The Most Common Household Plumbing Leaks and How to Fix Them
Plumbing leaks are one of the most common and frustrating issues homeowners face. Whether it’s a dripping faucet, a leaking toilet, or a hidden pipe leak, water waste and potential damage can quickly add up. In this guide, we’ll cover the most common household leaks, their causes, and when to attempt a DIY fix versus calling a professional.
1. Faucet Leaks
A dripping faucet is not just annoying—it can waste gallons of water every day. The most common cause is a worn-out washer, O-ring, or cartridge inside the faucet.
DIY Fix:
Turn off the water supply under the sink.
Disassemble the faucet handle and replace the damaged washer or cartridge.
Reassemble and test for leaks.
When to Call a Pro:
If the leak persists after replacing the internal components.
If the faucet body is cracked and needs replacement.
2. Toilet Leaks
Toilets can develop leaks at the base, tank, or inside the bowl due to faulty seals, worn-out flappers, or cracks in the porcelain.
DIY Fix:
For running toilets, replace the flapper inside the tank.
If water pools around the base, tighten the toilet bolts or replace the wax ring.
Check the tank bolts and seals for leaks.
When to Call a Pro:
If the toilet base is cracked and leaking.
If the wax ring replacement doesn’t stop the leak.
3. Water Heater Leaks
Water heater leaks can be dangerous, leading to water damage or even electrical hazards. Leaks usually stem from a faulty temperature and pressure (T&P) relief valve, corroded tank, or loose plumbing connections.
DIY Fix:
Tighten loose inlet and outlet connections.
Flush the tank to remove sediment buildup.
Replace a faulty T&P valve.
When to Call a Pro:
If the water heater tank itself is leaking—it usually means replacement is needed.
If the unit is over 10 years old and showing signs of failure.
4. Pipe Leaks
Pipes can leak due to corrosion, high water pressure, or loose fittings. Small leaks can lead to major water damage if left untreated.
DIY Fix:
Use plumber’s tape or pipe sealant for minor leaks.
Tighten loose joints with a wrench.
When to Call a Pro:
If pipes are severely corroded or burst.
If leaks occur inside walls, ceilings, or foundations.
Final Thoughts
While some minor plumbing leaks can be fixed with DIY repairs, major leaks or hidden issues require high quality, professional attention. Address leaks quickly to prevent costly water damage and high utility bills. If you’re unsure, it’s always best to consult a licensed plumber. R&R HVAC and Plumbing, Temecula’s trusted local plumber, 951.239.0369