Bathroom plumbing problems range from minor (a running toilet, a dripping faucet) to urgent (a sewage smell from a dry trap, a shower pan leak into the ceiling below). In older St. Louis homes, bathroom plumbing has the added complication of original cast iron drain stacks, galvanized supply lines, and fixture shutoff valves that haven't been operated in decades.
What Our Bathroom Plumbing Services Cover
Bathroom Faucet Repair
Dripping faucets, base leaks, low pressure from mineral buildup. All faucet types repaired same-day.
View Bathroom Faucet Repair detailsBathroom Faucet Installation
New faucet installed right — hole configuration confirmed, new supply lines, valve assessment included.
View Bathroom Faucet Installation detailsToilet Repair
Running toilets, slow flushes, rocking or leaking at the base, clogs, and wax ring replacement.
View Toilet Repair detailsToilet Installation
New toilet installation — standard, low-flow, and ADA-compliant models. Old unit removed and disposed.
View Toilet Installation detailsShower & Tub Repair
Shower pan leaks, tub faucet drips, mixer valve failures, slow drains, and shower pressure problems.
View Shower & Tub Repair detailsBathtub Installation
Professional bathtub installation — freestanding, alcove, and drop-in tubs with proper drain connections.
View Bathtub Installation detailsFaucet Repair
Dripping or leaking bathroom faucet repair — cartridge, O-ring, and valve seat replacement.
View Faucet Repair detailsWhich Bathroom Plumbing Service Do You Need?
"My toilet runs constantly or sounds like it's refilling"
→ You likely need: Toilet Repair — flapper, fill valve, or float adjustment
"My toilet wobbles or there's water around the base"
→ You likely need: Toilet Repair — wax ring failure, likely need to reset the toilet
"My shower lost hot water pressure but cold is fine"
→ You likely need: Shower Repair — mixer valve cartridge failure from scale buildup (common in St. Louis hard water)
"There's water staining on the ceiling below my upstairs shower"
→ You likely need: Shower Repair — shower pan leak, needs diagnosis before the ceiling is repaired
"My bathroom sink drains slowly but only in that sink"
→ You likely need: Faucet Repair — hair and scale clog at drain assembly
"I want to install a new toilet or faucet I already purchased"
→ You likely need: Fixture Installation — supply and drain connection, shutoff valve assessment
How We Handle Bathroom Plumbing Repairs
Diagnose the Actual Cause
Many bathroom plumbing calls are not what they appear to be. A 'slow drain' that's actually a partially blocked drain stack serving multiple fixtures is not simple. We identify the actual cause before starting work.
Repair or Replace the Failed Component
Most bathroom plumbing repairs are component-level work: replace the wax ring, swap the flapper and fill valve, replace the mixer cartridge, clear the drain, replace the supply lines and shutoff valves.
Check Connected Systems
Bathroom plumbing doesn't exist in isolation. After repairing a toilet, we check the floor for subfloor damage from a long-running wax ring leak. After clearing a shower drain, we confirm the drain stack is flowing properly.
What Affects Bathroom Plumbing Cost?
Toilet repair
Flapper/fill valve replacement: $150–$250. Wax ring and reset: $200–$350. Full toilet replacement: $400–$800 including fixture supply.
Shower/tub service
Mixer valve cartridge replacement: $200–$400. Shower pan leak repair: $300–$800+. Tub faucet drip repair: $150–$300.
Bathroom sink repair
Drain clearing: $150–$250. P-trap and supply line replacement: $200–$350. Faucet replacement: $250–$450 including fixture.
Fixture installation
Labor for fixture installation: $150–$350 depending on complexity and shutoff valve condition.
In older St. Louis homes, access panels are often not present where they'd be useful. Working in a tight chase behind a shower or under a vanity adds time.
What Our Customers Say
"Shower had been losing hot water pressure over several months. Plumber identified the mixer valve cartridge was scaled up — explained it's a common issue in St. Louis's hard water. Replaced the cartridge, pressure and temperature control are back to normal."
"Toilet had been rocking slightly for weeks. Found water damage under the bathroom floor when the plumber lifted the toilet — wax ring had been leaking for a while. Reset the toilet with a new wax ring, flagged the subfloor for repair."
"Hired to install a customer-supplied vanity faucet. Plumber found the shutoff valves under the sink hadn't been turned in 20 years and were stuck open — replaced both before installing the faucet. Solid work."
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Bathroom Plumbing FAQ
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314-237-0332