Installing a new kitchen sink faucet doesn’t have to be as scary as it sounds. If you’ve got the right tools and a bit of patience, you can do it yourself, no problem. I’m going to walk you through it step-by-step, so you can get your new faucet up and running like a pro. Whether your old faucet is leaking or you just want to upgrade, this guide is for you.
If you’d rather not deal with the mess, don’t hesitate to reach out to our Plumbers in Boise, Plumbers in Nampa or Plumbers in Meridian—we’ll take care of it for you!

Why You Might Want a New Faucet
Let’s talk about why it might be time for a new faucet:
- Leaks: If your faucet is dripping all the time, it’s wasting water and money. A new faucet solves that problem right away.
- Looks: A shiny new faucet can really change the vibe of your kitchen. You’d be surprised what a fresh faucet can do.
- Features: New faucets often come with cool features like built-in sprayers or touchless sensors, which can make your life way easier.
So, if any of that sounds good, let’s dive into installing your new faucet!
1. Grab Your Tools
Before you start, make sure you’ve got the tools you need. Here’s a list to make sure you’re ready:
- Adjustable wrench
- Basin wrench (this tool is a game-changer)
- Screwdrivers (flathead and Phillips)
- Plumber’s tape (to stop leaks)
- Bucket (to catch any water)
- Towels or rags (to clean up any spills)
- Flashlight (if it’s a little dark under the sink)
Having these things on hand will make your job way easier. Don’t skip this step!

2. Turn Off the Water
Alright, the first thing you want to do is turn off the water. Head under the sink and find the shut-off valves. Twist them clockwise to shut off the water.
Pro Tip: If you can’t find the shut-off valves, just turn off the main water supply to the house. Then, turn on the faucet for a few seconds to let any leftover water drain out.
3. Remove the Old Faucet
Now comes the fun part—getting rid of the old faucet. Here’s how:
- Disconnect the water supply lines: Use your adjustable wrench to disconnect the lines that bring water to the faucet.
- Take off the mounting nuts: You’ll find these nuts under the sink. Use your basin wrench (or a screwdriver) to loosen them and remove them.
- Take the faucet out: After the nuts are off, you should be able to pull the faucet out from the top.
Don’t forget to catch any leftover water in your bucket.
4. Clean Up the Area
With the old faucet out, it’s time to clean up. Wipe down the sink area to remove any old debris, putty, or caulk. A clean surface helps your new faucet seal properly.
5. Prep the New Faucet
Before you start putting in the new faucet, take a look at the instructions to make sure it’s all set up correctly. Some faucets need a little assembly, so make sure everything is ready to go. Apply plumber’s tape to the faucet’s threads to make sure there are no leaks.
Pro Tip: Double-check the faucet parts to make sure nothing’s broken or missing before you start.
6. Install the New Faucet
Now it’s time to put in the new faucet. Here’s what to do:
- Place the faucet in the sink: Line it up with the holes and drop it in. Make sure it sits evenly.
- Secure it with the mounting nuts: Go under the sink and tighten the nuts to hold the faucet in place. Don’t go overboard—just get them snug.
- Check the alignment: Make sure the faucet is straight before you tighten it all the way.

7. Connect the Water Supply Lines
Next, reconnect the water lines. Here’s how:
- Attach the supply lines to the faucet’s inlets with your adjustable wrench.
- Tighten them until they’re secure, but don’t overtighten.
Pro Tip: Make sure the hot water line goes to the hot side, and the cold line goes to the cold side. This sounds simple, but it saves a lot of frustration!
8. Turn the Water Back On and Test
Now it’s time to turn the water back on. Slowly open the shut-off valves and check for leaks. Turn the faucet on and see if both hot and cold water come out smoothly.
If you spot any leaks, tighten up the connections. If everything’s dry and working well, congratulations—you’ve installed your faucet like a pro!
9. Clean Up Your Workspace
Once everything is working, clean up your area. Wipe down the faucet and surrounding areas to remove any fingerprints or water spots. Dispose of any packaging and put your tools away.
Pro Tip: It’s a good idea to keep a rag nearby for easy future clean-ups.
Conclusion
And that’s it! Installing a new kitchen sink faucet doesn’t have to be complicated. With the right tools and a little time, you can get it done yourself and save some money. Whether you’re upgrading your kitchen or fixing a leaky faucet, this guide should help you every step of the way.
Final Thoughts
DIY projects can be fun and rewarding, but sometimes it’s best to call in the pros. If you need help with your kitchen sink faucet installation or anything else plumbing-related, don’t hesitate to reach out to MyBoisePlumbers. We’re just a call away!