Get matched with top heating and air conditioning pros in Groton, MA

"I have been using Druziako HVAC since I bought my house in 1997. They are excellent to work with consistently provide the highest level of service. I would highly recommend them to anyone in need of HVAC services."

"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."

"Joyce installed the system with new duct work, zoning, dampers, new furnace, A/C, and thermostats. They knew exactly what they were doing, installing the system as described and on time. During the 4 days of installation, management dropped by to make sure it was going well. They had all the right equipment and everything went as planned. No snags. These guys are real pros. I'd recommend them to anyone. I love my new Lennox HVAC system. My home finally is finally comfortable. The new system is also whisper quiet."

"I looked at a number of different options and they had the best pricing and they also specialize in just doing central air. So they were also sort of a plumber and gas fitter, anything like that, and so they really specialized in what I was looking for. So that is sort of their core business. They were good and they did a very nice, clean job. The house was built in 1901 and so they did a great job of removing the old radiators and radiant based heat systems and replacing it with a new central air set up."

"My central AC unit has been broken for several years. intermittently working during hot summers. I've had several HVAC companies come to diagnose and all of them told me different things: replace the whole system, new lines, etc. potentially costing tens of thousands of dollars. So I decided to troubleshoot by myself and pinpointed the issue: the filter dryer needed to be replaced. No company wanted to do this small job. I called Emerald HVAC and told them about my issue, they sent in José, who diagnosed the issue to be what I said. He replaced the filter dryer and the AC unit works perfectly now after several years! In short, Emerald HVAC will be my first choice for any HVAC work in the future. They are honest, professional, and reasonably priced. I recommend them without reservation!"

"Very clean, professional and efficient. Explained the whole process and what steps to be taken to preform P.M. s on our HVAC system. We will have him back in six months for follow up maintenance."

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.

"Amazing service! very knowledgeable, clean work and super respectful! if you find yourself needing any help when it comes to your heating or Air Conditioning system, call Keenan without a doubt."

"The two-day process began with duct cleaning by a very conscientious Randy who took pictures showing before and after. The Aeroseal process followed the next day with Randy and his supervisor. These two guys were great. We start out with 5 out of 5 stars! Aeroseal Process, developed by the D.O.E., seals ductwork gaps up to 5/8". There was little odor. The aerosol permeated our home with a thick fog. Soon every smoke alarm in the house was activated, but our team were surprisingly well-practiced in disarming detectors. Good thing I remembered to call our security alarm company. We opened windows and doors, thankful it was a mild midwinter day. The two 3'X3' active filtering units set up beforehand in our living space looked impressive but were of little help. The house needed cleaning afterward. We were not forewarned about any of this. Minus 1 star. All Aeroseal air duct certified technicians are qualified to run a program made by the Environmental Protection Agency (EPA) called ?Duct Investor?. Duct Investor takes a comprehensive list of variables and provides a homeowner with the best available estimate of what they should realize in cost savings. I asked specifically for this data on several occasions. I was told my request went to a different supervisor. I called back. No follow-up. Nothing. Minus one star. So, was it worth $1500.00? According to our heating fuel company, and BEFORE the Aeroseal Process, we had already managed to reduce our heating energy usage on our own by 17% when compared with other homes our size in our area. The Aeroseal Process increased that number by an additional 12%. Energy is cheaper right now and without any hard central A/C data, and if energy costs remain the same, we estimate it would take 6-7 years to save enough energy to have this service pay for itself.
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"i called to have my HVAC duct work cleaned. They asked a few questions, gave me a very reasonable quote, and sent Verne out next day. I got tired just watching him do a thorough job for 3+ hours. I couldn't be happier. If you are debating who to hire just stop and call them."