Shower Valve & Bathtub Faucet Repair and Installation in Paramount, CA
Cartridges to Full Conversions | Pressure-Balanced, Code-Compliant, Tile-Respectful | CSLB #1051553 | Se Habla Español
Shower valve work is where plumbing goes inside the wall, and where experience starts deciding outcomes. The valve behind your shower handle controls temperature, pressure balance, and scald protection, and replacing one properly means understanding what is behind the tile before anything touches it.
Ser Plumbing repairs the cartridges that can be saved, replaces the valves that cannot, and converts old three-handle tub setups to modern single-handle, pressure-balanced systems, with wall access planned to spare your tile wherever the job allows it.
and conversions
The Problem: Why People Call
Six symptoms cover almost every shower and tub call. Each one points somewhere different behind the wall.
What’s Covered
Cartridge and valve repair
Cartridges, seats, springs, and O-rings for Moen, Delta, American Standard, Pfister, and most major valve families, extracted with the right pullers and reassembled to factory spec. When the cartridge saves the valve, that is the quote.
Shower valve replacement
Full valve-body replacement with modern pressure-balanced hardware, set to code, with scald protection adjusted for your household. Includes the in-wall soldering or press connections, secure mounting, and trim that lands centered and flush.
Three-handle to single-handle conversions
The signature project: Out with the hot-cold-diverter triple, in with one pressure-balanced control. Includes valve, in-wall piping changes, and the wall-access plan; large conversion cover plates frequently bridge the old handle holes so the existing tile survives.
Bathtub faucets, spouts, and diverters
Tub spout replacement, diverter repair, and the tub-filler side of the wall, matched to the valve work so finishes and function agree.
Trim upgrades
New handles, escutcheons, and shower heads on healthy valves: the cosmetic refresh that costs a fraction of valve work when the internals are still sound.
Accessibility and safety upgrades
Anti-scald settings, lever handles, and hardware choices for aging-in-place bathrooms, done thoughtfully rather than clinically. When a future grab bar or seat is on the horizon, we will coordinate valve and trim placement so today’s plumbing never blocks tomorrow’s safety upgrade.
Full shower or bathroom remodels: we handle the plumbing inside a remodel, but tile, pans, and glass belong to your remodel contractor
Deck-mounted sink and bar faucets → Faucet & sink services
Pricing
In-wall work is quoted after the access conversation, and here is where it typically lands:
What moves the number: the valve family, how the wall opens (rear access, cover plate, or tile), what the piping behind it needs, and the trim you choose. Access strategy is discussed before the quote, so the number you approve already reflects how your tile fares.
Standard labor discounts apply. Free estimates cover replacements and conversions.
Why Ser Plumbing for Shower Work
Cartridge first, replacement second
Extraction tools and brand knowledge mean cartridges that other shops call impossible come out here. The valve gets saved when saving it is real.
Tile-respect as a planning discipline
Access is designed before anything is cut: rear entries, conversion plates, and mapped cuts that trim will cover. Sixty-year-old tile deserves a plan, not an apology.
Pressure balance done properly
Every replacement lands code-compliant and scald-protected, with the limit stop actually adjusted. It is the difference between installing a part and delivering a safe shower.
In-wall competence
Soldering in a wall cavity next to framing is exactly where experience shows. This is the work where our reviews talk about warnings we gave that saved future failures.
Conversions without the remodel
Three handles to one, tile preserved, one project. The bathroom modernizes without becoming a construction site.
What Customers Around Paramount Say About Our Shower & Tub Work
The reviews below load directly from our Google Business Profile. Nothing curated, nothing trimmed.
“Called last minute when the bath tub hot water valve fell apart.”
Thomas D. · December 2025 · last-minute call, both tub valves replaced same visit, plus a warning about overtightening that saved a future failure Read this review on Google →“Everyone was very professional and did an excellent job. My bathroom looks so much better after the sink and bathtub faucet installations. I will always choose SER Plumbing for any of plumbing or heating projects.”
Michelle A. · September 2025 Read this review on Google →“Timely, informative and friendly. Offered options I was able to understand. Job done quickly and they cleaned up after themselves!”
Pamela H. · September 2024 Read this review on Google →More reviews, live from Google. The widget below loads our latest verified Google reviews in real time. Nothing curated, nothing trimmed.
Leave Us a Google Review ↗Shower & Tub FAQs
Sixteen straight answers to the questions we hear on the phone every week.
Ask us directly ↗Why does my shower drip after I turn it off?
Do you have to open the wall or cut my tile?
Not always, and never carelessly. Rear-wall access, conversion cover plates, and cuts mapped to what trim will hide are all standard strategies, chosen before quoting. When tile must open, you will know exactly where and why first.
What does shower valve replacement cost?
Typically, $695 to $2,500, moved by the valve family, how the wall opens, piping changes behind it, and tile conditions. Conversions from three-handle setups typically run $850 to $1,500. Nothing starts until the number is on paper.
Can you convert my three-handle shower to a single handle?
Yes, it is a signature project here: one pressure-balanced control replacing the triple, large cover plates bridging the old holes so existing tile usually survives, and a bathroom that stops feeling its age.
Why does the temperature jump when someone flushes?
Your valve predates pressure balancing. Modern valves hold mix steady through pressure swings, which is why they are code on new work; a household with kids or older residents should not wait for the remodel to get one.
Is a dripping shower really worth fixing quickly?
Yes, twice over: a hot-side drip pours heated water down the drain around the clock, and the mineral deposits it feeds are exactly what seize cartridges into valve bodies. Early repairs stay small here.
Shower & Tub Service Across Paramount, Downey, Bellflower, Lakewood, Long Beach & SE LA County
Shower valve and bathtub faucet service from our Paramount shop across Bellflower, Downey, Lynwood, South Gate, Compton, Bell Gardens, Bell, Walnut Park, Santa Fe Springs, Lakewood, Norwalk, Long Beach, Maywood, Artesia, Cerritos, East Rancho Dominguez, and the surrounding communities. No travel fee within 15 miles of Paramount.
The valve behind the wall deserves a plumber in front of it.
Call (310) 953-3566.
Call (310) 953-3566 ↗