Common bathroom plumbing problems
Toilets, sinks, showers and tubs all rely on valves, seals and drains that wear with use. Flappers in toilet tanks harden and warp, letting water leak into the bowl. Faucet cartridges and washers wear, causing drips. Shower valves develop leaks or temperature problems. Drain stoppers and traps collect hair and soap residue.
Many of these repairs are straightforward when caught early. A running toilet can waste a surprising amount of water each day, but replacing the flapper or fill valve often solves it. A dripping faucet usually needs a new cartridge or washer. Slow drains often need cleaning of the trap or stopper assembly.
Hidden leaks are more serious. A failed wax ring under a toilet, a leaking shower pan or a drain connection that has worked loose can soak subfloors and ceilings below before showing visible signs. Staining, soft flooring, loose tiles and musty odors are warning signs that call for investigation.
We repair and replace bathroom fixtures, valves, supply lines and drains, and we can help plan fixture replacements during renovations. Slow bathroom drains that do not respond to simple cleaning may need the equipment described on our Drain Cleaning page.
How bathroom repairs are handled
Most fixture repairs are completed in a single visit.
Diagnosis
We identify the source of the problem, whether it is a worn part, a failed seal, a leaking connection or something hidden behind a wall or floor.
Options and pricing
You receive clear options, such as repairing a faucet or replacing it, with prices stated before work begins.
Repair or replacement
Parts are replaced or fixtures installed carefully, with attention to protecting finishes and flooring.
Testing
Repaired fixtures are tested for leaks and proper operation, including checking drains and supply connections.
Cleanup and advice
We clean up the work area and mention any other issues noticed, such as corroded supply lines or shutoff valves that may need attention.
Bathroom plumbing issues worth fixing promptly
Early repair usually costs less and prevents water damage.
- Toilet runs or refills on its ownA worn flapper or faulty fill valve lets water leak continuously from the tank to the bowl.
- Toilet rocks or leaks at the baseA loose toilet or failed wax ring can let water seep under the flooring.
- Dripping faucet or showerheadWorn cartridges, washers or valve seats cause constant drips that waste water and stain fixtures.
- Low shower pressureMineral buildup in showerheads, failing valve cartridges or supply problems can reduce flow.
- Water stains on the ceiling belowStains under a bathroom often indicate a leak from a toilet, shower or drain above.
- Loose or cracked tiles near the tub or showerDamaged grout and tiles can let water behind the wall, and leaking valves or pans can cause similar signs.
What affects bathroom repair scope
Simple repairs such as flappers, fill valves and faucet cartridges are quick. Repairs involving shower valves, hidden leaks or drains inside walls take longer and may require opening walls or ceilings. Older fixtures with discontinued parts may be more practical to replace than repair.
When repairs require opening walls or floors, we explain the scope before starting and try to limit disruption. Tile and drywall restoration after plumbing repairs may involve other trades, and we explain what will be needed.
Bathroom leak or fixture problem?
Call to schedule repair. If water is leaking, shut off the fixture's supply valve or the main water valve until we arrive.
Shower valve problems
Shower valves control water temperature and flow. Pressure-balancing valves adjust to keep temperature steady when water pressure changes elsewhere in the house, such as when a toilet flushes. When these valves fail, showers may turn suddenly hot or cold, or struggle to reach a comfortable temperature.
Many shower valve problems can be fixed by replacing the cartridge. Older valves or those with discontinued parts may need replacement, which usually requires access through the wall behind the valve or through the trim opening. We explain the options for your valve type.
Toilet repairs and replacement
Most toilet problems involve the tank components. Flappers, fill valves and flush valves can be replaced to stop running, weak flushes and slow refills. Toilets that rock on the floor need their bolts tightened or the wax ring replaced, and a damaged flange may need repair.
When a toilet is cracked, uses excessive water or constantly clogs, replacement may be the better choice. Modern toilets use less water per flush than older models and often perform better. We can recommend models suited to your bathroom and install them properly.
Protecting against water damage
Knowing where your shutoff valves are is one of the best ways to limit water damage. Each toilet and sink should have a shutoff valve beneath it, and every home has a main water shutoff. Old valves can seize or fail to close fully, so testing them occasionally and replacing faulty ones is worthwhile.
Supply lines to toilets and faucets also wear over time. Braided stainless lines are more durable than older plastic or rubber lines. If your bathroom is in an area exposed to cold, such as along an exterior wall, protecting pipes from freezing matters too, as covered on our Frozen Pipe Repair page. Hot water complaints may also trace back to the source, handled through our Water Heater Repair service.
Bathroom drains, traps and vents
Every bathroom fixture has a trap, a curved section of pipe that holds water to block sewer gases from entering the home. Traps under sinks collect hair, soap and debris, and cleaning them is often all a slow drain needs. Tub and shower drains have their own traps below the floor, which are harder to reach and may need a cable machine.
Plumbing vents let air into the drain system so water flows smoothly and traps stay filled. When vents are blocked by debris or were installed incorrectly, drains can gurgle, flow slowly or pull water out of traps, allowing sewer odors into the bathroom. If a bathroom drain gurgles or smells despite being clear, the venting deserves a look.
Bathroom plumbing questions
Why does my toilet keep running?
The most common causes are a worn flapper that lets water leak into the bowl or a fill valve that does not shut off properly. Both are usually simple repairs.
How do I know if my toilet wax ring is leaking?
Signs include water around the base of the toilet, a toilet that rocks, sewer odors or staining on the ceiling below. A leaking wax ring should be replaced promptly to prevent subfloor damage.
Why is my shower pressure low?
Low shower pressure can come from mineral buildup in the showerhead, a failing valve cartridge, partially closed valves or supply issues. We check each possibility to find the cause.
Should I repair or replace my bathroom faucet?
If the faucet is in good condition and parts are available, replacing the cartridge or washers is often enough. Faucets with corroded bodies or discontinued parts may be better replaced.
Why does my shower suddenly turn hot or cold?
This often happens when a pressure-balancing valve is failing or when the home lacks one. Replacing the valve cartridge or the valve itself can restore stable temperatures.
More help for bathroom plumbing
Bathroom problems often connect to drains, water heaters and pipes.