Faucet repair in Knoxville, TN usually comes down to one of three parts: a worn cartridge or washer causing the drip, a failed O-ring or supply line leaking under the sink, or a scaled aerator cutting the flow. Matching the exact cartridge to the faucet's brand and model is most of the job.
Updated October 2026
Rebuild or Replace? How We Decide on a Faucet
A good faucet from Moen, Delta or Kohler is built to be rebuilt; the makers sell cartridges and seals for years after a model leaves the shelf. If the body is sound and the finish is fine, a new cartridge makes it work like new for a fraction of a replacement.
Replacement wins when the body is cracked or pitted, the brand has no parts, or the valve is seized so hard that removing it would damage the sink. We tell you which it is before touching anything, and if replacing makes more sense we can put in a new faucet instead.
Faucet Problems You Can See or Hear
How a Faucet Repair Visit Runs
- 1
Identify the faucet
Brand, model and valve type matched before anything comes apart.
- 2
Shut off and drain
Stops closed, lines bled, sink drain covered so no part drops in.
- 3
Pull and inspect
Cartridge or stem out, seats and body checked for pitting.
- 4
Rebuild
New cartridge, washers, seats or O-rings; aerator cleaned.
- 5
Test
Handles cycled, spout and base checked, stops checked dry.
Dripping Faucet
A steady drip from the spout means water is getting past the shutoff inside the valve. On older two-handle compression faucets that's a rubber washer and a brass seat; the washer gets replaced, and the seat is dressed or swapped if it is pitted. On single-handle and quarter-turn faucets it is the cartridge, or the rubber seats and springs under a ball. A drip from the base of the spout or the handle is a different fault: an O-ring, and ignoring it lets water run down into the cabinet.
Faucet Cartridge Replacement
Cartridges are specific to brand and model, and the wrong one fits loosely or not at all. We identify the faucet by its handle, markings and valve before pulling anything, so the right part is in hand. Old cartridges often fight coming out after years of mineral buildup, and forcing them cracks the body, so we use the maker's puller where one exists. Once the new cartridge is in, we set the hot limit stop where the faucet has one and cycle both directions to confirm a clean, drip-free shutoff.
Low Flow at One Fixture
When one faucet runs weak and the rest are fine, the problem is almost always in that faucet. The aerator screen at the tip is the first stop, then the cartridge inlet screens, then the flexible supply lines, which can kink or collapse inside. A partly closed stop valve under the sink is another quiet culprit after someone has worked on the plumbing. If every fixture in the house has lost pressure, it's a different job, covered under low water pressure repair.
What Knoxville Water Does to a Faucet Over Time
Faucet Fixes You Can Try First
Plenty of faucet problems are safe to try yourself. Stop if a part will not come out without force.
| Job | Reasonable DIY? | Why |
|---|---|---|
| Cleaning the aerator | Yes | Unscrew, rinse the screen, soak scale in vinegar |
| Two-handle washer swap | Yes | Needs working stops and the right washer size |
| Swapping a cartridge | Sometimes | Easy when it slides out; a seized one can crack the body |
| Replacing supply lines | Yes | Hand-tight plus a quarter turn, no more |
What Decides the Cost of a Faucet Repair
Parts are usually modest; time is what varies.
Name-brand cartridges are easy to source; unmarked faucets take longer to match.
A cartridge seized by scale takes time to free without cracking the body.
A cramped vanity or a double-bowl sink slows the work.
Crusted stops or old lines are worth replacing while the cabinet is open.
A cracked body makes a new faucet cheaper than repeat repairs.
Faucet Repair Questions From Knoxville Homeowners
Is it worth fixing an old faucet?
If the body is sound and parts exist, yes. A cartridge costs far less than a new faucet and its installation.
Why does my faucet still drip after a new washer?
The brass seat underneath is probably pitted. A new washer against a rough seat keeps leaking until the seat is dressed or replaced.
Can you fix a leaking pull-down sprayer hose?
Yes. The spray hose and its quick-connect wear out before the faucet does, and most brands sell the hose separately.
Why is water collecting in the cabinet under my sink?
Usually a supply line, a loose stop connection or the faucet's O-rings. We dry everything and find the exact drip before replacing parts.
Do you repair tub and shower faucets too?
Yes. Those valves sit behind the wall and are covered under shower valve repair.
Can touchless kitchen faucets be repaired?
Most can. The solenoid, battery pack and sensor are replaceable parts on the major brands.
Other Kitchen & Bath Jobs We Handle
Kitchen Plumbing Remodel
Island sink drain and vent and pot filler line.
Kitchen Plumbing Remodel detailsIce Maker & Fridge Water Line
New refrigerator water line and leaking ice maker line.
More on ice maker & fridge water lineDrip keeping you up at night?
Call and we will match the part and fix it, or tell you honestly when it is time for a new faucet.