How to Install a Toilet Flange in 8 Easy Steps

Installing a new toilet or replacing a damaged toilet flange doesn’t have to be stressful. You might be upgrading your bathroom. You could also be dealing with a leaking base. Learning how to install a toilet flange can save you time. It can also save you money and future headaches.

In this guide, the pros at Wade’s Plumbing & Septic help you. They walk you through the essential steps to a successful toilet flange installation. We’ll also cover common issues, must-have tools, and when to call a professional for help.

What Is a Toilet Flange?

A toilet flange (also called a closet flange) connects your toilet to the drainpipe and secures it to the floor. A proper flange ensures a tight seal, preventing water leaks and foul sewer gas odors from entering your home.

Step-by-Step Guide to Replace a Toilet Flange

1. Gather the Right Tools and Materials

Before you begin, make sure you have the following on hand:

• New toilet flange
• Adjustable wrench
• Wax ring or bowl seal
• Flathead and Phillips screwdrivers
• Closet bolts (T-bolts)
• Hammer
• Chisel or pry bar
• Putty knife
• Old rags or towels
• Hacksaw (for rusty bolts)
• PVC cement (for PVC systems)
• Adhesive remover (if needed)
• Dremel tool (for cutting stuck flanges)

✅ Tip: If you’re in Santa Cruz County and something goes wrong during installation, call Wade’s Plumbing & Septic. We’re available for emergency repairs.

2. Prepare the Work Area

• Turn off the water supply to the toilet.
• Flush the toilet and soak up remaining water with rags.
• Disconnect the water supply line.
• Remove bolts from the tank and carefully lift it off.
• Unscrew the bolts holding the toilet base to the floor.
• Gently rock the toilet to break the wax seal and lift the bowl straight up.
• Set it aside on a towel or soft surface.

3. Remove the Old Wax Ring and Clean the Area

• Scrape away the wax residue from both the base of the toilet and the floor flange using a putty knife.
• Inspect the flange and drain pipe for cracks or damage.
• Plug the pipe with a rag to block sewer gases.

4. Take Out the Old Toilet Flange

• Unscrew the old flange from the floor.
• If it’s stuck, try using a wrench or apply adhesive remover.
• Use a hammer and chisel or a Dremel tool if necessary.
• Clear debris and prepare the area for the new flange.

5. Insert the T-Bolts into the New Flange

• Place the T-bolts into the slots of the new flange.
• Ensure the bolts are aligned equally from the back wall so the toilet sits straight.

6. Position the New Toilet Flange

• Press the flange into the drain opening.
• The top of the flange should sit ¼ inch above the finished floor—not flush.
• Ensure the bolts are straight and evenly spaced.

7. Secure the Flange to the Floor

• Use screws or bolts to attach the flange securely.
• Make sure the fasteners don’t protrude above the top of the flange.

8. Install the Wax Ring and Reconnect the Toilet

• Press the wax ring onto the flange.
• Carefully lower the toilet bowl onto the bolts.
• Push down firmly to compress the seal.
• Tighten the nuts evenly on both sides.
• Reconnect the water supply and tank.
• Turn on the water and test for leaks.

When to Call a Professional Plumber

Even the most confident DIYers can run into unexpected issues. If you notice cracks, leaks, or anything that looks unusual—play it safe and give us a call.

We provide expert toilet flange installation and toilet repairs throughout:

• Santa Cruz
• Capitola
• Soquel
• Aptos
• Watsonville
• Surrounding areas

📞 Call now: (831) 225-4344
We don’t offer online booking—just fast, friendly phone service!

Toilet Flange FAQs

Should a toilet flange sit on top of the finished floor?
Yes, the flange should be installed approximately ¼ inch above the finished flooring to avoid leaks.

Do I put the wax ring on the flange or the toilet?
Always install the wax ring on the flange before setting the toilet.

Can I install a toilet flange myself?
Yes, if the pipe and subfloor are in good condition and you have the proper tools. Otherwise, contact a licensed plumber.

What if the old flange is glued in?
A Dremel tool can help you safely cut out glued or stuck flanges. Use caution to avoid damaging the pipe.

Need Help With Toilet Repairs?

Wade’s Plumbing & Septic is your local go-to for toilet repairs, toilet installation, and expert toilet flange replacement. If you’re unsure about the project or just want it done right the first time, give us a call.

📞 (831) 225-4344
We’re here to help—fast, reliable, and local plumbing service in Santa Cruz County!