Plumbing service
Faucet repair and replacement
Short answer
A dripping faucet usually needs a new cartridge, washer or seals, and the right part depends on the faucet type: compression, cartridge, ball or ceramic disc. Low flow is usually a clogged aerator. Leaks under the sink are often a loose or worn supply line connection. Replacement makes sense when the faucet is corroded or parts aren't available.
Updated · Editorial team; not yet technically reviewed
Faucet Repair and Replacement at a glance
- Drip from the spout
- Worn washer (compression), cartridge, or disc seals.
- Leak at the handle
- O-rings or a worn cartridge.
- Low flow
- Clogged aerator or debris in the cartridge.
- Under-sink leak
- Supply line, valve, or the faucet's connections.
Know your faucet type
| Type | How to tell | Usual drip fix |
|---|---|---|
| Compression | Separate hot and cold handles that tighten down | Replace washers and seats |
| Cartridge | Single or double handle; smooth motion | Replace the cartridge (match brand and model) |
| Ball | Single handle over a rounded cap, common on older kitchen faucets | Replace seats, springs and O-rings |
| Ceramic disc | Single lever on a wide cylindrical body | Clean or replace the disc cartridge and seals |
Repair steps
Shut off the water
Use the valves under the sink, then open the faucet to relieve pressure.
Plug the drain
Small parts disappear easily.
Remove the handle and cartridge
Note the orientation of each part; photos help.
Take the old part to the store
Or find the brand and model; most manufacturers sell replacement cartridges.
Reassemble and test
Open the supply valves slowly and check for leaks above and below the sink.
When to replace instead
- The body is corroded or cracked.
- Parts are no longer made for it.
- The sink holes don't match what you want (check hole count and spacing before buying).
- You're also replacing the sink or countertop; see sink installation and remodel plumbing.
What affects the cost
- Repair parts: washers are inexpensive, while brand-specific cartridges cost more
- Faucet quality and finish if replacing
- Corroded supply valves that should be replaced at the same time
- Tight access under the sink, especially with a disposal or filtration system
- Whether the sink or countertop must be drilled for a different hole configuration
We don't publish prices; they vary by market. Get a written quote first.
Common questions
Can I replace a faucet without replacing the sink?
Yes, as long as the new faucet fits the sink's existing holes. Check the number of holes and their spacing, or use a deck plate to cover unused ones.
Is a dripping faucet worth fixing?
Yes. A steady drip wastes a surprising amount of water over time, and the repair is often an inexpensive cartridge or washer.
Why is only the hot water low at my faucet?
Often debris or scale in the hot side of the cartridge, or a partly closed hot supply valve. If all hot water is low, look at the water heater and its valves.