A new faucet can improve function, reduce leaks, and update your space. This guide covers when faucet installation is needed, what affects project scope and price, and what to ask before hiring so you can plan with fewer surprises.
Faucet installation ranges from a simple like-for-like swap to a more involved upgrade that may include new supply lines, shutoff valves, or minor sink adjustments. Before you choose a faucet, match it to your sink or countertop hole pattern and spacing. Many sinks use 1, 3, or 4 holes, and the faucet, deck plate, and accessories must align.
Expect the plumber to shut off water, remove the old faucet, set and seal the new fixture, connect supply lines, and test for leaks. Photos of the current setup and clear access under the sink can help the job go smoothly. Ask whether any aging shutoff valves or corroded supply connections should be replaced during the visit.
Project cost and timing often depend on faucet type and features, the condition of existing plumbing, how hard it is to reach the work area, and whether unexpected issues like corrosion or stuck valves appear during removal.
Many faucet issues can be repaired cost-effectively, such as a clogged aerator, worn O-rings, or cartridge wear. Cleaning the aerator, replacing seals, or swapping a cartridge often restores normal flow and stops drips.
Consider replacement when the faucet has significant corrosion, repeated leaks or part failures, outdated or incompatible components, or visible wear that is hard to correct. If the faucet does not match your sink hole pattern or you want new features (pull-down sprayer, touchless, filtration), replacement is the clearer path.
Ask about experience with your faucet brand and type, what is included (removal, new supply lines, sealing materials), whether shutoff valves will be inspected or replaced if needed, warranty on labor, how they handle corroded fittings, and total estimated time and cost.
Like-for-like faucet swaps often do not require a permit, but rules vary. If the work involves moving plumbing lines, adding an outlet for a powered faucet, or other changes, ask your local building department or your plumber whether a permit or inspection may apply.