We are New Hampshire’s gas and oil boiler experts.

We’re licensed, certified home heating boiler repair, replacement and service specialists.

We’ve been repairing, replacing and installing boilers for over 25 years. We specialize in gas and oil boilers. A new gas or oil boiler can add up to 30% in energy savings.

Boiler repair service on all makes and models

  • Repair, replace and install gas boilers
  • Repair, replace and install oil boilers
  • Emergency boiler repair services

Annual boiler maintenance and tune-ups

  • Recommended by boiler manufacturers
  • Maintains peak operating efficiency
  • Extends equipment life
  • Prevents costly breakdowns
  • Checks for carbon monoxide leaks

High-efficiency boiler installation and replacement

  • Energy Star rated models save energy
  • Free in-home analysis and estimates


Schedule Service


FAST same day service, upfront pricing and clean, courteous technicians. Heating problems? Lose the wait! Why wait all day for service? Schedule an appointment that’s convenient for you. We’ll show up on time, listen to your needs, diagnose your situation, make recommendations and prepare pricing by the job, not by the hour, so there are no surprises. Our technicians will take great care of your home. They wear shoe covers, put down drop cloths, are trained to perform the work you need and will thoroughly clean up the work area. We follow up with a phone call to be sure you are satisfied. We stand by everything we do.

We’re here to help make your home heating problems go away. Just call Heritage – we’ll get it fixed today 1-800-977-4737.

Our home heating contractor services are 100% GUARANTEED. We back all our work with a written guarantee. If you’re not satisfied, we will come back and fix the job for FREE.