How to Install a Toilet Wax Ring and Flange Seal in Cheltenham, PA
To install a toilet wax ring, shut off the water, drain the tank, unbolt and lift the toilet, scrape off the old wax, check that the flange is sound, press a new ring onto the flange and lower the toilet straight down. Tighten the bolts a little at a time, never all at once. Most of the work is the lift and the flange check.
A wax ring is a cheap part and a messy job. A broken flange, a rotted floor or a cast iron stub in an older home turns it into a plumber visit, and this guide shows you how to tell the difference before you start.
Signs the wax ring has failed
- Water around the base of the toilet after a flush, or after someone sits down.
- A toilet that rocks or shifts when you push it side to side.
- A sewage smell from the bathroom that does not go away after cleaning.
- Staining on the ceiling of the room below the toilet.
- A floor that is soft, spongy or discolored near the base.
A wax ring seals the horn on the bottom of the toilet to the flange on the floor. If it fails, water and sewer gas leak at the joint. If the floor is soft, stop and call a plumber, because the repair may include the subfloor.
Tools and parts you need
- A new wax ring or a waxless seal sized for your toilet and drain.
- New closet bolts and nuts if the old ones are corroded.
- An adjustable wrench, a putty knife and a bucket.
- Rags, a sponge, rubber gloves and a few plastic bags for the old wax.
- A flange extender or spacer ring if the flange sits below the floor.
- A helper, because a toilet is heavy and awkward to lift alone.
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Wax ring, extra thick or waxless?
| Seal type | Best for | Watch out for |
|---|---|---|
| Standard wax ring | Flange level with the finished floor | Not enough height if the flange is low |
| Extra thick wax ring | Flange up to about an inch below the floor | Can compress unevenly if the toilet is bumped |
| Wax with plastic horn | Easier alignment on standard flanges | Plastic horn can reduce the seal on a damaged flange |
| Waxless rubber seal | Repeated removal or a slightly off flange | Needs a clean, round flange to seal |
| Flange extender plus ring | Flange recessed below a new floor | The extender needs solid screws into the floor |
Measure from the top of the flange to the finished floor. If the flange is level or slightly above the floor, a standard ring is correct. If it sits below the floor, use an extender, not just a thicker ring.
How to replace the wax ring
- Close the shutoff valve behind the toilet, flush, and sponge the remaining water out of the tank and bowl.
- Disconnect the supply line and remove the nuts from the closet bolts at the base.
- Rock the toilet gently to break the seal, lift it straight up with a helper and set it on a towel or cardboard.
- Scrape all old wax from the flange and the toilet horn, and stuff a rag into the drain to block sewer gas.
- Inspect the flange for cracks, rust or loose screws, and repair or replace it before going on.
- Set the new ring on the flange or on the toilet horn, according to the product instructions, and place the closet bolts.
- Lower the toilet straight down onto the bolts without twisting, then press down firmly.
- Tighten the nuts a little at a time, alternating sides, until the toilet is snug and level.
- Reconnect the supply, open the valve, flush several times and check for leaks at the base.
Do not overtighten the nuts. Porcelain cracks under uneven pressure, and a cracked base is a new toilet. Snug and level beats tight and tilted.
Check the flange before you reseat
The flange is the ring that anchors the toilet to the drain. If it is cracked, corroded or loose, a new wax ring will fail again. Plastic flanges can split. Older cast iron flanges rust and lose their ears where the bolts go.
Repair rings and stainless steel plates can restore a damaged plastic or cast iron flange. If the flange is broken from the pipe, or the drain below it is damaged, the job is a repair of the drain and the plumber needs to see it. Our toilet repair page covers what we check, and a larger bathroom change falls under plumbing installation.
What drives the cost of professional work
- Flange conditionA sound flange is a quick reset. A broken one needs repair parts and more labor.
- Floor conditionA soft subfloor must be repaired before the toilet is set.
- Toilet typeOlder, heavy one-piece toilets take more time and a second person.
- AccessA tight bathroom or a second-floor location affects handling time.
- Extra repairsA worn fill valve or supply line can be replaced in the same visit.
A clear price is given before the work starts. Call (215) 714-6692 to describe what you see. Slow seepage from a failed ring is generally treated as maintenance, while a sudden overflow that damages floors may fall under your policy.
Cheltenham local note: older homes and flanges
Much of the housing stock in Cheltenham Township has stayed largely unchanged since the early twentieth century. In many older bathrooms the flange is original cast iron, set into a drain stack that has never been replaced, and the floor around it has been tiled over more than once. Check the flange height before buying a ring.
Plumbing and drainage work in the township falls under Chapter 209, which requires licensing, and you can call 215-887-1000 to ask whether a plumber is registered. Permit rules vary, so ask the Cheltenham Township building department at that number before you replace more than a ring.
Aqua Pennsylvania serves water in the township and now operates the sewer system, so a toilet that leaks sewer gas is worth fixing quickly. Homeowners in Glenside and Wyncote with original bathrooms should assume the flange needs inspection.
Frequently asked questions
Water at the base, a rocking toilet or a lingering sewage smell are the main signs.
No. Once the toilet is lifted, the wax is compressed and will not seal again. Always use a new ring.
A straightforward swap is usually under an hour for a professional. A damaged flange or floor adds time.
It is easier to reseat and forgiving of small flange issues, but it needs a clean, round flange. Wax is fine for most standard installs.
The flange may be too low, the floor uneven or the bolts loose. Shims or an extender may be needed, so call a plumber.
Permit rules vary, so ask the Cheltenham Township building department at 215-887-1000 or Abington Township at 267-536-1000 for the Abington side.
Dispatch is open 24/7 at (215) 714-6692. Close the supply valve behind the toilet while you wait.
Plumbing emergency in Cheltenham?
Call (215) 714-6692 now. A live dispatcher answers 24 hours a day.