HVAC Contractor
5 Northern Blvd Ste 5 Amherst, NH 03031
Today: 7:30 AM to 3:30 PM
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
by Quinton on 6/24/2021
out of 5 starsby Vitaly on 5/6/2021
out of 5 starsby Eshe on 8/22/2021
out of 5 starsby Lando on 4/10/2021
out of 5 starsby Rosa on 2/20/2021
out of 5 starsby Artturi on 8/5/2021
out of 5 starsby Gabriel on 1/25/2021
out of 5 starsby Praise on 10/3/2021
out of 5 starsby gomez on 7/10/2021
out of 5 starsby Heimirich on 5/22/2021
out of 5 starsby Heimirich on 5/22/2021
out of 5 starsby Petur on 2/26/2021
out of 5 starsby Amita on 11/4/2021
out of 5 starsby brockton on 6/23/2021
out of 5 starsby Amanda on 10/9/2021
out of 5 starsVery satisfied, keep up your good work by Carl S on 10/13/2015 via Customer Lobby
DMI LLC installed our furnace and ACs many years ago. I think we were one of their first customers. They still come by to service them and our tank-less water heater. We've had very little problems with any of the units and they keeping…
I'm very satisfied and pleased with the work they did! by Mike H on 10/1/2015 via Customer Lobby
I'm very satisfied with the heating and cooling system DMI LLC installed for me. The service guys were prompt, efficient, explained everything, but most importantly, were conscientious. This happened about three months ago, and everything…
What you get with DMI LLC is: peace of mind. by Erline T on 12/13/2013 via Customer Lobby
I use DMI LLC because they are a local company, and they do a good job at keeping my furnace working. I have them come once a year. They are quick to respond when I call them and always very thorough. They usually send the same person,…
They did a great job, professional, neat and prompt. by Kathy F on 12/5/2013 via Customer Lobby
Our furnace was DOA and they got a clear estimate to us quickly so we could schedule the new install. The new furnace is working very well! RESPONSE FROM DMI LLC: Thank you Kathy! We so appreciate you!
Customer-oriented company. Quality work. Professional service. by David A on 12/3/2013 via Customer Lobby
I have had nothing but good experiences with DMI LLC. I first met Wayne Dugas through my contractor who was rebuilding my two million dollar lake house that I had lost two years ago. He recommended Wayne of DMI LLC to install a water…
Friendly and responsive by Tom I on 9/18/2013 via Customer Lobby
DMI mechanical contractor provided plumbing and heating work for me on a big remodel I did last year. They did a nice job. I enjoyed working with them. There was one mistake with a return air duct that was undersized, but otherwise…
I'll give them good ratings so far! by Michael O on 8/21/2013 via Customer Lobby
I'm still not sure how the system I got from DMI LLC will work come wintertime. Based off of what I know right now, though, it's all working fine. They replaced an old furnace that was in the attic of my commercial building. It was a good…
DMI has great personal service. by Mark B on 8/9/2013 via Customer Lobby
DMI LLC does all the HVAC and refrigeration work on all my buildings. I have three facilities that total about 350,000 square feet. I've been using them there for ten years. They do good quality work. They show up when they say they will…
Positive and professional. by Diane N on 3/21/2013 via Customer Lobby
This was the only job DMI LLC has done for me. Before this, I had never heard about them and didn't know anything about them. I think I found them through an online search. Then I checked out their website. I was very impressed with their…
Outstanding service by Jeff W on 3/16/2012 via Customer Lobby
I used DMI LLC because they are local. I found them to be extremely honest and have very fair prices. They were excellent. I highly recommend them. RESPONSE FROM DMI LLC: Thank you Mr. Wolf! It was a pleasure speaking to you on the…
They have been really good to me for a long time. by Jane S on 10/3/2011 via Customer Lobby
DMI has taken care of my air conditioner, and in particular my furnace, for a long time. I bought a new furnace from them this past year and they were great! They came out, put it in, told me all about what discounts I could take and…
Air conditioner service by thomas C on 6/21/2011 via Customer Lobby
I followed up on a reminder card for annual service. Michelle answered the phone and did a great job. Donny arrived as scheduled and completed the work. He then took a bit of time to dicuss my 21 year old unit and advised me to get an…
Excellent job by Mike A on 5/4/2011 via Customer Lobby
Last year we replaced our 22-year-old propane furnace with a high-efficiency model. They helped us chose the right product, installed it flawlessly, and answered all our questions patiently and courteously. The furnace is outstanding --…
They made me smile. by Renee P on 4/20/2011 via Customer Lobby
DMI put in a major central air conditioning system for me. They were quick, they were clean and they did an excellent job. I have no complaints at all. Renee Pelletier
DMI is better than smooth! They're exemplary! by Robert C on 4/19/2011 via Customer Lobby
We totally enjoyed our experience with DMI. From the salespeople to the people that come in to do the work, to the clean-up crew, every single person was very nice and treated us with respect. I don't lie to people, if a meal is good,…
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