Rheem AC

Proactive service measures are essential for all types, brands, and models of cooling equipment.

Regular troubleshooting, cleaning, and inspection not only fulfill the requirements of manufacturer’s warranty coverage but protect long-term value. So how can you be sure you’re maximizing the rewards of your investment?

Air Conditioner Maintenance in Merrimack, NH | Air Conditioning Service


Just contact MASI Plumbing, Heating & A/C at (603) 889-2331 for annual maintenance anywhere in Southern New Hampshire. Let one of the dedicated members of our team set up a convenient appointment and explain our flat rate pricing. We eliminate unpleasant surprises and manage the necessary service with the quality of workmanship that delivers exceptional results.

For all your air conditioner service needs, trust in MASI Plumbing, Heating & A/C today!

Family owned and operated, MASI Plumbing, Heating & A/C is a local HVAC dealer with strong roots in the community. We look forward to providing area home and business owners with customized services to prevent energy waste, diminished comfort, degraded air quality, equipment malfunction, and premature system failure. Through our efforts, you spend less on operation and ownership yet enjoy superior comfort. Dedicated to your satisfaction, MASI Plumbing, Heating & A/C offers brands, expertise, and service you can trust 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

Air Conditioner MaintenanceAC Tune Up

Air Conditioning Service & AC Service Amherst, NH, Milford, NH, Nashua, NH, Merrimack, NH & Hudson, 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!