
Serving Charlton-city, MA and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Gas furnace and Central A/C system installed. Job was done right at the right price"





+6


Serving Charlton-city, MA and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"Gas furnace and Central A/C system installed. Job was done right at the right price"





+6

Serving Charlton-city, MA and surrounding areas
Approved (Corporate)
In business since 1989
Free estimates
Emergency services offered
"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."





+9

Serving Charlton-city, MA and surrounding areas
Approved (Corporate)
In business since 1989
Free estimates
Emergency services offered
"No invoice transparency at Sila Heating, Cooling, Plumbing, and Electrical. I had an appointment on February 16, 2026, to troubleshoot a no-heat issue on the second floor of my home. I was told the repair would be $1,500. Although hesitant, I agreed to proceed because I needed heat. The repair was completed, I paid $1,524.90, and the technician left. I later realized I had not been provided with an invoice, so I called the company directly at 781 438 4114. The person who answered the phone emailed me an invoice. The invoice listed an HVAC diagnostic fee of $69.00, followed by ?HYD 170,? with no price or itemized breakdown provided. I understand that professional services and parts can incur significant costs, it is unreasonable that the part alone could account for the entire charge without any supporting documentation. I respectfully requested a detailed breakdown of the invoice through multiple phone calls and emails; however, the responses I received were dismissive and failed "





+6

Serving Charlton-city, MA and surrounding areas
Approved
In business since 2000
Free estimates
Warranties offered
"Jeremiah and his crew did a fantastic job. They arrived on time, worked very hard in the small hot attic space, did not waste time and were very professional. Jeremiah explained from start to finish what the job entailed. When the job was completed, Jeremiah explained all that was done and wanted to make sure we were completely satisfied before leaving. They also cleaned up and did not leave a mess. We are very pleased with Green Collar and Jeremiah and his crew!"





+2

Serving Charlton-city, MA and surrounding areas
Approved
In business since 2017
Free estimates
Customers say: Quality work
"Derek was quick to respond to my request for a quote and had our mini split installed within a week. He was friendly, professional, respectful of our property and meticulous. I highly recommend hiring DH Heating and Air Conditioning, you won’t regret it!!"

Serving Charlton-city, MA and surrounding areas
Approved
In business since 1980
Free estimates
Emergency services offered
"Seamless. From the moment of making the appointment with the sales rep to come out to the follow-up phone call, I could not have asked for this installation to go better at a difficult time. They listened to my concerns regarding the look on the outside of the house and the location of units inside. They assisted with all aspects of the Mass Save program making the application process easy. They took care of actual submission of the paperwork where most companies wanted to provide the info to me to then submit."





+22

Serving Charlton-city, MA and surrounding areas
Approved (Corporate)
In business since 2018
Free estimates
Emergency services offered
"They do the job quickly and efficiently, but there is some minor issue, but everything is good."





+19

Serving Charlton-city, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2005
Credit card accepted
Customers say: True professional
"Did a good job. Some confusion on the price they charged me though as it was over a call"





+21

Serving Charlton-city, MA and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
"Top notch vikki had her guys here asap to check my old a/c unit out when the tech said it was gone that Monday the appraiser came out 2 days after that had quote and a week after that install in 1 day . Guys where awesome new what they where doing had it done in no time... highly recommend for any a/c our heating issues awesome people..thank you advance especially vikki she was awesome. "

Serving Charlton-city, MA and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"The guys at Modern Energy did an excellent job, Ryan was VERY responsive and got me the best deal possible. These past two summers showed how beneficial this type of system mini-splits are. Highly recommend!"





+4
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