
Serving Hartford, CT and surrounding areas
Approved
In business since 2010
Free estimates
Customers say: Quality work
"Completed a ton of work and made the house more efficient. High value with the EnergizeCT program."





+5


Serving Hartford, CT and surrounding areas
Approved
In business since 2010
Free estimates
Customers say: Quality work
"Completed a ton of work and made the house more efficient. High value with the EnergizeCT program."





+5

Serving Hartford, CT and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Good reliable company who I’ve dealt with for quite some time. Reasonably priced I’ve had the annual contract with them for a couple of years. I just had my furnace serviced for the winter. Christian did the service. Very pleasant young man knowledgeable "

Serving Hartford, CT and surrounding areas
Approved
Emergency services offered
Small jobs welcome
Credit card accepted
I conduct energy audit tests for homes, whether they are colonial or brand new construction. I can recommend you various forms of weathersealant, thermal wrappings, and storm window techniques, saving you thousands in the form of long-term heat insulation tech-forward solutions.
Serving Hartford, CT and surrounding areas
Approved
In business since 2005
Free estimates
Credit card accepted
"They were on time and timely. As the work was performed I was asked how they were doing at all points of the project. They cleaned up at the end and again I was asked if there was anything else they could do."


Serving Hartford, CT and surrounding areas
Approved
In business since 2021
Free estimates
We pride our company on reliability, great communication, integrity, and quality work. We believe in giving our absolute best in all of our projects, no matter how big or small. You will find us to be competitively priced, with close attention to the details of each and every project. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business, so please ask us for references. \n

Serving Hartford, CT and surrounding areas
In business since 2008
Free estimates
Emergency services offered
"Very Well. William Brown and his crew made great suggestions. Very timely communication. He suggested getting an energy audit which saved me a lot of money."

Serving Hartford, CT and surrounding areas
In business since 2011
Free estimates
Warranties offered
"We had previously worked with Energy Monster on a Mass Save audit and then adding insulation to our house. This time, we had the guys from Energy Monster back again to perform an electrical upgrade on our house (100 to 200 amps) and then install five ductless mini-splits for more efficient heating/cooling than our ancient terrible radiators. Despite dealing with a lot of obstacles -- a heat delay due to several 90 degree days and then tons of rain that prevented them from doing the outside work on the days they wanted -- the whole team was professional and efficient and made the most of the time when the weather finally cooperated! (Plus, my dog loved the whole crew and the loved him back.) It has been such a pleasure to work with Energy Monster as we turn our house into the energy efficient home of our dreams. Thank you!! We can't wait for Energy Monster to come back later this summer to install solar panels next!"

Serving Hartford, CT and surrounding areas
In business since 2008
Free estimates
Warranties offered
"Great team of people, quality work, on time, insulated even more than they said they would, worked tirelessly, and came back 4 months later to fix an issue. I am writing this review because they came back 4 months later, best customer service ever !"

Serving Hartford, CT and surrounding areas
In business since 2009
Free estimates
Emergency services offered
"The service was great. They gave a lot of really helpful suggestions. They replaced our bulbs with low energy bulbs. They put in weather stripping in areas needed as well. They were great to work with. They gave a detailed report on how to lower our energy usage."
Serving Hartford, CT and surrounding areas
In business since 1982
Free estimates
Emergency services offered
"I can clearly see why this company has a solid A rating and has received superior service awards. Commitment to customer service is unparalleled. From the initial inquiry when we first started communicating with them, we were immediately impressed with responsiveness, professionalism, but most importantly......NO PRESSURE sales. In the end, they were also cheaper for the same exact unit we went with compared to other estimates we had received. My husband was so grateful to Quentin when he first came out as he was extremely thorough and informative. This was our first time buying a furnace and he really educated us on the process. Following the initial meeting, we had an energy audit and central air serviced, before finally having the furnace and humidifier installed. Very professional, clean, and polite employees and VERY punctual. **I want to add something else: our furnace was installed on a Thursday a few days before headed into a heat-wave. Over that weekend, my elderly mother's central air unit stopped working. Note that my mother is not a customer of Nutmeg. I called on Monday morning and spoke with a very friendly female about my concerns with my mother being at home with no central air during the heatwave. That call was made at 7:40 am and by 4:00 pm that day, they had fixed her air. I don't know where else you will find service like that. A few days later.......WE received a thank you note from the company/Quentin. Who should be thanking who here ????? Customers (both US and my MOTHER) for life."