
Serving Derry, NH and surrounding areas
Approved
In business since 2019
Free estimates
Small jobs welcome
"on time, reasonable price for annual oil furnace survice"





+4


Serving Derry, NH and surrounding areas
Approved
In business since 2019
Free estimates
Small jobs welcome
"on time, reasonable price for annual oil furnace survice"





+4

Serving Derry, NH and surrounding areas
Approved
In business since 1984
Free estimates
Emergency services offered
"We hired this company to install a Rinnai tankless hot water heater and three Fujitsu tuckless mini split heat pumps for our air conditioning and heating needs. We also purchased their two year Preventive Maintenance plan for our furnace. Their workmanship is very professional and all work was completed in accordance to our schedule. Their pricing was very competitive and most reasonable. I especially appreciated the crews sensitivity towards keeping my floors clean while they were going back and forth from inside to outside; all the worksites within our home were left spotless as well as the floors. Thanks to Saul and the men at Revolution..a job well done. See you in the Fall for our PM Contract."

Serving Derry, NH and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"Very professional and experienced and friendly I talk to them this morning they came and fix my furnace today I will definitely call them again"





+19

Serving Derry, NH and surrounding areas
Approved
In business since 1989
Free estimates
Warranties offered
"Dale is professional and reliable. After speaking with Dale on the phone about 15 minutes, I knew he was the guy to do my project. He is very knowledgeable, and speaks concisely to his clients. He is a busy fellow due to his high quality work, yet still affords his clients with his service and talent for HVAC bar none. Thank you Dale for installing our new Daikin unit. It works great and has made the air quality in our home ideal!! Diana & Lance"


Serving Derry, NH and surrounding areas
Approved
In business since 2015
Free estimates
Credit card accepted
"The water pump for my over 16 year old central air conditioner stopped working and, as a result, I discovered water in my basement. I searched Home Advisor for a company to fix the problemand selected NSHEC based on customer reviews. I was able to schedule a service call online for that afternoon, then had a few questions about the issue and repair that I wanted answered before having them come out. I called and left a message, they returned my call within minutes, discussed my issue, explained what the possible issue was, how long it would take to fix it as well as the estimated cost of the repair. The technician, I believe his name is Jake, arrived on time and had the part on his truck. He quickly made the repair, explained what he did and that it is common for the these pumps to eventually stop working. If that should happen again in the future, the new pump was wired to shut down the ac and getting water in the basement would now be averted. The final cost was a few dollars more than the phone estimate, service was very prompt, the technician knowledgeable, quick, very pleasant and answered all of my questions before and after the repair. I wouldn't hesitate to call NSHEC again should another issue arise in the future."





+14

Serving Derry, NH and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Recently had Kyle's cooling and heating out to replace my furnace and central Ac system. Could not have been happier with the process from getting a quote for replacement to scheduling to the install itself. Kyle was very informative on any questions I had and I will certainly be using this company to perform the yearly service on my new hvac system. Highly recommend!"


Serving Derry, NH and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"It went very well. They had a good price. They got everything done in one day. The workers were very polite and respectful in my property. I highly recommend them to all."





Serving Derry, NH and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Responded very quickly and addressed the needs I had. Very informative as well."





+14
Serving Derry, NH and surrounding areas
Approved
In business since 1991
Free estimates
Emergency services offered
"did not hire them simply because the contractor i WAS going to hire said he could fix the hot water exhaust vent pipe . hot water heater did not need to be replaced . the plumbing co called back quickly and i explained the situation !"

Serving Derry, NH and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Credit card accepted
"Arete’s team was incredibly professional and efficient. They completed my HVAC job in a timely manner and beat competitor’s pricing. Their team was very respectful of my home and even wiped the floor after each day’s work. Every member of the team was kind and respectful. Will certainly work with them again in the future for any of my HVAC/electrical needs."
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