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Tradition and history meets progressive technology. You can seamlessly manage your account, delivery schedule and much more right from our convenient mobile app. Download it on the Apple Store or Google Play.

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Heating Oil

Delivery and Service

We deliver BioHeat® and Kerosene. Our technicians are available to check all of your oil appliances as well.

Propane Gas

Delivery and Service

We've been providing exceptional propane gas service in New Hampshire and Maine for more than 80 years.

Heating and AC

Install and Service

At D.F. Richard Energy we sell and install all of the best major brands for your complete propane gas and oil energy needs.

Self-Cleaning No Maintenance Air Purification

D.F. Richard can help protect your home from mold, bacteria, viruses, and other pollutants with the iWave-R air purification system.

The iWave-R is a no-hassle, no-maintenance solution that can be installed right into your existing ducted HVAC system.

Learn More About The iWave-R
  • “Great service and office team.”
  • “Technician was great, friendly , explained everything and showed me the results.”
  • “Very satisfied. Recommended your company to several co-workers. Very professional.”
  • “We have relied on DFR for the past 30 years and have ALWAYS been impressed by your fast and efficient service. Thank you!”
  • “From the moment I met Dave Richard for the sale, to the scheduled time for install, and through the completion of work, I am exceptionally happy with all services. I was advised of scheduling and given status of work as it went on. I will highly recommend D.F. Richard for work.”
    Dan & Donna
  • “Always accommodating to our needs. Very friendly and nice to the community.”
    Somersworth Fire Department
  • “D.F. Richard is always prompt, efficient, and fixes the issue quickly. Wouldn’t use anyone else!”
  • “As always, quick response and good service!”
  • “I don’t check 'excellent' without meaning it! I am very satisfied with all aspects of your work!”
  • “It will be 50 years I have been with your company. Whenever I call with a question your customer service people are always courteous and helpful.”
  • “All your techs are patient teachers. As a single woman with no knowledge of mechanical basement things, this is very helpful!!! (The men are also friendly but respectful).”
  • “We were out of town when service was needed. We made an SOS call and service was performed expediently. We thank you so much for the excellent service. Your company is top notch.”
    Nina and John

Service Areas

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Best of the Seacoast

Come see why we have been voted "Best of the Seacoast" for three years running!

Spring Preparation

Spring is finally here! There are many things you can do now to avoid problems and have a trouble-free spring. Here are a few suggestions.

  • Schedule yearly preventative maintenance on your heating, cooling, and hot water equipment.
  • Replace all air filters.
  • Keep your home comfy upon your arrival by investing in a wireless thermostat. Monitor your home while your away.
  • Clean your registers, vents, and baseboards to remove dust buildup and pet dander before you turn on your air conditioner.
  • Keep access to outside equipment easy for maintenance. Avoid planting in these areas.
  • Replace batteries in smoke detectors/CO2 detectors.

Email: [email protected]
Phone: 1-603-742-2020
Mail: PO Box 669, Dover NH 03821-0669
Office: 124 Broadway, Dover NH 03820

We are open from 8am — 4:30pm weekdays.
24/7 Emergency: 1-800-649-6457