How to Replace a Toilet Seal

toilet seal replacement

One of the most important components of the toilet is the seal. The small but mighty seal is a wax ring that sits on the floor and stops both water and foul odors from leaking into your home.

While the average toilet seal can last between 20 and 30 years, sometimes it needs to be replaced sooner. Fortunately, toilet seal replacement is an easy home project you can complete in just a few minutes with a little plumbing know-how.

If you’re looking for information on toilet seal replacement, you’ve come to the right place.

How to Replace a Toilet Seal in 15 Steps

Toilet seal replacement involves removing the old toilet seal and replacing it with a new one. Sounds easy right? Here’s how:


  • Pliers
  • Sponge
  • New toilet seal (available at your local hardware store)


Remove the Old Toilet Seal

Step 1. Turn off the water supply to your toilet. You may need a pair of pliers if the valve is stubborn.

Step 2. Flush the toilet to remove the water from the tank. You may need to do this more than once to get all of the water out. We recommend using a sponge to soak up any water that isn’t removed by flushing.

Step 3. Remove the caps from the nuts.

Step 4. Remove the nuts. Again, grab those pliers if the nuts are stubborn!

Step 5. Disconnect the water supply line. This is a narrow pipe located behind the toilet. Rotate the nut that holds it in place counterclockwise.

Step 6. Gently rock the toilet back and forth. This will break the seal along with the caulking. Be very careful with this step and be sure to grip the toilet bowl and not the toilet tank!

Step 7. Remove the seal. Once the seal is broken, remove the seal.

Install the New Toilet Seal

Step 8. Place the new toilet seal over the flange on the floor.

Step 9. Gently lift the toilet, placing it over the flange.

Step 10. Sit on the toilet to help seal it.

Step 11. Replace the nuts.

Step 12. Reconnect the water supply line.

Step 13. Turn the water supply back on and allow the toilet tank to fill with water.

Step 14. Flush the toilet. Once the toilet tank is full, flush the toilet and check for proper function.

Step 15. Apply new caulking as needed.

Toilet Seal Replacement and Plumbing Services in Clearwater, Florida

Sometimes it’s easier to leave the plumbing projects to the pros. When you’re in need of plumbing repair or installation services, Climate Design is here to help. We offer an array of quality plumbing services to the Clearwater area and beyond. Contact us today for more information or to schedule an appointment.

Call (888) 572-7245 to Schedule Your Appointment