How to Replace a Single-Handled Faucet with a Double-Handle

Choosing between a single-handled or double-handled faucet ultimately boils down to preference. While some prefer a single-handled faucet for use in a kitchen, others may favor the aesthetic and function of a two-handled variety for bathroom sinks. Fortunately, since most modern bathroom sinks come pre-drilled with holes for both single and double-handled fixtures, swapping from one type to the other isn’t that big of a deal.

To change out your faucet, follow these steps:

1. Gather supplies: The first step to changing your faucet will be to gather the necessary supplies. You will need:
   1. Adjustable wrench
   2. Pipe wrench
   3. Screwdriver
   4. Putty knife
   5. Plumber’s putty
   6. Lubricating oil
   7. Bucket
   8. Towels
   9. Flashlight
   10. Safety goggles
2. Shut off the water: Locate your home’s water shut-off valve and close it. Once the water is off, open the faucet to release any pressure and remaining water before you begin.
3. Detach the water supply lines: Remove the hot and cold water supply lines from your faucet using the adjustable wrench. Keep the bucket underneath to catch any water that may expel from the valves.
4. Find the clevis: Look to the back of the sink for a flat rod with holes punched through it. This rod, known as the clevis, connects to the drain’s popup lever via a pivot rod attached by a screw. Loosen this screw with the screwdriver to release the lever.
5. Remove the faucet: By now, there should be nothing left holding your faucet to the sink, allowing you to easily lift it away. Depending on your faucet’s model, you may need to use pliers or a pipe wrench remove nuts and spacers from the faucet.
6. Scrape putty and caulk: Use the putty knife to scrape any old caulk and putty from the top of the sink. Clean it with a non-abrasive cleaner dry with paper towels.
7. Apply putty: Roll a long, thin rope of putty slightly thinner than a pencil and apply it as close to the outside edge of the new faucet’s base as possible. This will help to prevent leaks.
8. Thread the lever and inlets: Re-thread the pop-up lever through the center hole in the sink and the inlets through the holes left and right of the center hole. Fasten with mounting nuts onto the shanks and tighten. Fasten the supply hoses from the original faucet onto the hot and cold inlet shanks and tighten.
9. Fasten the clevis: Slide the new pop-up lever under the screw on the clevis, but do not tighten. Lift the lever to ensure it properly seals the new drain and make adjustments until it raises and lowers as desired. Once set properly, tighten the clevis screw.
10. Turn on the water: You’re done! Turn the water shut-off valve back on and enjoy your new faucet!

Though seemingly simple at first glance, any plumbing project can have a large margin for error and can end up causing major headaches down the line if not completed properly. At Duran & Sons Universal Plumbing & Rooter, our highly trained San Fernando Valley Plumbers can handle any plumbing job from simple fixture replacements to full-scale plumbing overhauls. With 24/7 emergency services and a reputation for world-class service since 1986, we can provide the workmanship you need.