Most toilet repair jobs come down to a few inexpensive parts: a flapper, a fill valve or a wax ring. The trick is figuring out which one. A toilet that runs, leaks or rocks is also quietly costing you money or damaging your floor, so it is worth fixing promptly. M3 Home Repair and Remodeling handles toilet repair and replacement as part of our home repair services.
A Running Toilet
A toilet that keeps running, hisses, or refills now and then is leaking from the tank into the bowl. The EPA’s WaterSense program notes that a leaking toilet can waste about 200 gallons of water a day, and many leaks are silent. A simple dye test confirms it: add a few drops of food coloring to the tank, wait fifteen to twenty minutes without flushing, and see whether color appears in the bowl.
Common causes of toilet repair, from most to least frequent:
- A worn or warped flapper. The rubber seal at the bottom of the tank stiffens with age and no longer seals. Replacing it is a short job. Flappers come in different sizes (two-inch and three-inch are common), so match the one you have.
- A chain that is too tight or too long. A tight chain keeps the flapper from closing; a long one can tangle underneath it.
- A faulty fill valve. If water keeps flowing into the overflow tube, the water level is set too high or the fill valve is worn. Adjusting the float or replacing the valve fixes it.
- Mineral buildup on the flapper seat, which is cleaned with a scrub pad.
A Toilet That Will Not Flush Well
Weak flushes can come from a partial clog, from clogged rim jets under the bowl rim (mineral deposits), from a water level set too low in the tank, or from a flapper that closes too early. We check the tank level and flush action first, then look at the bowl.
A Toilet That Rocks or Leaks at the Base
A toilet that moves when you sit on it, or a puddle around its base, usually means the seal underneath has failed or the toilet is loose. The wax ring sits between the toilet and the drain flange and seals the connection. If it is compromised, water leaks onto the subfloor, where it can rot the wood and stain the ceiling below.
- A loose toilet. Tighten the closet bolts evenly, alternating sides, a little at a time. Over-tightening cracks the porcelain.
- A persistent wobble. Shims can level an uneven floor, and the toilet is trimmed and caulked at the base.
- A leak at the base. The toilet is lifted, the old wax ring is removed, the flange is checked, and a new ring is set. A new ring should be fitted any time a toilet is removed.
- A damaged flange. If the flange is cracked or sits below the floor surface, it needs a repair ring or replacement before the toilet is set again.
In a second floor bath in Kennesaw, water was pooling around the base of the toilet after every flush, and the bowl itself rocked when you sat on it hard.
We shut off the supply and lifted the toilet, and the old wax ring had crumbled to a flat ribbon underneath; the closet bolts were corroded at the threads as well. The flange was solid and sitting right with the floor, which is the good news on jobs like this.
We set two new stainless bolts through the flange and base, seated a new double gasket wax ring, and lowered the bowl level so it sits tight and square. There is a slight slope in the subfloor there, so we trimmed two small shims under the front feet to take the rocking out of it, then sealed around the base with a bead of clear silicone caulk. We opened the supply valve, flushed three times, and checked every connection for drips while I stood over the floor with a dry cloth.
I tell people in this part of Georgia: if you wipe a cold tank dry and it sweats back within an hour, that is condensation from our summers, not a leak. This one was the real thing, and it is gone now.
“Jim located and installed a taller toilet, grab bars for the shower and toilet areas, and a hand held shower wand. It made the difference! He’s extremely competent, capable and caring!!!” – Fran Mosher
M3 Home Repair and Remodeling LLC is a Kennesaw, Georgia-based handyman business backed by over eighty verified 5-Star Reviews on Google.
Leaks You Might Not Expect
- The supply line and shutoff valve. Dampness at the wall or under the tank is often a worn supply line or a valve packing nut.
- Tank bolts and the tank-to-bowl gasket. Drips from the center of the toilet between tank and bowl point here.
- Sweating. Condensation on a tank in humid Georgia weather is not a leak, but it can look like one. Wipe it and see if the water returns.
Toilet Repair or Replacement?
Repair is nearly always the better choice when the porcelain is intact. Consider replacement when the tank or bowl is cracked, when the toilet is an old high-volume model, or when repeated problems add up. Current toilets must use no more than 1.6 gallons per flush, and WaterSense-labeled models use 1.28 or less, saving a measurable amount of water over the years.
When a Plumber Should Do It
Some jobs belong with a licensed Plumber, and we will say so plainly: repairing or relocating the drain, replacing a cracked flange set into the floor structure, or fixing a supply line problem inside the wall. We would rather point you to the right professional than do work that should be permitted and inspected.
What to Do While You Wait
If a toilet is leaking or overflowing, close the shutoff valve on the wall (turn it clockwise) to stop the water, and use towels to protect the floor. If water has reached the subfloor, tell us, since wet wood below needs to be dried and checked.
Get Help With Your Toilet Repair
M3 Home Repair and Remodeling is a registered Georgia LLC, bonded and insured, owner-run by Jim Mitchell. We can diagnose a garbage disposal jam, a leak or a dead unit, and replace the disposal when that is the better choice. Call 706-969-5774 or send us a message with a photo of the problem, the make and model if you can see it, and what it is doing. We always offer free estimates.