Field guide

Plumber Faucet Repair Pages That Name the Cartridge Before the Fixture Sale

October 20, 2026

Direct answer: A faucet repair page should start with the part that usually fails: the cartridge, stem, or seat inside the handle, not the whole fixture. A single drip at the spout, a handle that leaks at the base, and a faucet that will not shut off fully are three different faults with three different parts. Name the faucet type too, because a single handle cartridge, a two handle stem and seat, and a ceramic disc assembly do not repair the same way, and some older faucets are cheaper to replace than to hunt parts for.

The drip is doing arithmetic at 2 AM. Owners count drips the way they count anything that will not stop, and by morning they have decided the faucet is finished.

Most of the time it is not. A page that explains which small part failed, and how you tell, gets a repair call. A page that jumps straight to replacement gets a second opinion.

Where the leak sits tells you the part

A drip from the spout after shutoff points inside, to a worn cartridge, stem washer, or seat that no longer seals. Water at the base of the handle points to an O ring or packing around the stem. A leak under the sink is a supply or drain problem wearing a faucet costume, and the page should separate it before an owner orders parts.

Put that three way sort near the top. It takes four lines, and it is the difference between a page written by a plumber and a page written by a catalog.

Cartridge, stem, or disc is not a detail

Single handle faucets usually take a cartridge that lifts out once the water is off and the handle is removed, and the brand and model decide which cartridge fits. Two handle faucets may use compression stems with washers against a seat that can be worn or scored. Ceramic disc faucets rarely drip, and when they do the disc assembly or seals are the story.

Say plainly that you identify the model before quoting. Parts runs for the wrong cartridge are how a one hour repair becomes a two visit job, and owners have all lived that version through someone.

When replacement honestly wins

There is a point where repair is sentiment. A faucet with a corroded body, a pitted seat that will not clean up, obsolete parts, or finish damage around a leaking base will eat parts and still look tired. Say so, with the tests you use, not as a sales pivot.

The honest version also runs the other way. A quality faucet with a replaceable cartridge is worth repairing almost every time, and a page willing to say that earns the replacement jobs it does recommend.

What the visit should include

Shutoff valves that actually close, supply lines inspected while everything is open, aerator cleaned or replaced, and the repaired handle checked under pressure before the tools go away. Aerators foul with sediment after any work upstream, and skipping one leaves a weak stream that looks like a new fault.

Close on the check an owner can run that night: dry the spout, wait ten minutes, look again. A drip that returns within the hour was not fixed, and a page that invites the check is not worried about the result.

Frequently asked questions

Why does my faucet drip after I turn it off?

Usually a worn cartridge, stem washer, or valve seat that no longer seals fully. The location of the water tells you which: spout drips point inside the valve, leaks at the handle point to stem seals, and water under the sink is usually supply or drain, not the faucet valve.

Is it cheaper to repair or replace a dripping faucet?

Repair is usually cheaper when the faucet body is sound and parts are available, which covers most quality faucets. Replacement wins when the body is corroded, the seat is badly pitted, or parts are obsolete. A plumber should be able to say which case yours is after seeing the model.

Can I replace a faucet cartridge myself?

Many owners can, if the shutoffs close fully and the model is identified correctly. The common failures are buying the wrong cartridge, scoring the valve body on removal, and discovering a shutoff that will not close. If any of those are in play, the visit is cheaper than the lesson.

Why is my faucet stream weak after a repair?

Sediment loosened during the work often lodges in the aerator, the screen at the spout tip. Unscrew it, rinse it, and the stream usually returns. If it does not, the cartridge or a supply valve needs a second look.