"Guy was hands down the best HVAC person we have ever had help us in Boston. Totally transparent, professional, easy to work with. If you need help, I would recommend asking for Guy to come out if possible."

"Peter and Mark were very professional. I needed to replace the HVAC dampers and the communication with Peter was excellent and we had all questions answered ahead of time so we didnt have any last minute surprises. They showed up on time and installed the dampers and the HVAC control panel. Very thorough and clean with their work. I've already recommended them to my neighbors."

"Joe, the AirCo sales representative, was very professional. He actually asked for my feedback on priorities for a new boiler. This was important to me because the boiler sits below our family room, and the noise level of the boiler was as issue. His proposals listed several boiler options, based on heating efficiency, which were competitively priced. The installation was run by Steve, who was able to fit in the installation the next week. Steve, and his crews, were punctual and courteous, and the installation went smoothly. It's only been a week, but I am very pleased with my Bosch boiler, the quality of the work, the price paid, and the timeliness of the installation."

"From receiving the quote to the installation and servicing NETR has been extremely professional and great to work with on this renovation project. The installation went very smoothly and every person on their team had a lot of experience. Further, the team was able to solve a number of tricky problems with our installation (such as running the electrical behind the walls, drilling a hole through the roof for the pipe, concealing the pump in the back of the closet). The installation happened on time and on schedule. I would highly recommend them to anyone looking for HVAC services at home."

"Diagnosis and repair were straightforward and the talented Mike, who has done other great work for us on our ACs, had a replacement pump in his truck. Swapped over in under an hour. Cost of the repair was quite high, mainly due to very high price they charged for the pump. A Taco pump that I could buy for $175 was priced on this repair at more than $500. I get that it was an urgent situation and I’m happy to pay reasonably for the response but that mark-up bothered me. I called the office, had a long talk with the owner; sadly, she offered no consideration at all. Yes, it’s hard to find and keep skilled techs, but now seems that most HVAC firms have a business model like a car dealer’s service dept, far more corporate, less flexible or customer-considerate."

"Great guy, very knowledgeable and delivers what he promises. I wanted to replace three boilers that showed severe carbon build-up on the units. Jeff explained the carbon build-up was do to lack of make up air being delivered to the space. Even through I had duct work bringing fresh air into the space it was not sufficient. Jeff recommended high-efficiency combo heater / water units with direct vents and introduced me to MassSave for 0% loan and rebates for each unit. I had a difficult situation with a multi-family home trying to replace three boilers and three water heaters simultaneously with cold weather starting to settle in and occupied units. Obviously I didn't want to leave my tenants without heat or hot water. Jeff formulated a plan that would minimize the down time I would be without both, he work diligently to execute that plan and he delivered as promised. In addition he was extremely helpful coordinating with National Grid to ensure they did their part and didn't cause any delays. If your looking for a heating contractor with integrity, is knowledgeable, listens to your concerns, explains what he's doing and why, and delivers on his promises, look no further than Jeff Griffin."

"Fantastic. In and out in within 2 hours. Cost $15,000 less than another Angie's List HVAC service person quoted me."

We are a dedicated air quality company committed to delivering exceptional service and professionalism to our valued customers. Our skilled technicians are trained in the latest air duct and dryer vent cleaning techniques. We serve both commercial and residential properties, improving indoor air quality, enhancing HVAC efficiency, and helping lower energy costs. Safety is our top priority, especially in dryer vent cleaning, where proper maintenance plays a critical role in preventing fire hazards. By staying updated with industry advancements, we deliver reliable and effective solutions tailored to each customer’s unique needs.

"Duct Kings came out quickly and spent one day thoroughly cleaning the vents and scheduled the aero-seal for another day. During the process they noticed an issue with their software and rather than ignoring it and continuing the work, they stopped and rescheduled to come back and finish when the equipment was working properly. They were thorough, respectful of my home (and my pets), and wonderful to work with. I highly recommend Duct Kings!!"

"Chris was prompt and reliable. Came when he said he would. Completed a basic HVAC servicing and cleaning. Left me a report of his work performed. Would recommend."