How to Easily Replace Your Kitchen Faucet

Reviewed by HomeMD.ai editorial team · Last updated: April 18, 2026

Understanding the Need for Replacement

Learning how to replace a kitchen faucet is essential when you notice persistent drips, stiff handle movement, or mineral buildup at the base. These issues often arise due to worn-out cartridges, corroded mounting hardware, or mineral deposits that damage seals. Replacing the faucet and supply lines is the most effective solution.

Tools and Materials Required

Before you begin, gather the necessary tools and materials. You'll need a RIDGID EZ Change Faucet Tool, a Husky basin wrench, and a small adjustable wrench. For materials, consider the Moen Adler single-handle kitchen faucet, BrassCraft braided stainless supply line, and Oatey Plumber’s Putty or the included gasket.

Step-by-Step Guide to Replacing Your Faucet

1. Shut off the hot and cold water under the sink. Turn the faucet handles to confirm the water stops, and the pressure drops to nothing.
2. Disconnect the supply lines from the shutoff valves. Keep a towel handy as a few ounces of water may dribble out.
3. Remove the old faucet by loosening the mounting nuts from below. Use a basin wrench for this task. If the nuts are corroded, apply penetrating oil and wait five minutes before trying again.
4. Clean the sink surface by scraping off old putty. Ensure the surface is smooth to prevent leaks from the new seal.
5. Install the new faucet according to its plate or gasket. Ensure it sits flat; if it rocks, debris might be trapped underneath.
6. Tighten the mounting hardware until snug. Avoid over-tightening, which can warp thin stainless sinks.
7. Attach the new supply lines, tightening them by hand and then giving a small nudge with a wrench. Be careful not to crush the rubber washers.
8. Turn on the water slowly. Listen for a smooth fill, and check for drips at each joint.
9. Flush the faucet for 1–2 minutes to clear debris before installing the aerator.

Cost Comparison: DIY vs. Professional

When to Call a Professional

Consider calling a professional if the shutoff valves won’t close or if the sink deck is cracked or flexing. These issues may require more extensive repairs beyond a simple faucet replacement.

FAQs

Do I need Teflon tape?
No, Teflon tape is not necessary for compression fittings. Using it can lead to over-tightening.

Why is there low flow after install?
The aerator might be clogged with debris. Remove it and rinse thoroughly.

3 holes vs 1 hole sink?
Use the included deck plate to cover any extra holes in your sink.

Old home with galvanized pipes?
Use BrassCraft compression adapters. Avoid threading directly into corroded steel without cleaning.

Replacing a kitchen faucet is a manageable task for most DIY enthusiasts. However, if you encounter issues with shutoff valves or suspect problems with related plumbing components like pipes or water heaters, it might be wise to consult a professional to ensure a safe and effective repair.