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$50 OFF Boiler Repair

Boiler Service

Boiler repair, maintenance, and installation for Southern NH homes. Expert care for the region's most trusted heating system.

603-288-2224

Boiler Repair & Maintenance Specialists

Hydronic hot water boilers have been heating New Hampshire homes for generations. The even, radiant warmth from baseboard and radiator systems is unmatched for comfort, and a well-maintained boiler can last 30 years or more. Copper Hound's technicians have deep experience with all types of residential boiler systems.

Boiler Services We Provide

  • Emergency boiler repair — 24/7 response for no-heat situations
  • Annual boiler tune-up and safety inspection
  • Boiler replacement and new system installation
  • Zone valve, thermostat, and zone controller service
  • Circulator pump replacement and hydronic system balancing
  • Expansion tank replacement and pressure relief valve service
  • Baseboard, radiator, and convector repair and replacement

Annual Boiler Tune-Up

An annual tune-up before heating season is the single best investment in your boiler's longevity. Our service includes combustion analysis, heat exchanger inspection, controls calibration, pressure and expansion tank check, circulator pump test, and a complete safety check.

Types of Boilers We Service

  • Gas-fired hot water boilers
  • Oil-fired boilers
  • High-efficiency condensing boilers
  • Steam boilers (older NH homes)
  • Combination (combi) boilers
Frequently Asked Questions
Warning signs include no heat or uneven heating, unusual noises (banging, kettling, or gurgling), pressure dropping repeatedly, visible water leaks around the unit, and a yellow or orange flame instead of blue.
Pressure loss is typically caused by a water leak in the system, a failing pressure relief valve, or a waterlogged expansion tank. Refilling repeatedly masks the real problem — let us find and fix the cause.
In many cases yes — and at current energy prices, it's often cost-effective. We assess your existing system and give you a realistic picture of conversion costs, ongoing savings, and payback period.
With proper annual maintenance, cast iron boilers commonly last 25–35 years. Modern high-efficiency units typically last 15–25 years. Annual service is the key to maximizing equipment life.