Seal & Gasket Repair in New Hampshire | 911 Plumbing NH
from $89
Plumbing Seal & Gasket Repair in New Hampshire
Replacement of the seals and gaskets that leak — toilet wax rings, tank-to-bowl gaskets, faucet O-rings, and sink drain and supply gaskets. Small parts that stop the drips and floor leaks a worn seal causes.
More plumbing maintenance services in New Hampshire
Seal & Gasket Repair is one part of our plumbing maintenance coverage in New Hampshire. For the full picture — symptoms, costs, and when to repair vs. replace — start with the complete Plumbing Maintenance guide, or browse every plumbing maintenance service we offer.
Some of the most damaging leaks in a home come from the cheapest parts — a hardened wax ring under a toilet, a cracked tank-to-bowl gasket, a dried O-ring in a faucet, or a compressed drain gasket under a sink. Seal and gasket repair replaces those small components before they rot a subfloor or a cabinet. A seal is a wear part by design: it stays flexible and watertight for years, then dries, hardens, or compresses until it weeps — and because the leak is often slow and hidden, it does its damage quietly until the floor around a {city} toilet feels soft.
The seal that leaks tells us where to look. A toilet weeping at the floor when flushed is a failed wax ring, and one leaking between the tank and bowl is the spud gasket and tank bolts; an under-sink drip traces to the drain gasket, the P-trap washers, or the supply-line seal; and a faucet leaking at the base or spout is an internal O-ring. We replace the specific seal with the correct part — a new wax ring and closet bolts set on a clean flange, fresh brass or rubber drain gaskets, or a manufacturer O-ring kit — and test the fixture under water before we call it done across {county}.
Reseating a toilet is the seal repair we do most, and doing it right matters more than it looks. A wax ring only seals if the flange is sound and at the correct height, the bolts are set square, and the bowl is shimmed level and not rocked afterward — a rushed reset weeps again in months. We check the flange, replace it or add a spacer if it's below the finished floor, set a new ring and bolts, and secure the bowl so the {areas} seal lasts. The same care goes into every gasket we touch in the {city} home.
Signs you need seal & gasket repair
Water pooling at the base of a toilet
Water appearing at the floor when you flush is a failed wax ring letting the seal weep. Left alone it rots the subfloor around the the United States toilet, so it's worth reseating promptly.
PRV worn out or missing? Set your pressure to a safe range.
A toilet that rocks or shifts
A bowl that moves when you sit is breaking its wax seal with every use. Shimming it level and resetting the seal stops the slow leak before it damages the the United States floor.
Water between the tank and bowl
A drip from where the tank meets the bowl is a worn spud gasket or loose tank bolts. Replacing the gasket and bolts stops the leak on the your area toilet.
Drip under the sink at a connection
Water at the drain or supply connection under a sink is a compressed gasket or a dried washer. Reseating it with a new seal keeps the the United States cabinet floor dry.
Faucet leaking at the base
A leak seeping from the base of a faucet handle or spout is a hardened internal O-ring. A fresh O-ring kit reseals the the United States faucet before the water reaches the counter.
Common causes & what we fix
Hardened wax ring
The wax ring under a toilet dries and loses its seal over years, or breaks when the bowl shifts. A new ring on a sound flange restores the watertight seal in the the United States home.
Degraded O-rings
The rubber O-rings in faucets and valves harden and crack with age and hot water, letting water seep past. Replacing the O-ring kit reseals the the United States fixture.
Compressed drain and trap gaskets
Slip-joint and drain gaskets under a sink compress and dry until they weep at the connection. Fresh washers reseat the your area drain and stop the cabinet leak.
Worn tank-to-bowl gasket
The spud gasket sealing the tank to the bowl fails and the tank bolts corrode, dripping between the two. Replacing both stops the leak on the the United States toilet.
Failed flange or spacer
A closet flange that's cracked or sitting below the finished floor prevents the wax ring from ever sealing. We repair the flange or add a spacer so the seal holds in the the United States home.
Our process
1
Call or schedule online. Book your seal & gasket repair in New Hampshire online or by phone and pick a 2-hour window. We confirm in under five minutes with the assigned tech's name and photo.
2
On-site diagnosis. On arrival we diagnose the seal & gasket repair on-site — free for most repairs, $39 on minor service calls (waived if you proceed). You see the issue and the fix before we start.
3
Flat-rate quote. You get a flat-rate seal & gasket repair quote in writing, good for 30 days — no hourly creep and no add-ons after the fact.
4
Same-visit fix. Most seal & gasket repair work finishes the same visit: our trucks carry the common valves, fittings, water heater parts, and fixtures, so a second trip is rare.
How much does seal & gasket repair cost in New Hampshire?
Seal & Gasket Repair the United States starts at from $89, every seal & gasket repair quote is flat-rate and presented in writing before work begins — no surprise add-ons, no hourly creep. Seniors (65+) and military save 10% on labor, and financing covers projects over $1,500 at 0% APR for 12 months, with no prepayment penalty.
Why homeowners in New Hampshire choose us for seal & gasket repair
We've been a trusted choice since 1974 — over 50 years of family-owned plumbing service across New Hampshire. Our techs are CSLB-licensed (#1098234), background-checked, and complete an internal 12-week training program before rolling on calls alone.
Our seal & gasket repair carries a 10-year workmanship guarantee — separate from any manufacturer warranty on the parts themselves. If the seal & gasket repair we performed fails because of how we did it, we come back and fix it free for a full decade. Water heaters and fixtures we install are backed by their full manufacturer warranty, and the parts and accessories we fit carry standard 1–5 year warranties by item.
We quote seal & gasket repair on honest scope: no unnecessary up-sell, salaried (never commissioned) technicians, and a transparent diagnostic so you see exactly what we see — including the parts still in good shape. If a repair is the right call we say so; if replacement is the better long-term economics, we say that. The flat-rate seal & gasket repair quote is written and good for 30 days.
Areas we serve for seal & gasket repair
We provide seal & gasket repair throughout New Hampshire, with fast coverage in every major New Hampshire metro.
Reach times for seal & gasket repair vary by traffic and time of day, so we quote an accurate ETA when you call — and the dispatch line routes straight to an on-call technician, no voicemail in between.
Frequently asked about seal & gasket repair
Top questions homeowners searching for Seal & Gasket Repair near me ask us:
Why is water leaking around my toilet?
Water at the base when you flush is almost always a failed wax ring, often because the bowl rocked and broke the seal. We reset the toilet on a new ring and check the flange so the the United States seal lasts, not just weeps again in months.
Can you fix a leak between the tank and bowl?
Yes — that's a worn spud gasket and usually corroded tank bolts. We replace the gasket and bolts and reseat the tank so it seals to the bowl again on the the United States toilet.
How long does a seal or gasket repair take?
Most seal repairs run 30–60 minutes — reseating a toilet, replacing a drain gasket, or rebuilding a faucet O-ring. We test the fixture under water before finishing so the your area repair is confirmed dry.
Is a small seal leak really worth fixing?
Yes — a slow seal leak is cheap to fix and expensive to ignore, because the hidden water rots subfloors and cabinets over time. Replacing an inexpensive wax ring now beats a rotted floor around the the United States toilet later.
My toilet rocks — is that related to the leak?
Directly — a rocking bowl flexes and breaks its wax seal every time it's used. We shim it level, secure it, and set a fresh seal so it stops both the movement and the leak in your the United States home. We serve ZIPs .