Specializing in high efficiency solutions, MASI Plumbing, Heating & A/C helps homeowners to reduce their carbon footprint.

We encourage you to give us a call at (603) 889-2331 to hear more about the benefits of a hybrid system. Lessen impact on the environment, significantly trim monthly costs, and enjoy year round comfort. Combining a heat pump with a secondary heater, typically a gas-powered furnace, provides an effective and rewarding solution to challenging weather in Southern New Hampshire.

Professional High Efficiency Heating and Cooling

Hybrid systems optimize energy efficiency by taking advantage of the fuel type that’s most cost-effective and best suited to current demand. Heat pumps avoid the combustion process by drawing ambient heat from the outside air. They provide exceptionally clean, safe, and energy efficient heating until the temperature drops below freezing. At that point, the hybrid system switches to furnace mode, utilizing the most economical fuel and maintaining ideal indoor comfort.

For the majority of the year, the heat pump handles demand, offering heating and cooling as well as humidity control and air filtration. Partnering a furnace with the heat pump lessens greenhouse gas emissions, achieves 96% efficiency and delivers the ultimate in control over comfort. MASI Plumbing, Heating & A/C offers free estimates, flat rate pricing, and services all makes and models. We are family owned and operated, local, and continue 55 years of dedication. Our certified technicians are always here to help, remaining on-call 24/7 for emergency assistance throughout Nashua, Milford, Amherst, Hudson, & Merrimack, NH.

Serving Southern New Hampshire

  • Wilton
  • Milford
  • Amherst
  • Mont Vernon
  • Brookline
  • Hollis
  • Nashua
  • Hudson
  • Litchfield
  • Bedford
  • Manchester
  • Derry
  • Londonderry
  • Windham
  • Pelham
  • Salem
  • Merrimack

Paula L.

Came home to my central a/c not working. After checking a few things, I called Masi Plumbing, based off of consumer reviews here. The person who answered the phone was accommodating to my needs and had a service person here super promptly! The service person was very friendly, highly informative and fixed the issue promptly- and not at a high cost either! Will def be calling them for our needs again, and referring them as well. Thanks a million Masi Plumbing!

Susan C.

My pipes froze and burst on a Sunday evening. I called several plumbers who would not give me the time of day. MASI Plumbing to the rescue! They sent a plumber (Nick) out immediately who was able to repair the broken pipes that evening, even though though he had already worked all day! A huge thank you! I highly recommend MASI Plumbing and will be using them exclusively in the future.

Christine C.

Bought a new boiler system from them this year and they gave us the most comprehensive quote for the right work (pointed out the need for fresh air and a new oil line which we knew were needed) at a good price. Unfortunately one of our parts in the system failed, but they had it replaced and our system up and running within 2 hours, and covered under warranty, so no cost to us. They have always been very friendly, down to earth, but professional. Great to work with!