Replacing a Kitchen or Bathroom Faucet
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Replacing a faucet is one of the most satisfying plumbing projects because the result is immediately visible. The hardest part is reaching the mounting nuts under the sink. A basin wrench makes that job possible in tight spaces where your hands and a regular wrench can't reach.
Cost Breakdown
Removal
The one tool you need that you probably don't own. Reaches up behind the sink to loosen mounting nuts.
Disconnects supply lines. An 8" wrench handles most faucet connections.
Under-sink work is dark. A headlamp frees both hands.
Installation
Seals the faucet base to the sink. Putty for most sinks, silicone for granite or marble.
Wrap supply line connections to prevent leaks. Three wraps clockwise.
Consumables and Supplies
These get used up during the project. Always buy these new.
- Teflon tape (pipe thread tape) Wrap all threaded connections
- Plumber's putty or silicone Seal around the faucet base
- Supply lines Most new faucets include them. If not, measure old ones for length.
Safety Gear
- Safety glasses (rust flakes from old connections)
Before You Buy Anything
Check if your neighbors already have the tools you need. Borrowing saves money, saves storage space, and keeps tools in use instead of collecting dust.
See how FriendsWithTools worksCommon Questions
Do I need to shut off the main water supply?
No. Close the hot and cold shut-off valves under the sink. If those valves don't work (common in older homes), then shut off the main. Test by turning on the faucet after closing the valves.
Can I replace a faucet myself if I have no plumbing experience?
Yes. Faucet replacement is connect-and-tighten work with no soldering or pipe cutting. If the shut-off valves work and the supply lines are in decent shape, it's a straightforward swap.