How To Tighten A Loose Moen Kitchen Faucet Base

How To Tighten A Loose Moen Kitchen Faucet Base

The Moen brand is well known for quality and durable faucets. However, one of the most typical causes of leakages with the Moen faucet is the loose base. In this post, we explain, in simple terms, how to tighten a loose Moen kitchen faucet base. The steps are easy, and just about anyone with basic DIY skills can do it.

How do you tighten a loose Moen kitchen faucet base? Gather the tools you need, including a screwdriver and adjustable wrench, turn off your water supply, and follow a few easy and straightforward steps to accomplish the task.

Let’s get to it. Read on to learn more about how to tighten a loose Moen kitchen faucet base.

Tools You Will Need

Source: kurhan

You don’t need too many tools to complete this DIY task. You can get it over with using:

  • A screwdriver
  • An adjustable basin wrench
  • 3/32 size Allen wrench

Steps To Tighten Your Moen Kitchen Faucet Base

The process of tightening a Moen kitchen faucet base involves unscrewing the faucet handle to reveal the screws that hold down the bottom. Next, you want to tighten the screws.

Here are the exact steps to do this quick home-repair task:

Step 1: Switch off the water supply

This is the first step to prevent unwanted water flow. As expected, you should be able to switch off the water valve just behind the sink. If you can’t find it, temporarily switch off the main water supply valve to the house.

Step 2: Clear the kitchen sink

You need to ensure the sink is clear of anything that may constitute an obstruction. Also, remember to cover the holes in the sink to prevent screws from falling into them. Additionally, you may want to remove every item from under the sink.

Step 3: Release any pressure left in the faucet

Pressure in the faucet will likely make the job a bit more difficult, so you want to release it. To do this, simply turn on the water supply valves. Keep in mind that the water supply must be disconnected before following this step.

Step 4: Locate the nuts connecting the base

Now, turn your attention to the base of the Moen kitchen faucet. Locate the nut at the base and use an adjustable basin wrench or Allen wrench to grab it.

Step 5: Tighten the nuts

Use the adjustable wrench or Allen wrench to tighten the faucet mounting nuts with mild pressure until they are firm. You should tighten the faucet nut by turning it in the clockwise direction using the basin wrench.

You may need to bend to get the job done, especially if your sink base is too low or not easy to access.

Step 6: Reconnect the water supply

Once you are done, check to ensure that the base is now as tight as it should be before you reconnect the water supply.

If everything checks out, go ahead and reconnect the water valves.

The entire procedure is quick and straightforward. With the right tools and the detailed steps above, it shouldn’t take more than five to ten minutes to get the job done. The procedure is similar for all models of Moen faucets and many other brands as well.

Causes Of A Loose Faucet Base

Source: Tom K Photo

A loose Moen faucet base is not a sign of a major problem. As long as you use your faucet frequently, it is normal for the base to become loose over time. Thankfully, getting it fixed isn’t too difficult, as we have shown in the steps above.

While a loose base is not peculiar to Moen faucets, it is important to know the common causes and how to prevent them. This will ensure that your pipes don’t get compromised, leading to leaks and water loss.

The primary causes of loose faucet bases include:

  • Loose screws: The screws under the sink that keep the base in place may lose their grip and loosen over time. When this happens, the base is no longer as firmly in place as it should be.
  • Loose base: Because the faucet handle is attached to the base, frequent movement of the handles may also loosen the base, resulting in tiny spaces that cause leaks.
  • Wear and tear: This refers to the general wear and tear common with drains, regardless of the model.

The easiest and most apparent way to prevent a loose kitchen faucet base is to inspect it frequently for signs of slackness. Tighten the base of your Moen faucet once you notice it is not as tight as it should be.

However, you don’t want to tamper with the faucet too frequently because you may inadvertently damage other components.


Knowing how to tighten a loose Moen kitchen faucet base can come in handy, considering the popularity of the brand’s faucet in many homes. If you have a Moen faucet in your kitchen or know someone who does, now you can get it fixed without breaking a sweat.

While calling a plumber to rectify a loose faucet base may not be a bad idea, fixing it yourself is not likely to hurt and can definitely save you some money.

Frequently Asked Questions

How do you tighten a Moen kitchen faucet under the sink?

When tightening a Moen kitchen faucet under the sink, you can use a basin wrench to tighten the nuts. The basin wrench has jaws that grab onto the kitchen faucet nut and a long handle so you can reach it easily from underneath the sink. When using the basin wrench, rotate the handle clockwise. The jaws will automatically tighten.

Why does my Moen kitchen faucet keep coming loose?

One of the more common reasons for a Moen kitchen faucet loosening is when the nuts are not properly tightened. A nut is used to hold the faucet head and faucet base together. When the nut is not tight, it can cause the base to become loose.

How do you tighten the loose faucet handle of a Moen kitchen faucet?

If you notice the kitchen faucet handle is loose after tightening the sink faucet base, you can tighten a loose Moen single handle kitchen faucet by tightening the screws with a wrench, turning clockwise a few times.

Which way do you turn a hex wrench to tighten a single kitchen faucet?

When using a hex screw to tighten a single kitchen faucet, insert the hex wrench into the opening to engage the set screw. You then need to turn clockwise a quarter turn to loosen the screw. Once the screw has been loosened, you can pull the handle away from the body.