MASI Plumbing, Heating & A/C partners functionality with aesthetics.

Convenience with durability. Efficiency with quality. We offer a wide spectrum of faucets, vanities, tubs, toilets, showers, whirlpool tubs, and all types of furniture and accessories. Drawing from the most recognized and proven brands, we realize your unique vision and accomplish your specific goals. Whether you know exactly what you want or are looking for creative guidance in your bathroom remodeling project, MASI Plumbing, Heating & A/C draws from the expertise and experience to ensure an exceptional finished result for homeowners in Southern New Hampshire.

Professional Bathroom Remodeling Services

Our fully licensed plumbers follow the proper procedures to optimize the reliability, value, and integrity of your new bathroom. We invite you to visit our extensive and unequaled showroom and take a look at the many options. At MASI Plumbing, Heating & A/C, we install what we sell and are well-versed in all products. From the sizing of pipes and level of necessary water pressure for each specific shower system to placement of towel racks and available faucet finishes, no important detail is neglected.

Take advantage of our 55 years of experience. We tailor our recommendations to accommodate your budget and beautify any age or layout of bathroom. When you call on MASI Plumbing, Heating & A/C at (603) 889-2331, your project is completed without delays and to your highest expectations. Let us provide a free estimate, flat rate pricing, and unmatched return from your investment. Family owned and operated, MASI Plumbing, Heating & A/C is your local source for bathroom remodeling services across Nashua, Milford, Amherst, Hudson, & Merrimack, NH.

Professional Plumbing Fixture Installations

MASI Plumbing, Heating & A/C not only has what you need to complete your plumbing project, we uphold uncompromising levels of products, customer service, and workmanship. Our residential plumbing fixtures represent the industry leaders, catering to your style and requirements while upholding reliability and longevity.

Whether you’re looking to purchase plumbing fixtures, in need of installation services, or hoping for some creative input, MASI Plumbing, Heating & A/C looks forward to working with you. Family owned and operated, we continue to build on 55 years of dedication and expertise. Our advice is based on in-field experience, in-depth training, and a wealth of resources. Whatever your home demands, we’ve got the ideal solution. Our licensed plumbers specialize in new installation, replacement, regular maintenance, and repair of all brands and styles of plumbing fixtures.

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!