We are New Hampshire’s gas and oil forced air furnace experts.

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

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

Furnace repair service on all makes and models

  • Repair, replace and install gas furnaces
  • Repair, replace and install oil furnaces
  • Repair, replace and install hybrid systems (furnace with heat pump)
  • Emergency furnace repair services

Annual furnace maintenance and tune-ups

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

High-efficiency furnace installation and replacement

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


Schedule Service or a FREE Home Analysis


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.