What if my toilet flange is too high?

When your toilet flange is too high, your toilet may leak water and rock back and forth when used. Both the leaking and the rocking can warp or break the floor. A leaking flange can also rot the subfloor and lead to the accumulation of mildew and mold.

How do you install a toilet flange that is too tall?

Quote from the video:
Quote from Youtube video: So what you're supposed to do with this is you're supposed to turn this around and you know tighten him and screw him up the the thing a little bit and to make him expand.

How do you remove cast iron toilet flange from concrete?

Quote from the video:
Quote from Youtube video: And then obviously a hammer. So this can be kind of tedious.

How high can a toilet flange be from the floor?

1/4 inch

With the toilet removed, you can see the toilet flange and measure its height above the floor. The optimum flange height to aim for is 1/4 inch above the finished floor. This typically allows for almost any type of wax ring to be used and still ensure a good seal.

How do you remove an old cast iron toilet flange?

Quote from the video:
Quote from Youtube video: So our first step is to drill out that lead all right i'm going to use my electric drill today a cordless would work fine i'm going to start with a quarter inch drill bit.

How do you install a toilet flange on concrete?


  1. Cut off the Old Flange and Obstructions. After you remove the toilet, you will probably find an existing toilet flange. …
  2. Scrape off Old Wax Ring. …
  3. Pick the Correct New Toilet Flange. …
  4. Place T-Bolts in New Toilet Flange. …
  5. Position Toilet Flange. …
  6. Drill Holes Into Concrete. …
  7. Screw Toilet Flange Onto Concrete.

Do I need a flange extender?

A toilet flange extender provides a raised flange so that the bottom of the toilet, the wax ring, and the flange align correctly. You need a flange extender when the existing flange is too low to hold the wax ring in the correct place to meet the bottom of the toilet drain.

How do you install a toilet when the flange is too low?

If you do have the problem of a too-short flange, there is a fairly easy solution. It’s called a toilet flange spacer, or a toilet flange extender. They are available in different sizes based on different needs; some even have rubber or silicone gaskets attached that get inserted into the existing flange.

How do I fix the gap between my toilet and floor?

Apply a thin, even bead of caulk around the base of the toilet to cover the gap along the floor and hide the shims. If necessary, smooth the caulk with your finger, wiping your finger clean frequently with a paper towel or a rag.

Does a toilet flange need to be above the floor?

The toilet flange needs to be on top of the finished floor. Meaning the bottom edge of the flange needs to be on the same plane as the toilet. So if your toilet sits on the tile, the flange needs to be on top of the tile too. The spacing of the toilet exit “horn” and sealing surface is designed for this height.

Does the toilet flange have to be level with the floor?

The toilet flange should not be flush with the floor, but it must be level to allow for a correct installation. A difference in height between one side of the flange and the other could compromise your toilet’s balance.

Can toilet flange be lower than floor?

In a typical toilet installation, the floor flange that sits inside the drain opening below the toilet should be positioned so that its bottom surface rests flush against the finished floor or no more than 1/4 inch above or below the floor.

Does toilet flange go inside or outside pipe?

This toilet flange is designed to glue on the inside of the pipe or expand inside the pipe. Leave the old toilet flange right in place and glue on the new one at the right elevation for the floor, if it’s plastic. The flange should be sitting with the bottom edge flush with the top of the floor.

Can you put a toilet flange inside a 3 inch pipe?

The standard toilet flange diameter is 4 inches but 3 inch toilet flange is also available. For 3 inch schedule 40 DWV pipe you can normally buy a 3 inch diameter toilet flange that easily fits inside the pipe. 4×3 toilet flange also fits the 3” pipe.

Is a toilet flange glued in?

In addition to being glued to the waste pipe, toilet flanges are typically attached to the bathroom subfloor with screws. Often, there are four screws that attach the flange to the subfloor.

Can you put a new toilet flange over an old one?

It’s a great option if your existing closet flange is broken or rusted. Due to its construction you can only use a toilet flange repair ring on PVC or ABS pipes. Option 3 is the easiest. It’s an a Push Tite gasketed closet flange.

Are there different size toilet flanges?

What Is The Standard Toilet Flange Size? Flanges come in just two standard sizes: 3 and 4 inches. You’re most likely to find 4×3 flanges when you look in a local hardware store.