You can rely on DMI for all of your heating, cooling, and plumbing needs. From air-conditioning installations, heating services, and plumbing repairs, we provide quality service for both residential and commercial properties. We work on all makes and models.  

DMI, LLC is a customer focused company that was started in 1991. We employ highly trained people whose goal is to make our company the best service company in the HVAC Business. We take our responsibility very seriously when you place your trust in us. Our entire company works hard to make your experience with us hassle-free and enjoyable. We pledge to always tell you upfront what your cost will be to complete your job correctly. We make it a point to go over any details or limitations of the proposed project that will affect your enjoyment of the end result. You are told exactly what to expect up front.

We specialize in complete comfort systems for owners of existing homes and buildings just like yours. Also provided is a great service department for either your home or your business. On an emergency basis, our service technicians are available 24/7/365! Just call (603) 882-4300.

Testimonial
"I was pleasantly surprised at the way they answered the phone. It sets them apart from other companies.
They did make me smile!" -Cathy, Milford NH

Areas We Service

Amherst - Brookline - Hollis - Hudson - Litchfield - Milford - Merrimack - Mount Vernon - Nashua - Bedford - Goffstown - Hooksett - Manchester - New Boston - Weare - Derry - Londonderry - Pelham - Plaistow - Salem - Windham - Surrounding Communities

DMI
5 Northern Boulevard, # 5
Amherst, New Hampshire 03031
Phone: (603) 882-4300
Fax: (603) 882-7729
E-mail: dmillc@myfairpoint.net

Affiliations and Certifications:
Licensed and Insured
EPA
Emergency Service Available

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