Toilet overflowing or leaking at the base: act right now
An overflowing bowl puts dirty water on your floor, and a base leak can soak the subfloor for weeks before you notice. Neither one waits well.
Reach behind the toilet and close the supply valve. If the bowl is rising, lift the tank lid and push the rubber flapper down to stop more water entering. Do not flush again to see if it clears.
Water near an outlet or a ceiling below?
Water and electricity do not mix. If the leak has reached a light fixture, outlet or the ceiling of the room below, switch off that breaker only if you can reach the panel dry, and keep everyone out of the wet area.
Then call (603) 815-9179. Tell us whether the water comes from the bowl, the tank, the base or the wall connection. After hours, nights and weekends included, the same line reaches a dispatcher.
Running toilet diagnosis in four steps
A toilet that hisses, refills on its own or runs for minutes after a flush wastes water every hour of the day. Most runs come down to three parts inside the tank.
Check the flapper
Lift the tank lid and look at the rubber seal over the drain. If it is warped, cracked or slimy, it lets water leak into the bowl and the tank keeps refilling.
Add dye to the tank
A few drops of food coloring in the tank, no flush for fifteen minutes. If color shows in the bowl, the flapper or seat is leaking.
Watch the fill valve
If water keeps rising until it spills down the overflow tube, the fill valve is not shutting off. A float set too high does the same.
Check the chain and float
A chain that is too tight holds the flapper open. One that is too loose can tangle. Adjust the float arm or cup if the water level sits above the overflow mark.
Flappers and fill valves are inexpensive parts, but the wrong size or brand can fail again quickly. If you are not sure which one fits, let us confirm it. A silent leak can waste a lot of water over a month, and if the dye test is clean but the meter still moves, our leak detection service checks the rest of the house.
Base leak or tank leak: what the signs mean
| Where you see water | Likely cause | What it means |
|---|---|---|
| Around the base, only after flushing | Failed wax ring or loose closet bolts | The seal at the floor drain is leaking. Floor damage can follow |
| Around the base, constantly | Cracked bowl or leaking supply connection | Shut the supply valve and call |
| Beneath the tank, on the bowl | Tank bolts or spud gasket | Water seeps from the tank into the bowl joint |
| Sweating on the outside of the tank | Condensation | Cold water meets humid air. Not a leak |
| At the wall valve or hose | Worn stop valve or supply line | Replace the valve or line, often an easy fix |
Toilet will not stop running?
Call (603) 815-9179 for a same-day visit when available, and tell us what you found so we bring the right parts.
Clogged toilet or a vent problem?
A single clog is usually paper or a foreign object stuck in the trap. A plunger with a flange is the safe first try, pushed slowly so it does not slosh water over the rim.
If the toilet clears and then slows again within days, or other drains gurgle when you flush, the cause may sit further down the line. A partly blocked vent can also make a toilet flush weakly and gurgle. Those are not plunger jobs.
Local clog
- Only this toilet is affected
- A plunger or closet auger clears it
- It stays clear for weeks
Deeper line or vent issue
- Tub or sink gurgles when you flush
- Slow flush returns days after clearing
- More than one fixture backs up
When more than one drain backs up, we may need a camera or a cable run. See drain cleaning for what that involves, or sewer line repair if the main line is damaged.
Wax ring, flange and supply valve repairs
The wax ring sits between the toilet and the floor flange and seals the waste path. When it fails, water or sewer gas can escape at the base. A rocking toilet wears the ring out, so loose bolts are often the root cause.
The flange is the ring bolted to the floor. If it is cracked, corroded or sits too low, a new wax ring will not seal, and the flange itself needs a repair. Shims fix a toilet that rocks on an uneven floor, and a stable toilet is what keeps a new ring working.
The supply stop valve is a small part that does a big job: it lets you isolate the toilet. Valves that drip at the stem, stick or will not close completely should be replaced. We often change the braided supply line at the same time.
Repair or replace the toilet?
Repair makes sense when
- The bowl and tank are not cracked
- The problem is a flapper, fill valve or ring
- The toilet flushes well and fits the room
Replace makes sense when
- The porcelain is cracked or leaking
- You need repeated repairs on an older toilet
- It clogs often or flushes weakly
Newer toilets use less water per flush. WaterSense is a real EPA label for fixtures that meet water-efficiency standards, and it is worth looking for when you shop.
Installation means shutting off the supply, removing the old toilet, checking the flange, setting a new wax ring, bolting the toilet down level with shims where needed and testing for leaks. Always follow the manufacturer's instructions for the model you choose.
What affects the cost of toilet repair
What affects the price
Toilet jobs run from a quick part swap to a full removal and reset. These factors set the price.
Want your real number? Call (603) 815-9179 and we will give a clear price before work starts.
Landlords and property managers: tell us the unit number and tenant contact when you call, and whether the leak reached the unit below. We work in Lawrence and nearby towns too, and (603) 815-9179 is open all night.
Questions we hear
Yes. We dispatch 24/7, including nights, weekends and holidays, and book same-day visits when available. Shut the valve behind the toilet first, then call.
The usual causes are a worn flapper, a fill valve that does not shut off or a float set too high. A few drops of food coloring in the tank will show whether water is leaking into the bowl.
Yes. It often means the wax ring has failed, and the water can rot the subfloor over time. Shut the supply and have it checked soon.
If it keeps returning, or other drains gurgle when you flush, the issue may be in the main line or a vent. That needs a camera, not another plunge.
If the porcelain is sound and the problem is a part, repair is usually enough. A cracked bowl, constant clogs or an older inefficient toilet may be better replaced.
WaterSense is an EPA label for fixtures that meet water-efficiency standards. A WaterSense toilet uses less water per flush than older models.
Yes. A stop valve that drips or will not close is replaced, usually with a new braided supply line at the same visit.
Not sure which part has failed? Call (603) 815-9179 and describe what the toilet is doing.