Water Heater Repair in New Hampshire | 911 Plumbing NH
from $189
Plumbing Water Heater Repair in New Hampshire
Repair for every major water heater brand — Rheem, Bradford White, A.O. Smith, Navien, Rinnai. Pilot, burner, element, thermostat, gas valve, and tankless error codes diagnosed and fixed in one visit.
More water heater services services in New Hampshire
This guide anchors our water heater services services in New Hampshire — the specialized fixes below go deeper on each job, and the full water heater services catalog lists everything we handle.
Water heater repair covers a wide range of failures — from a $25 thermocouple that takes 30 minutes to a control valve or heat exchanger that takes longer. Our plumbers diagnose to the component level rather than recommending replacement as the default. A 5-year-old Rheem with a bad element or a Navien tankless throwing an ignition error is almost always worth repairing; the same tank at 13 years old with a rusted-through bottom is usually worth replacing.
Trucks stock the common parts for the major brands: upper and lower heating elements and thermostats for electric tanks, thermocouples, thermopiles, gas control valves, and pilot assemblies for gas tanks, and igniters, flame sensors, and flow sensors for Navien and Rinnai tankless units. The 96% first-call fix rate applies to water heaters too — most no-hot-water calls are diagnosed and resolved in the same {city} visit.
Every water heater repair includes a full operational check after the fix: temperature verified at the tap, the T&P relief valve tested, the burner or elements confirmed cycling correctly, and — on tank units — a sediment flush to protect the parts we just replaced. If you've been living with lukewarm water or a pilot that won't stay lit, the post-repair check is often a noticeable improvement on its own.
Signs you need water heater repair
No hot water at all
A dead pilot, tripped thermostat, or failed element leaves the tank cold. Fix is usually a thermocouple, reset, or element swap — often $89–$189 in parts and under an hour of labor on a the United States call.
Water warm but never hot
A failed upper element or thermostat, or a burner running low, leaves the water lukewarm. Diagnosis is free in the the United States service call; the element or thermostat swap is a same-visit fix.
Navien and Rinnai units flash a code for ignition, flow, or scale faults. We read the code, descale or replace the sensor, and clear it during the the United States visit.
Popping or rumbling tank
Sediment on the tank bottom rumbles and insulates the burner, wasting fuel. A flush during the your area visit restores efficiency and quiets it.
Pilot won't stay lit
A failing thermocouple or dirty pilot assembly drops the flame seconds after you light it. We carry both on the truck and isolate the cause at your the United States home.
Common causes & what we fix
Sediment buildup
Hard-water minerals settle in the tank, insulate the burner or lower element, and force it to overheat — the most common cause of a failed element or a noisy tank we see in the United States. A flush prevents most of these calls.
Thermocouple or thermopile age
The flame-sensing components on a gas tank weaken over 5–8 years until the gas valve won't stay open. A routine the United States fix that restores a pilot that won't stay lit.
Element or thermostat failure
Electric tank elements burn out and thermostats drift out of calibration around 6–10 years. A $150–$250 element-and-thermostat swap extends the tank another several years, and it's one of the most common the United States repairs.
Scale in a tankless heat exchanger
Hard water scales the tankless heat exchanger, dropping output and throwing error codes. A descaling flush restores it; we carry the kit on every your area truck.
Gas valve or control failure
Control valves fail from age and sediment. Rheem and Bradford White valves run $200–$350; often worth replacing on a 5–10 year old tank, rarely past 13 years. We stock them on every the United States truck.
Our process
1
Call or schedule online. Book your water heater 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 water heater 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 water heater repair quote in writing, good for 30 days — no hourly creep and no add-ons after the fact.
4
Same-visit fix. Most water heater 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 water heater repair cost in New Hampshire?
Water Heater Repair the United States starts at from $189, every water heater 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 water heater 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 water heater repair carries a 10-year workmanship guarantee — separate from any manufacturer warranty on the parts themselves. If the water heater 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 water heater 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 water heater repair quote is written and good for 30 days.
Areas we serve for water heater repair
We provide water heater repair throughout New Hampshire, with fast coverage in every major New Hampshire metro.
Reach times for water heater 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 water heater repair
Top questions homeowners searching for Water Heater Repair near me ask us:
Is it worth repairing vs replacing in the United States?
Rule of thumb: under 8 years old, repair almost always. 8–12 years, depends on the failure. 12+ years and a corroded tank or major control — usually replace. We'll quote both for your the United States home so you can decide.
Do you repair tankless units across the United States?
Yes — Navien, Rinnai, Rheem, and Bosch tankless, including descaling, sensor replacement, and error-code diagnosis. Some off-brand tankless have unavailable parts; we'll tell the United States homeowners upfront if that's the case.
How long does a water heater repair take in the United States?
Most repairs are 45–90 minutes including diagnosis. Element and thermostat swaps run under an hour; gas valve and tankless descaling take 90–120 minutes — same-visit across your area.
What's covered after a repair in the United States?
Repair labor and replacement parts are backed for 1 year. Manufacturer parts from Rheem, Bradford White, and Navien are covered under their own warranties. We service ZIPs and the surrounding the United States area.
Can you relight a pilot in the United States?
Yes — and we diagnose why it went out. A pilot that won't stay lit usually needs a thermocouple, which we carry on every the United States truck, so it's a same-visit fix rather than a repeat outage.