Whether you’re in the bustling city of Nashua or the serene town of Hollis, our experienced team is ready to ensure your home or business remains comfortable throughout the year. We offer a full suite of heating, cooling, and air quality services tailored to meet the specific needs of each location.

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Located in Nashua, MASI Plumbing, Heating & A/C proudly serves Southern New Hampshire, including:

    Nashua, NH

    Nashua, known for its vibrant community and economic growth, demands top-quality HVAC solutions. At MASI Plumbing, Heating & A/C, we offer a comprehensive range of services in Nashua, including air conditioning installation, heating system maintenance, and indoor air quality improvements. Our team is dedicated to keeping Nashua residents comfortable no matter the season.

    Milford, NH

    Milford, with its rich history and close-knit community, requires reliable HVAC services to maintain comfort year-round. MASI Plumbing, Heating & A/C is proud to serve Milford with expert heating and cooling solutions, from routine maintenance to emergency repairs. We are here to ensure your systems run efficiently and effectively in every season.

    Amherst, NH

    Amherst is a picturesque town that values quality and comfort. Our HVAC services in Amherst are designed to meet the unique needs of its residents, whether it’s through energy-efficient system installations or timely repairs. At MASI Plumbing, Heating & A/C, we are committed to helping Amherst homes stay cozy in winter and cool in summer.

    Hudson, NH

    Hudson’s blend of residential and commercial areas requires versatile HVAC solutions. MASI Plumbing, Heating & A/C offers a wide range of services in Hudson, including heating and cooling system installations, repairs, and regular maintenance. Our goal is to keep Hudson homes and businesses running smoothly with minimal disruptions to your comfort.

    Merrimack, NH

    Merrimack, known for its suburban charm and beautiful landscapes, benefits from our tailored HVAC services. Whether you need a new air conditioning unit, furnace repair, or indoor air quality solutions, MASI Plumbing, Heating & A/C is here to provide Merrimack residents with reliable and efficient service to enhance their comfort year-round.

    Hollis, NH

    Hollis is a peaceful town that values a high standard of living. At MASI Plumbing, Heating & A/C, we are dedicated to offering HVAC services that match the expectations of Hollis residents. From regular system tune-ups to complete system replacements, our services are designed to keep your home comfortable and energy-efficient throughout the year.

    Bedford, NH

    Bedford is a thriving community that demands high-quality HVAC services. MASI Plumbing, Heating & A/C is proud to serve Bedford with expert heating and cooling solutions, including energy-efficient upgrades and reliable repair services. Our team is committed to ensuring that Bedford homes and businesses enjoy consistent comfort in every season.

24/7 Emergency Heating & Cooling Repair

Serving Southern New Hampshire

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

Heating ServiceFurnace RepairHeating RepairHeater InstallationFurnace Service ∴ Milford, NH ∴ Amherst, NH ∴ Merrimack, NH

Heater Installation, Furnace Repair, Furnace Service, Heating Service & Heating Repair Nashua, NH, Hudson, NH, Merrimack, NH, Milford, NH & Amherst, 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!