Due to the field of work I do, I am a perfectionist for detailed work from those that I hire. The…read moreguys from Energy Monster did a fabulous job on my 4kw LG system. Installers were Tim & Lyle. All conduit was run beautifully and the all black LG panels look great. All work was done in one day! My sales guy Kevin definitely was knowledgeable about his recommendation and placement. Al in all, this was a really good experience with zero issues at all.

We were told that we did not have any insulation in our home at our energy assessment performed by…read moreBrian. Because of the style of our house, we were also told in no uncertain terms that the insulation would have to be put in from the interior of the home. So we spent weeks preparing by pulling everything off the walls and packing up my husband's small collectibles and moving all of the furniture in every room to the center. And we had to remove the beautiful real wood paneling in our dining room so that they wouldn't drill into it. It's the good stuff, not the cheesy 70s stuff. When the insulation company came, they drilled holes in four different rooms. Every room had insulation. We then had to patch and paint every hole and put everything back where it came from. It was a horrible experience with very little in the way of an apology from the company. When the team came to do the insulation and discovered that it wasn't needed, they asked who had done the evaluation, and when we said Brian, they said that that made sense. Apparently this isn't the first time that something like this has happened to someone. That is shameful! They did nothing to help our energy consumption.

I would like to thank Energy Geeks for doing an outstanding job insulating my attic as they were…read morevery professional and courteous. Foreman Michael, Casey was very hands-on and directed everyone to satisfy all my needs above and beyond. We have already witnessed significant positive results since they performed the job. I would like to thank them for their outstanding work, and would recommend them to anyone.

I would highly recommend Energy Geeks. They (a team of three) added insulation to the attic and…read moreseveral weatherization measures. They arrived on time, were very personable, answered my questions and did a great job.

AI agent wasted my time, booked appointment on a holiday. Did not disclose they were an AI agent…read more Calling on the phone yielded another AI agent

Endless Energy installed a Fujitsu heat pump system in my home in October 2022 through the Mass…read moreSave program, and it has never worked properly since day one. From the start, the system constantly shut down and threw error codes. We were actually told by their team that shutting off power to our entire house for 30+ minutes to reset the system was an acceptable solution--something we had to do multiple times per week (and sometimes multiple times per day). That alone should have been a huge red flag. Winters were even worse. We haven't been able to use it at all during the coldest months and were told that just happens in New England winters. We've been forced to rely heavily on expensive oil heat while still paying for this system. They attempted a few fixes over the first couple years, including installing a surge protector, but nothing ever solved the issue. The system continued to fail repeatedly and has now been completely unusable since December 2025. We recently had an independent electrician evaluate it, working directly with Fujitsu, and the system now needs a new compressor and control board. Even more concerning, it appears likely that the root issue may stem from the original installation or wiring--something that was questionable from the start. The installers often seemed inexperienced and had to call others for guidance several times during the install. To make matters worse, Endless Energy now wants to charge us just to come out and diagnose a system they installed that has never worked correctly. They are apparently under new ownership with significant staff turnover, and at this point have been completely unwilling to take responsibility or meaningfully help resolve the situation. After 3+ years of issues, missed work for service calls, ongoing loan payments, and thousands spent on backup heating, I have zero confidence in their ability to fix this. I would strongly caution anyone considering using Endless Energy.

Great Service! Green…read moreCollar was recommended to us by another company that was unavailable at the time, which I think says something about them that they're even recommended by those in their field. They did our Mass Save insulation and were efficient, professional and courteous to us and our home and super helpful with tips that we as homeowners could do ourselves. Definitely will use them again in the future as we update our home. Thanks for the great work!!

Connected with Green Collar through Angi. Very responsive, scheduled an appointment that evening…read morevia text message. Today was the day of the appointment, and the tech did not show. I messaged the same person that booked the appointment, and first they said there was a mix up and the appointment wasn't scheduled, and then they stated that the job was cancelled because the scope was not something they supported. No call to follow up on the cancellation, no messages. I had to take time off work to be here for the appointment, and I had to call to find out where the tech was and what happened to the appointment. Scheduling is one of the most basic expectations of a company that provides services like these, and this experience was horrible. Get your act together and stop wasting my time.

I had these guys reinsulate my home. They were reasonably priced, on time, and focused on doing…read moreexcellent work. They had great suggestions and ultimately over-delivered. There were no surprises and they completed the work in the time they had estimated. Recommend.

Shoddy work. Unprofessional staff. overpriced . Bad customer service. Unknowledable about their…read moreproducts

Do NOT use them for WAP low income. All they care about is making money off putting useless hvac…read morestuff in house that did not need it. They did nothing to help me at all. All they did was screw me over and try to make money for themselves. It would have ended up costing me money to fix all the cosmetic problems they left in my house after they got what they wanted out of me. Thanks for nothing!!!!!!!!!

I just don't understand why folks don't even bother to reply to your inquiries…read more I asked for a quote from them and no one replies. Another crappy business.

Rafael and his team completed a number of insulation and attic ventilation services at our home…read more All work was completed on time and as contracted. The crew was neat, courteous and efficient. Everything was completed without a hitch. Nice job!

They came as part of the Mass Save program, but provided zero value. Instead of properly assessing…read moreour home's insulation and energy needs, which they stated was beyond their technical skill, they just tried to upsell air-duct cleaning and sealing at triple the price of other vendors. Our questions went completely unanswered, and they capped off the visit with an absurd $18,000 quote for air sealing. Their participation in Mass Save borders on a scam. If you're scheduling an audit, I recommend contacting Mass Save directly to request a different vendor.

NEGATIVE 1,000 STARS…read more I hired HomeWorks Energy for attic insulation through Mass Save. I paid nearly $3,000 out of pocket -- while HomeWorks reportedly billed the state program roughly $16,000 for the same job. Draw your own conclusions about where that gap goes. The crew did not properly seal or protect the area they used to access my attic. While spraying insulation foam, they let a can explode, coating a leather messenger bag that my late father gave me shortly before he passed away. It's now ruined -- foam soaked into the leather and fabric strap, and no amount of cleaning has restored it. On top of that, one of the crew members' behavior raised serious safety concerns. He spent much of the appointment with his face covered, sitting in his running vehicle, and locked in my bathroom. He repeatedly drank Gatorade and had to lean against the truck to steady himself. He then bolted out of the house and ran head-first at full speed toward the HomeWorks truck parked on my street, nearly colliding with it. I'm not sure if he had a hard night out before visiting my home that morning, but he never should have been dispatched to a customer's home in that condition, with my family present. When I raised the damage to my father's bag, HomeWorks' "resolution" was to offer me the value of a refurbished/used bag from an outlet -- not a new one, despite this being a gift I received brand new. I've asked for a full refund of my co-pay, retail replacement value, and a formal apology. I have also repeatedly asked -- by email and by phone, on multiple occasions -- to be connected with the owner or any senior member of management. Every request has been refused. A company that stonewalls customers from reaching anyone above a customer service rep, especially after property damage and a safety incident, is hiding behind its front-line staff rather than taking accountability. If you're considering Mass Save's insulation program, ask specifically NOT to be assigned HomeWorks Energy. Based on my experience, this company should not be a state-approved vendor, and I'd urge Mass Save and the DPU to reconsider this relationship. Save yourself the headache and go elsewhere.

High pressure sales pitch to buy an overpriced heat pump which is 'rebated' through Mass-Save…read more Contractors are pocketing it obviously and the ratepayers are eating it. Don't plan on saving ANY money unless you have oil or electric baseboard and you may need a new 200-A electrical panel to accommodate the heat pump load. Total spend was proposed by HomeWorks at $38,000 for a system that costs $6000 through Lowes (Googled it) and two days to install, with no energy savings promised. Hard pass.

We contacted Revise through Mass Save. Matt Gill, home energy advisor, came in for the original…read moreenergy audit. Matt called us prior to his visit with expected ETA and was on time. He completed the audit and went over all of his findings thoroughly. He explained the improvements our home needed to be more energy efficient as well as programs that we might be eligible for (interest free loans, no cost updates and general tips to improve energy efficiency.) The next step was to get our attic more insulation and our bathroom exhaust. Younes and Hector arrived at our home as scheduled for the improvements (again ETA was communicated and they were precisely on time.) They were professional and respectful; Younes and Hector communicated every step they were doing while making sure that they kept their work station clean (they left without leaving a trace. When I need help with cooling or heating issues, Revise will be the first one I contact!

Revise has changed my aspect on fast and accurate worksmanship Benjamin and Johnathan are the best…read moreinstallation technicians I have ever encountered. Highly recommend to everyone.