How to Replace a Toilet Flange

A toilet flange is a small yet important part of any plumbing system. This is the point at which the toilet connects to both the floor and the piping that runs into the sewer. An ill-fitting, damaged, or old toilet flange can cause lots of problems. Leaks can rot the floorboards in your home and cause structural damage, so a faulty toilet flange isn’t something you want to deal with.

If you’re looking to replace your toilet flange, you’ve come to the right place. Our simple DIY project is inexpensive and will take just a few minutes of your time.


  • Measuring tape
  • Sponge
  • Wrench
  • Multi-head screwdriver
  • Bolts, screws for attaching the flange
  • Old rag, newspapers

How to Replace a Toilet Flange in 15 Steps


Step 1. Turn the water supply off. This is the knob on the wall behind the toilet. Turning the knob clockwise will shut it off.

Step 2. Flush the toilet. Flush once or twice to drain the water. Use a sponge to soak up any remaining water in the tank or the bowl.

Step 3. Place the newspaper on the floor. This is where you will place the toilet once it’s removed.

Step 4. Remove the toilet. Remove the toilet by using your wrench to remove the bolts that hold the toilet down.

Step 5. Rock the toilet. Gently rock the toilet back and forth from the bowl. Don’t rock the toilet by holding the tank. Keep rocking until you break the seal.

Step 6. Lift the toilet. If you can do so safely, lift the toilet and set it on the newspaper. Toilets can weigh over 100 pounds, so be very careful when doing this. Get a friend or family member to help you.

Step 7. Clear the wax from the flange.

Step 8. Remove the screws attaching the flange to the floor.

Step 9. Clean the flange. Tuck an old rag into the sewage outflow pipe. This will help avoid foul odors.

Step 10. Fit the new flange over the pipe. Make sure there are no spaces between the flange and the floor.

Step 11. Lay the toilet on its side. Put the new wax ring on the round mouth.

Step 12. Replace the toilet. Line the holes on the toilet base with the bolts.

Step 13. Press down. This will seal the new flange with the wax ring.

Step 14. Replace the nuts.

Step 15. Reconnect the water supply.

Contact Sansone for Toilet Repair in South Florida

If you’d rather let the pros install your new toilet flange, or if you’re not sure if it’s time for a new one, Sansone is here to help. Our team of experienced plumbers can handle all of your plumbing needs. We provide quick and efficient plumbing repairs to get your home back to the comfortable oasis it should be.

Contact us today with any plumbing questions or schedule an appointment that’s convenient for you by phone or on our website.
Broward: (954) 800-2858
Palm Beach: (561) 701-8274
St. Lucie: (772) 879-5656

Schedule Service