How to Raise a Toilet Flange? – Easy DIY Instructions

Written by

Paulk Webb


Freddie J. Hagopian

Saveourwaterrebates is reader-supported. When you buy via our links, we may earn a commission at no cost to you. Learn more

How to Raise a Toilet Flange

A toilet flange is a circular piece made of metal or plastic that connects your toilet to the floor and the drainpipe. It ensures the toilet is securely mounted and prevents leaks.

Is your toilet flange too low? That might be why your toilet is unstable and leaking. Raising the flange will fix the problem and adapt to different flooring heights, saving you from replacing the toilet.

Save yourself the cost of calling a plumber and learn how to raise a toilet flange here. It’s an easy process that most DIYers can do!

Guide to Raise a Toilet Flange wwith a Toilet Flange Extension Ring


If you are raising a toilet flange for a tile floor, there are a few things you need to keep in mind.

  • Ensure the flange is raised to the correct height, ideally 1/4 inch above the finished floor.
  • Use a flange designed for tile floors
  • Use a flexible sealant for tile floors to avoid cracks or breaks when wet.

Are you ready? Follow this step-by-step guide.

Step 1: Prepare


  • Adjustable wrench or pliers
  • Putty knife or scraper
  • Wire brush
  • Toilet flange extension ring
  • Silicone caulk
  • Screws or nails
  • New wax ring

Step 2: Remove the toilet


Unscrew the nuts from the bolts that secure the toilet to the flange. Lift the toilet straight up and off the flange carefully. Use a putty knife or scraper to take off the old wax ring.

Before raising the toilet flange, it’s essential to inspect the current flange for any signs of damage or wear.

  • If you notice that your existing flange is damaged or corroded, you might need to do a flange repair.
  • If the flange is in good condition, use a wire brush to clean it. This ensures any dirt or debris that might hinder the proper sealing of the extension ring is removed.

Step 3: Get your toilet flange extension ring


Measure the distance from the floor to the top of the flange. This will tell you how much the extension ring needs to be raised.

Choose a toilet flange extension ring that is the correct height. Extension rings are available in a variety of heights, so you should be able to find one that is the right size for your needs.

A Set-Rite toilet flange extender is a good choice when you need to raise the flange by a small amount (like 1/4 inch to 1 inch) without damaging the floor.

Step 4: Secure the extension ring


Place the extension ring over the flange. The extension ring should be centered over the flange and should extend beyond the flange on all sides.

A level toilet flange is important because it helps to ensure that the toilet is installed properly and that there are no leaks.

Apply silicone caulk along the bottom lip of the flange extender. Then, place the extender over the flange, aligning the screw holes.

Use screws or nails to secure the extension ring to the tile floor.

Step 5:  Place the new wax ring


Apply the new wax ring to the bottom of the toilet. Make sure it’s the right size to establish a watertight seal between the flange and the toilet

Follow the instructions that came with your wax ring to apply it properly.

Step 6:  Reinstall the toilet


Carefully place the toilet over the flange and make sure the bolts go through the holes on the bottom.  Gently press the toilet down to compress the wax ring and create a seal. Tighten the nuts onto the bolts.

Flush the toilet a few times and check for leaks around the base. If you notice any leaks, slightly tighten the mounting nuts or readjust the toilet.

Frequently Asked Questions

What should I do if my toilet flange is too high?

If your toilet flange is too high, you need to fix it promptly to avoid discomfort and potential damage.

You can choose from three easy options: filling the gap with plywood, using grout, or using cement, depending on your preference and the severity of the issue.

Remember, it’s best to seek professional help to avoid costly mistakes if you’re unsure.

How much is a toilet flange extension ring?

On average, a basic toilet flange extension ring may range from $10-$30, but it can vary depending on the brand, material, and where you purchase it.

You should check with local hardware stores, plumbing supply shops, or online retailers to find the best toilet flange extension ring that suits your needs and budget.


If you follow these steps on how to raise a toilet flange, you can fix it at the right height. This will make sure your toilet is securely attached and won’t leak.

It’s a simple DIY process you can definitely try!

Take your time and follow the instructions to get the best results when raising the toilet flange. If you face any difficulties, it’s a good idea to seek help from a professional plumber trained in installing and repairing plumbing fixtures.

5/5 - (1 vote)