How to Fix a Leaky Faucet

A dripping tap may seem like a small problem, but it can quickly lead to bigger issues. Read on from the trusted experts at Roto-Rooter to learn how to fix a leaky faucet.         

According to the U.S. Geological Survey's drip calculator, if a leaky faucet drips at a rate of 10 drops per minute, you'll lose over 300 gallons of water a year. 

Don't let something as small as a leaky faucet make you spend more money than you need to. Instead, decide whether you can fix the problem yourself or if you need to call in a plumber. Here are a few quick ways to fix the problem:

What is the most common cause of a leaky faucet?

The most common cause of a leaky faucet is damaged or worn parts, including:

• Washers: The rings that press against the valve seat.
• O-rings: The small rubber tubes that connect the faucet handle to the valve.
• The valve seat: The part that the faucet valve or cartridge sits against. Valve seats corrode over time.
• Cartridges: Loose or worn cartridges can result in leaks. 

Other causes of facet leaks include high water pressure, broken pipes or fittings, improper installation, or hard water mineral accumulation. These are more complicated issues that are best resolved with professional help. 

Tools Needed

• Screwdrivers
• Wrench
• Pliers
• Replacement O-rings and/or washers
• Adjustable wrench or pliers
• Hex Wrench
• Faucet Repair Kit
• O-ring pick
• Washers

Can you fix a leaky faucet yourself?

If you’ve got some basic DIY skills, you can often complete a leaky faucet repair yourself. Follow these steps:

Step 1: Shut off the Water

We've all seen movies and heard horror stories where water from sinks sprays all over the room when a faucet is taken apart. This is probably one of the worst mistakes to make during leaky faucet repair, as now you have a big mess in addition to a leaking faucet.

Completely shut off the water supply from the faucet handles to the knobs controlling the main line. If your shut-off valves are stuck, Roto-Rooter offers helpful videos to assist you in addressing stuck valves.

Step 2: Replace or Fix Broken, Loose, or Worn Parts

Clean the aerator 

Dirty aerators can cause faucet leaks. Examine the aerator to see if it’s clogged with debris. Remove any particles on the aerator and check if the leak has resolved. Remember to firmly tighten the nozzle as it might be loose.

Replace the washer or seal

When you turn a faucet off, a washer sits against the faucet seat and cuts off the water flow. If, for any reason, that washer moves out of position, it can result in drips and leaks. Taking apart a faucet and repositioning the washer will often fix the leak. If the leak is well-established, however, you may need to replace the washer and seat altogether.

When you disassemble the faucet head, look at the washer and make sure that it fits perfectly back into its original position. If you find it has warped, take the entire head to your local Roto-Rooter or hardware store to find a new washer. Only a perfect match will work. When choosing a new washer, make sure that it is made from material that can handle both hot and cold water. If not, your new washer will warp again and cause the same problem.

Replacing O-Rings

Many faucets, including cartridge and compression models, have O-rings installed within the handles to create waterproof seals. When these O-rings become damaged or loose, the seal weakens, causing a leak near the handle. If you have a leaking handle, try replacing the O-ring first—just make sure you buy the right size.

Replacing Faucet Cartridges

Cartridge faucets can have one or two handles and are easily distinguishable by how they feel to operate; turning the handle or handles is smoother and easier than a compression or ball faucet. When cartridge faucets drip, it's often necessary to replace the entire cartridge valve. New cartridges cost about $10-15, depending on where you live, and they are relatively easy to install.

Step 4: Replace Your Faucet

If your leaky faucet problem persists after trying the quick fixes listed above, it may be time to purchase a new fixture altogether. Faucets experience significant wear and tear over time, especially ones in kitchens or bathrooms. If you decide to buy a new one, consider the many new options available to you, including hands-free faucets for the home.

Call a Plumbing Professional

Leaky faucets can sometimes prove too difficult to fix yourself and could indicate a larger issue with your plumbing. Don't hesitate to call Roto-Rooter. We'll send a professional and experienced plumber to take care of your faucet repair.