How to Remove Toilet Flange that is Glued?

How to remove toilet flange that is glued? Heating up the glue and breaking its strength is a great way to remove the glued toilet flange.

If you find that your toilet flange connects the floor with glue and you can’t seem to remove it, don’t panic! You can easily remove it with our toilet flange removing guide that is glued without any damage. All you need is some plumbing tools and patience.

How to Remove Toilet Flange that is Glued?

Toilets have a flange at the bottom of the bowl to connect piping from the top of the toilet. They have been glued on by either being caulked or using an adhesive to bond with both pieces. These usually become a problem when you need to replace a section of the pipe due to corrosion, leaking waste lines, or something that breaks and needs replacement.

Essential tools require how to remove glued toilet flange

1. Toilet Caulk Gun: Quickly and easily applying a thick bead of caulk helps remove a glued toilet flange. A caulking gun speeds up the process tremendously and allows you to separate the glue joint in less than half the time using alternative methods such as screwdrivers etc.

2. Pry bar or large screwdriver: This will need to pry the pieces apart and can be found at your local hardware store.

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3. Hairdryer: It will take a lot of heat application evenly across both halves of the joint to allow them to separate.

4. Silicone caulk: Having an extra tube on hand will come in handy as you likely need it to reseal any holes created during a separation or any other areas that may start leaking later.

Preparing for removal

Before attempting to remove a glued toilet flange, make sure you have all of your tools ready, along with two old towels lined up as close as you can to the floor drain, as this will be an inevitable mess. It is also good to have a large plastic drop cloth ready and maybe even some newspaper if it’s not too dirty.

The towels and plastic will help you protect the area where you may need to scrap or sand before applying new caulk and repainting, so having them ready will save time and frustration later. Make any needed repairs such as putting in extra hose bibs, removing rusted nuts, rusty bolts, corroded flanges, etc.

You have to do it before attempting removal just in case something breaks during the process that needs replacing anyway. If your current flange has been leaking due to corrosion or faulty hardware, then it might be a good idea to replace the entire flange instead of trying to fix it, and it will ensure a permanent repair and stop any future leaks.

How to Remove a Toilet Flange That Has Been Glued?

How to Remove a Toilet Flange That Has Been Glued

After taking all the preparation you ready to find out how to remove toilet flange glued to outside of pipe?

  • Step-1: Apply some heat with the hairdryer. Apply it evenly across both halves of the joint.
  • Step-2: After heating, start prying the pieces apart using your pry bar or screwdriver. You must use even pressure and not just pull on one side, which could cause damage. Keep in mind, that this is a pretty straightforward but dirty job, so it’s best not to over-engineer the whole process. 
  • Step-3: After the separation of halves, you have to clean the remaining old caulk and ensure everything is perfect before applying new caulk and resealing.
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How Much Silicone Should You Use?

It depends on the repair work you need to do to get a proper seal again – typically, you will need at least one tube per flange plus some extra for scrapes or any other areas where things may start leaking later.

In most cases, when there is current leakage from multiple spots along the pipe, it would make more sense to remove the flange and replace it with a new one instead of fixing it.

It might seem like more work, but in the long run, it will be good because you’ll have a watertight seal and no more leaks.

Reinstalling the Toilet Flange

It’s time to replace the toilet flange after the removal of the old caulk. Apply some silicone around the edge of the flange, and then press it firmly into place. Make sure that it is level before continuing.

If any areas need additional silicone, use a caulking gun to apply it evenly. Once everything is dry, reattach the toilet and test for leaks.

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Frequently Asked Questions (FAQs)

Are toilet flanges glued on?

Yes, toilet flanges are glued to the bowl, and some manufacturers even make the glue replaceable for durability and ease of replacement when needed.

How do you open a sealed toilet flange?

You need a unique plumbing key to remove the old seal and install a new one. It’s not hard, but it can be messy if you’re not experienced.


Removing a toilet flange that has glue can be a real hassle. But you can do it with a bit of patience and some handy tools. Ensure that you know how to remove toilet flange that is glued and have everything ready before starting. Apply heat evenly to the joint before prying it apart using even pressure.

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