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Thermostat Replacement
Water too hot, too cold, or running out fast? We test and replace faulty upper and lower thermostats.
Learn More →The gas control valve is the brain of a gas water heater — it meters gas to the burner, holds the pilot, and shuts everything down if the flame goes out. When it fails, the symptoms are unmistakable: no hot water, a pilot that won't stay lit, or a burner that cycles erratically.
Gas work demands respect and training, and this is not a DIY repair. Our technicians are experienced with gas-fired water heaters of all major brands: we verify gas supply pressure, replace the valve and thermocouple as a system, leak-test every joint, and confirm safe combustion before we leave your Medford home.
Pilot that won't stay lit, burner that won't fire despite a lit pilot, water that's intermittently hot, or a valve that clicks without igniting all point to control-valve trouble. The red flag: any smell of gas. If you smell gas, don't touch the heater — leave the area and call your gas utility or 911 first, then call us once it's declared safe.
Cold weather is hard on gas valves. Basements get colder, combustion air gets denser, and marginal thermocouples that held a pilot all summer start dropping out in January. Moisture and corrosion on valve contacts accelerate too. A valve that 'mostly works' in October often quits entirely during the first real cold snap.
Many 'bad valve' diagnoses are actually bad thermocouples — the small sensor that tells the valve the pilot is lit. We test the thermocouple first; if it's the culprit, the fix is far cheaper. When the valve body itself has failed, we replace valve and thermocouple together so you're not paying for a second service call months later.
Don't wait — call us now at (833) 713-2101. We answer 24/7 across the Medford area.
📞 Call Emergency Line| Service | Typical Range |
|---|---|
| Gas system diagnosis & safety check | $89–$149 |
| Thermocouple replacement | $150–$275 |
| Gas control valve replacement | $300–$600 |
Representative ranges for the Medford, MA area. All gas work includes full leak testing and combustion verification — non-negotiable safety steps.
Water too hot, too cold, or running out fast? We test and replace faulty upper and lower thermostats.
Learn More →Leaking conventional tank? We pinpoint whether it's a fitting, valve, or the tank itself — and repair what's repairable.
Learn More →Burst or flooding water heater? Our 24/7 emergency crew stops the leak fast, day or night — including during cold snaps.
Learn More →Leave the house immediately without touching switches or the heater, then call your gas utility's emergency line or 911 from outside. Only after the area is declared safe should you call us for the repair.
Absolutely — and we always test it first. A thermocouple is a $150–$275 fix versus a full valve replacement, so an honest diagnosis saves real money.
Typically 1–2 hours including leak testing and combustion verification. We never rush the safety checks.
Yes. Any gas valve service includes a venting and combustion-air check — a new valve on a poorly vented heater is a hazard we won't leave behind.
Available in Medford and nearby communities, including:
Don't let a small leak turn into major water damage. Call now for fast, upfront-priced water heater leak repair anywhere in the Medford area.
📞 Call (833) 713-2101