Faucet drips constantly
- Most likely
- Worn cartridge, O-ring or seat washer
- DIY approach
- Shut the stop valves, pull the handle, match the cartridge at the store, reassemble.
- When to call a pro
- Only if the valve body is corroded into the wall.
- Typical cost
- $8–$45 in parts, or roughly $135–$275 for a pro visit