How to Replace Bathtub Faucet? [Easy Installation Guide]

Eileen Martin
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4 Steps to Give a New Look of Your Tub.

Most of us spend plenty of time in our bathroom, so it's always a good idea to upgrade it to make it more stylish and functional. Most of bathroom renovations mostly revolve around replacing the old fixtures and upgrade them to something modern and up-to-date.

It's quite simple and easy to replace a bathroom faucet especially if it's a single handle but make sure you turn-off the water supply before you start the removal process. The first step is to remove the handles by unscrewing it counterclockwise and unclamp it.

When the handle is removed, you will see a small hex-headed screw on the housing that secures the escutcheon, which is the decorative plate on the end of the spout. Take a screwdriver and remove it. Then, unscrew the escutcheon and hud nut using your plumber's wrench and remove them from the spout. After that, you have to disconnect the flexible hose.

The next step is to disconnect the flex tube and the escutcheon that connects the lever with the spout. Remove every set screw on the spout. After that, place a bucket underneath the overflow (crotch). Take a plumber's wrench and unscrew the overflow nipple.

Step 1: Remove the Old Faucet

Most bathtub faucets come with (2) or (3) nuts that you'll need to remove. (The number of nuts will vary depending on the product.)

Use a wrench to remove them. Wrap a towel around the neck of the faucet to catch any excess water that may drip out.

Next, to get to the faucet's mounting nuts, you may need to remove the spout. To do so, use a wrench to loosen the packing nut, which is often located on the underside of the faucet.

This is a little challenging since the spout can get in the way of the wrench. You may have to go in from under the countertop, which means you'll need to crawl under your kitchen sink.

As you're loosening the packing nut, hold the spout with your fingers to prevent it from turning counterclockwise.

Once the packing nut is loose, the spout will come off easily.

  • Water won't flow freely from the faucet until you remove the aerator. You need to keep the aerator out when you're trying to remove the spout since water will just spray everywhere if you don't.
  • If you're replacing the faucet using the same brand, and the previous faucet has a washer, make sure to transfer the washer from the old to the new faucet.

Step 2: Purchase the New Faucet

Since the source of the leak is the broken washer or seal, both of which should be replaced, it makes sense to replace the whole assembly. Most bathtub faucets and shower valves contain the tub spout, cartridge and flange in one unit, where the flange is the base where the valve sits and either screws into the shower wall or is mounted with two small metal or plastic flanges. While a little more expensive than replacing just the cartridge, it’s usually the best way to treat the problem for the least amount of effort.

Step 3: Installing the Spout Nipple

To complete this step, you will need:

  • screw driver
  • a plastic scrap

Once you have the new faucet secured in place, you can move on to installing the spout nipple.

The spout may have come with two pieces, one being the actual spout, and the other a flashing, or a gasket.

Simply slide the spout over the end of the pipe, and then slide the flashing onto the outside of the pipe.

The spout is usually just a short extension of the pipe that screws into the pipe.

In order to secure the spout to the pipe, you will need to tighten the screw.

However, before tightening the screw, you must first slide the gasket over the end of the pipe, and then into the end of the spout.

Only then can you tighten the screw.

Step 4: Installing the Faucet

The next step is to install the faucet and base. You will need a wrench and an adjustable wrench for this job, as well as the new gasket. Starting with the supply and drain lines, attach the hoses to the drain line as well as the supply lines to the faucet itself.

The hoses will likely have slip ends that can simply be positioned over the fittings on the lines. Don’t forget to remove the tape and position them at the appropriate angle.

Once you have the hoses properly attached to the faucet, you can install the top of the faucet. The hoses should then be attached to the hot and cold valves on the new faucet, which can be done using an adjustable wrench.

After that, you will need to place the faucet base over the drain line. The base will connect to the faucet and you can simply turn clockwise to lock it into place. The new gasket will then be placed over the drain line so that it forms a tight seal.

Once you have all the parts properly connected and joined together, you will need to add the remaining components of the faucet which includes the aerator and stopper assembly. After that, you will need to adjust the handles and both the hot and cold valves to ensure a leak-free seal.