Fix a dripping faucet
Identify the valve type, then replace a matching serviceable cartridge without guessing at parts.
Home · 45–75 min · Intermediate
Before you start
Shut off both supplies and prove flow has stopped before opening the faucet. Stop for seized or leaking shutoffs, corroded connections, unidentified retainers or a stuck cartridge. Protect the finish and drain. Do not turn water on with the cartridge removed under this guide.
Tools and materials
- Towels and drain cover
- Correct handle tools
- Protected adjustable wrench or pliers
- Matching replacement cartridge and required seals/retainer
- Soft cloth and approved cleaning supplies
Check the problem
Find where the water appears
Dry the fixture and cabinet, turn the faucet off and observe. A continuing spout drip points toward the valve. Water at the base, handle, hoses or shutoffs requires a different diagnosis.
Identify the valve type before buying parts
Use the model’s parts diagram, not handle shape or cartridge color alone. This path is for a replaceable cartridge. Compression washers, ball mechanisms and other valve designs need their corresponding repair instructions.
Steps
Match the cartridge and service instructions
Use the faucet’s parts diagram to obtain the compatible cartridge and any required seals or retainer. Confirm the handle and retainer procedure before disassembly.
Shut off both supplies and prove zero flow
Close both supply stops and open the faucet to release pressure. Wait for flow to stop completely. If either stop leaks or fails to isolate, stop; do not force it.
Remove the handle and trim
Cover the drain and protect the finish. Locate the actual screw or release in the service instructions. Remove parts in order and photograph their orientation. Do not pry unexplained trim.
Remove the specified cartridge retainer
With water still off, remove the clip, nut or threaded retainer using the correct tool and method. Do not assume all retainers unscrew or share a tightening value. Stop if it is seized.
Lift out the cartridge and clean the seat
Remove the cartridge as directed; use a puller only if specified. Wipe loose debris with approved materials without scratching sealing surfaces. Keep water off and do not improvise an open-body flush.
Compare the old and replacement parts
Check the part number, ports, seals and locating features. Similar-looking cartridges can differ. If anything does not match the documented replacement, leave the supplies off and obtain the correct part.
Seat the replacement in the correct orientation
Align the locating features and hot/cold orientation, then seat it as directed without forcing. Use lubricant only where and when the kit’s instructions require it.
Refit the retainer and handle
Install the specified retainer and tighten to the model’s instructions—not a universal extra turn. Reassemble trim and handle, ensuring nothing binds.
Restore water slowly and test for leaks
With the faucet reassembled, restore the supplies slowly. Test hot, cold and mixed flow, then switch off. Dry-check the spout, handle, base, stops and disturbed joints. Stop and isolate again if the drip continues or a new leak appears.
The handle moves normally, hot/cold operation is correct, the spout stops dripping and all connections remain dry.
Tips
Color is not a part number
Use the service diagram or a confirmed replacement cross-reference, not visual resemblance alone.
Clips and nuts need different treatment
Keep the correct retainer and tightening method with the replacement instructions.
Watch after shutting the faucet off
Residual drops should stop. A persistent drip or wet joint means the repair is unfinished.