Common Faucets Problems

Most faucet problems start small—drips, low flow, stiff handles—and can waste water or damage cabinetry if ignored. These guides help you diagnose the cause quickly and choose the right fix.

All Faucets Problems 6

Dripping Faucet

low DIY

One drip per second wastes over 3,000 gallons a year. Usually a worn cartridge, washer, or seal -- straightforward DIY fix that stops the waste and the noise.

easy 30 - 60 minutes $5 - $30 for parts; $100 - $200 if hiring a plumber
Tools: Adjustable wrench Allen wrench set Phillips and flathead screwdrivers Replacement cartridge, washer, or O-rings Plumber's grease Penetrating oil (for stuck handles) Towel and drain cover

Leaking Under the Sink

high

Leak can come from supply lines, shutoff valves, faucet connections, drain, or P-trap. The cabinet hides it, so it often goes unnoticed until damage is underway. Finding the exact source is step one.

moderate 30 minutes - 2 hours $10 - $40 DIY; $150 - $300 with a plumber
Tools: Adjustable wrench Slip-joint pliers (for P-trap and drain connections) Basin wrench (for faucet mounting nuts in tight spaces) Replacement braided stainless steel supply lines Slip-joint washers and P-trap kit (PVC) Plumber's tape (for threaded connections) Plumber's putty or silicone sealant Flashlight Bucket and towels

Loose Handle or Spout

low DIY

Handle wobbles, spins, or feels loose? Spout rotates when it should not? Almost always a loose set screw, worn adapter, or deteriorated O-rings. Ten-minute fix, often costs nothing.

easy 10 - 20 minutes $0 - $10 for replacement screws or O-rings
Tools: Allen wrench set (hex key set, both SAE and metric) Adjustable wrench Basin wrench (for under-sink mounting nut access) Flathead screwdriver (for prying decorative caps) Replacement O-rings (for spout, matched to faucet brand) Plumber's grease (for O-ring installation) Thread-locking compound / blue Loctite (optional, for set screws)

Low Water Pressure

medium

Could be a clogged aerator or partially closed valve (five-minute fix), or a failing PRV, corroded pipes, or municipal issue. First step: is it one fixture, one area, or the whole house?

easy 15 - 45 minutes $0 - $15 DIY; $100 - $250 with a plumber; $200 - $500 for PRV replacement
Tools: Water pressure gauge (threads onto any hose bib) Pliers or adjustable wrench (for aerator removal) White vinegar (for soaking mineral deposits) Old toothbrush (for scrubbing aerator screens) Screwdriver and Allen wrench set (for cartridge access) Pipe tape and replacement aerators

Noisy Faucet (Whistling / Hammering)

medium

Whistling, screaming, chattering, or banging -- each sound has a specific cause. Whistling means restriction. Chattering means worn washer or cartridge. Banging when it shuts off is water hammer. Match the sound to the fix.

moderate 30 minutes - 2 hours $10 - $50 DIY; $150 - $350 with a plumber
Tools: Adjustable wrench or pliers (for aerator and supply line connections) Replacement aerator (matched to faucet brand, $3-8) Replacement cartridge or seat washers (brand-specific) Water hammer arrestors (mini size for under-sink installation) Water pressure gauge ($10-15, screw-on type for hose bib) Screwdriver and Allen wrench set (for faucet handle removal) Plumber's grease (for cartridge O-rings)

Sprayer Not Working

low DIY

No flow, weak flow, or will not switch modes? Clogged diverter valve, kinked hose, mineral buildup in the head, or cracked hose. Diverter is the most overlooked cause and the most common fix.

easy 20 - 45 minutes $5 - $25 for parts; $100 - $175 with a plumber
Tools: Adjustable wrench (for hose couplings and diverter access) White vinegar (for soaking spray head and diverter) Toothpick or needle (for clearing individual nozzle openings) Replacement diverter valve (brand-specific, $5-15) Replacement sprayer head (OEM or universal, $10-25) Replacement sprayer hose (if cracked or permanently kinked) Teflon tape (for threaded hose connections)