tub floor or shower base: the acrylic shell has lost its fiberglass backing bond, usually from years of flexing under weight. It will crack eventually, and when it does, water reaches the subfloor.
- Caulk lines that crack within weeks of being redone: the surround has shifted or the tub lip wasn’t secured properly during original installation. No amount of recaulking will hold until the unit is re-secured.
- Grout or sealant staining that won’t scrub clean: water is wicking behind the wall, not draining from it. The staining is the visible edge of a hidden moisture problem.
- A drain that gurgles or a shower that drains slower than it did a year ago: the drain shoe or the trap has begun to fail, and if it’s the rubber gasket, that’s a small repair now and a ceiling stain below later.
Replacement Cost & What’s Included
In Pasadena, a full Ameristar bathroom remodel runs $9,000 to $28,000. The low end covers a straightforward tub-to-tub or shower-to-shower replacement with a new Ameristar-compatible surround, valve, and trim. The high end covers moving plumbing, adding a separate tub and walk-in shower, new tile or a premium surround, frameless glass, and a custom vanity. The range isn’t coy; it’s honest about the difference between swapping a tub and reconfiguring the room. Line items that move the number: demo and haul-off of the old unit, valve replacement or relocation, waterproofing, surround or tile selection, glass, and finish plumbing. We write every line on the quote before we start, and Graham Stein will walk you through it. Elmstead Remodeling Pasadena also backs every completed bathroom project with the 365-Day Done Right Promise: if something isn’t done right after we leave, we make it right. Plus the written price before work starts, so the number you approve is the number you pay.
See the difference
Before
After
Before
After
Before
AfterDIY or Call Us?
Replacing a shower valve cartridge on an Ameristar system is a repair a handy owner can often do in an afternoon, provided the water shutoffs at the valve work and the old cartridge comes out without breaking. Replacing a tub, surround, or shower base is a different animal. A tub-and-surround unit is fiberglass and acrylic, and the drain waste and overflow assembly has to be compressed and torqued correctly or it leaks slowly for months before you see the stain on the ceiling below. Demo around a Pasadena bathroom with older plaster means controlling dust, protecting the rest of the house, and knowing where the cast iron or galvanized drain lines will fight you. If water is already where it shouldn’t be, or if the surround has separated from its backing, call us at (626) 714-2992 for a free estimate before opening the wall further. We’ll tell you over the phone whether it sounds like a part swap or a full replacement, no charge for the conversation.
FAQs

Ameristar acrylic tubs and surrounds typically last 15 to 25 years in Pasadena, with hard water and frequent use shortening that range; original valve cartridges usually need replacement every 7 to 10 years. Call (626) 714-2992 and we’ll assess what you have rather than guess over the phone.
Small cracks and chips in an Ameristar shower pan can sometimes be patched with a structural acrylic repair if the fiberglass backing is still intact, but soft spots and drain-area cracks usually mean the pan has failed and replacement is safer in the long run. The estimate is free, so call us and we’ll take a look.
Most Pasadena Ameristar tub or shower replacements in the same footprint take 5 to 10 working days from demo to final grout and fixture trim, depending on whether tile, glass, or plumbing moves are involved. We’ll schedule around your family’s sleep and school hours where possible.
We keep common Ameristar-compatible drain assemblies, valve cartridges, trim kits, and shower arms on the truck for the first visit, and we can source the exact Ameristar series part for pickup if your unit needs a model-specific replacement. Mention the model number when you call (626) 714-2992 and we’ll confirm availability before we arrive.
Call Elmstead Remodeling Pasadena
If you have an Ameristar tub, shower, or surround that’s failing, or you’re ready for a full Ameristar bathroom remodel in Pasadena, call (626) 714-2992 for a free estimate. We’ll put the written scope and the line-item price in front of you before a single drop cloth goes down, because the price you see on paper is the price you pay at the end, no footnotes. We also work with KraftMaid, Cambria, and Silestone when the project expands beyond the tub and into the vanity and countertops. Our crew comes background-checked and uniformed, with drop cloths on the floors, shoe covers at the door, and quiet tools during your household’s rest hours. Ask for Graham Stein or any of our scheduling team, and we’ll set a walkthrough that fits your actual life.
Written by Graham Stein, Owner, Elmstead Remodeling Pasadena at Elmstead Remodeling Pasadena, serving Pasadena and nearby areas.


