Bathroom plumbing
Bathroom plumbing covers the toilet, the shower and tub valves and drains, the vanity sink and faucet, and the supply and drain lines in the walls and floor. The most common repairs are running or clogged toilets, slow tub and sink drains, dripping faucets and shower valves, and leaks that show up on the ceiling below.
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Bathroom Plumbing services
Why is water coming through the ceiling under my bathroom?
Usually a toilet wax ring, a shower pan or drain gasket, a tub overflow, or a supply line. Testing each fixture separately narrows it down.
If it drips with nothing running, it's a pressurized supply line: close the main and call. See water leaking from the ceiling.
Why does my shower go hot and cold?
A worn pressure-balancing cartridge or valve can't keep up when other fixtures draw water. Replacing the cartridge often fixes it.
Older single-valve showers without pressure balancing can be upgraded during a remodel.
What plumbing changes need a permit in a bathroom remodel?
Moving fixtures, adding drains or vents, and replacing valves in walls usually need a permit and inspection; swapping a faucet or toilet in place usually doesn't.
Rules vary by city. See bathroom remodel plumbing.
Common bathroom plumbing problems
Bathroom Plumbing questions
Why does my bathroom smell like sewage?
A dry trap in an unused shower or floor drain is the most common cause, followed by a dirty sink overflow and a failed toilet seal. See sewer smell in the house.
Can I replace a toilet myself?
Many homeowners can, but a damaged flange, a corroded shutoff valve or a soft subfloor turn it into a job for a plumber.
Why does my tub drain slowly?
Hair and soap on the stopper linkage or in the trap. Pulling the stopper and cleaning it fixes most slow tub drains.