Toilets fail in specific, diagnosable ways. The running sound after a flush, the phantom flush that cycles with no one in the bathroom, the wobbly seat, the bowl that won't clear with one flush โ each one points to a specific component. Our techs in New Boston diagnose the actual cause and fix the specific part that failed.
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A rocking toilet that's dismissed as a loose bolt and tightened without replacing the wax ring will continue letting sewer gas into the bathroom floor cavity. The right diagnosis matters.
We dye-test, fill-rate-check, and measure tank refill time to identify exactly which component is causing your toilet's symptoms. A running toilet can be caused by a worn flapper, a misadjusted float arm, a failing fill valve, or a cracked flush valve seat โ each with a different repair. We find the right one.
For toilets where the flush valve seat is chipped or the porcelain tank has cracked, we also carry compact replacement toilet units in standard rough-in dimensions.
Pulling and resetting a toilet requires shutting the water, draining both tank and bowl, disconnecting the supply line, unbolting the toilet from the flange, removing the old wax ring fully, inspecting the flange for damage, and seating a new ring with the correct compression profile for the floor height before resetting and re-bolting the toilet.
We quote toilet work at a flat rate before any repair begins. Whether it's a 20-minute fill valve swap or a 90-minute toilet reset with flange repair, you know the price before we start. Our rates for common toilet repairs are published โ ask for them when you call.
Our trucks are stocked for the most common toilet repairs โ most calls complete in a single visit.
Old-style ballcock fill valves with a float ball and brass arm are still common in older New Boston homes. We replace these with modern Fluidmaster-style anti-siphon fill valves that provide more reliable shutoff, quieter fill, and a 5-year warranty against failure.
If the flange is damaged โ cracked porcelain collar, corroded cast iron, or a flange sitting below finished floor height โ we repair or shim the flange before wax ring installation. A wax ring on a damaged flange won't hold long-term.
If the auger retrieves material and the toilet still doesn't clear, the blockage may be further in the drain line. We can extend the scope with a sectional cable machine or CCTV camera to determine if a foreign object (typically a toy or wipe product) is lodged deeper.
We can in many cases sand and polish a mildly damaged flush valve seat to restore the seal. When the seat is cracked or too severely scaled, we replace the flush valve assembly โ either with a manufacturer repair kit or a universal replacement valve.
This repair is commonly misidentified as a wax ring issue when the water appears at floor level. Water from a tank bolt leak runs down the outside of the bowl and accumulates at the base โ looking identical to a wax ring leak until you trace the water path.
When a toilet is cracked, has a non-rebuildable internal flush mechanism (common in some older European-style or wall-hung units), or the overall condition warrants replacement, we supply and install a new unit in the correct rough-in dimension for your bathroom. Standard 12-inch rough-in toilets are stocked on our trucks; 10-inch and 14-inch rough-in units can be sourced same-day or next-day.
Here's how a Masters Plumbing Service toilet call plays out in New Boston, NH from your first call to a quiet, leak-free bathroom.
We ask whether you have a gravity-feed toilet (standard) or a pressure-assist model, which affects which parts we bring.
For a rocking toilet, we assess floor movement, flange bolt tightness, and wax ring seal before recommending the appropriate repair.
If the diagnosis reveals a more involved repair than initially expected (damaged flange, cracked tank), we explain it before proceeding and re-quote accordingly.
Approved repairs execute immediately. After completion, we run five flush cycles to confirm the repair holds โ silent tank refill, no base movement, clear bowl, no water at the base.

Three toilet repairs in one visit across two bathrooms. The tech moved through each one efficiently โ new fill valve in the master, flapper replacement in the hall bath, and a wax ring reset in the kids' bathroom that had been slightly loose for over a year. All flat-rate, finished in two hours.
My kids flushed something that I have no interest in describing, and the toilet wasn't clearing. The tech used a closet auger and retrieved the obstruction without damaging the porcelain. Fast, professional, zero judgment. Exactly what I needed.
Water pooling at the toilet base had me convinced it was the wax ring. Tech traced the water to a corroded tank bolt โ water was running down the outside of the bowl and pooling at the base without any leak at the floor seal. A 25-minute repair, not the toilet reset I was dreading.

Masters Plumbing Service dispatches toilet repair technicians throughout New Boston and the broader New Boston, NH service area. Same-day appointments are available most days โ call to check availability for your zip code.

A running toilet wastes hundreds of gallons of water a week. Our toilet techs in New Boston, NH carry the parts to fix it today โ same visit, flat-rate price, guaranteed result.
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