Situated on the banks of the Merrimack and Nashua rivers, Nashua offers a depth of history and gorgeous scenery. The ideal combination of natural wonders and city excitement, there’s everything from amusement parks, nightlife and great restaurants to picturesque parks, beautiful lakes, flowing rivers and majestic forests to explore. With a diversity of seasons, there’s swimming, hiking and picnicking as well as skiing, sledding and ice-skating for entertainment.

Local Heating, Cooling & Plumbing Solutions

At MASI Plumbing, Heating & A/C, we concentrate on creating perfectly comfortable, energy efficient and welcoming living environments. Our expertise covers air conditioner repair, furnace repair, plumbing repair, new installation, replacements, maintenance, hybrid heating, oil to gas conversion, generators, water heaters, clogs, leaks, indoor air quality challenges and so much more. We make sure there’s no need to call anyone else!

Contact MASI Plumbing, Heating & A/C for HVAC Service & Repair

Reach out to MASI Plumbing, Heating & A/C at (603) 889-2331 for prompt and convenient scheduling. We look forward to putting our full resources to work for you. We offer preventative maintenance plans to keep your essential systems at their best and emergency response for problem-solving at any time of day or night. Our team is fully prepared for all makes, models and types of equipment, minimizing disruption and turnaround while maximizing value across Nashua, Milford, Amherst, Hudson, & Merrimack, NH.

Furnace Replacement in Nashua, NH | Heating & Cooling

Serving Southern New Hampshire

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

Furnace ReplacementHVACFurnace RepairPlumbing ∴ Nashua, NH

AC Replacement, Heating & Cooling & AC Repair in Nashua, NH

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!