Heating Service

Proactive Heating System Maintenance

Family owned and operated, MASI Plumbing, Heating & A/C is a local company with ties to the community. We look forward to providing our friends and neighbors with superior quality and rewards. Through meticulous troubleshooting, cleaning, and tuning, our highly trained technicians optimize energy efficiency, heating capacity, safety, air quality, reliability, and sustainability of your heating system. You’re going to spend less to enjoy better comfort. Prioritizing your satisfaction, MASI Plumbing, Heating & A/C offers brands, expertise, and service you can trust throughout Nashua, Milford, Amherst, Hudson, & Merrimack, NH.

Give our team a call for all your heating service needs in Nashua and Southern New Hampshire!

Professional service is a requirement of warranty coverage and optimizes long-term performance. But how do you know you’re getting maximum benefit from your investment? Simply call MASI Plumbing, Heating & A/C for proactive upkeep anywhere in Southern New Hampshire. You can reach us at (603) 889-2331. Speak with one of the knowledgeable members of our team to take advantage of convenient scheduling and flat rate pricing on furnaces, heat pump systems, boilers and more. We handle the essential tasks with the integrity of workmanship that ensures unmatched results.

Heating Maintenance and more in Milford, NH

Serving Southern New Hampshire

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

We service all makes and models

  • TRANE
  • AMERICAN STANDARD
  • FUJITSU
  • BRADFORD WHITE
  • RINNAI
  • MITSUBISHI
  • NAVIEN
  • STATE
  • BOSCH
  • CARRIER/BRYANT
  • LENNOX
  • LG
  • YORK
  • BURNHAM
  • WEIL MCLAIN
  • BUDERUS
  • VIESSMANN
  • UTICA
  • KOHLER
  • TOTO
  • STERLING
  • MOEN
  • DELTA
  • GROHE

Maintenance Plans

Our technicians are New Hampshire licensed certified heating and cooling experts.

Maintenance Plan Details

Financing Options

Convenient monthly payments, with resolving line of credit you can use over and over again.

Finance your project

Heating Maintenance ∴ Hudson, NH ∴ Nashua, NH ∴ Milford, NH

Heating Service, Furnace Maintenance, Furnace Service & Heater Maintenance Nashua, NH, Hudson, NH, Merrimack, NH, Milford, NH & Amherst, NH

Write a Review Write a Review

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!

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Heating Maintenance

Bedford, NH

Hollis, NH

Amherst, NH

Nashua, NH

Merrimack, NH

Milford, NH

Hudson, NH