Just recently (DEC 2025) had a roof top heat pump installed. They were all very accommodating to…read moreget the work done in a timely fashion. The installation crew were all very respectful in keeping the home clean and Christopher, the team leader was always available for any questions. I finally have heat! I'm very happy with the whole experience from AMC, from the initial visit from Joe to the install crew, and to the office staff. I would highly recommend AMC for any HVAC project.

In our situation, this company was neither competent nor honorable in correcting their mistakes…read more Disregarding the Bosch installation manual, they installed a heat pump system in an inside corner, directly underneath our bedroom windows and less than two feet from our neighbor's bedroom wall. The noise was so objectionable that we couldn't sleep in our bedroom and our neighbor said that it was so loud that they would need to move if it wasn't corrected. Still, it took two years and an appeal to Bosch to get AMS to move the unit, which they did in January to a location of their choosing. Unfortunately, their technicians did not properly prepare the ground under the new location. In April, the rhubarb that had been in that location grew so strongly that it tipped the unit enough that it was in danger of falling over. We secured the unit with a tether and reported the problem. AMS sent the technician, who had installed the unit in that location, to investigate. He admitted that he had noticed something under the new location, but proceeded without removing it, thinking that it wouldn't be an issue. AMS then charged us for the technician's visit and has refused to correct the situation unless we pay for the procedure. The problem remains unresolved and AMS has not responded to our objections. The unit remains tilted. Had I seen the many negative reviews on this company, we would never have contracted with them for this $30,000+ project. Hopefully this review will help others to avoid our mistake.

Felipe was amazing to work with, explained things really well, came when he said he would and got…read morethe job done on time!

contacted them for a quote, was promised a certain time window but no one showed up. the owner…read morecalled me and told me the plumber would be running hr and a half behind. we needed to reschedule which is fine but the next day still no one show up. this time i did not get any call from owner. this is all just in the quote process. i would have trust issues with them actually going out to do the work if i getting a simple quote is giving me anxiety not knowing if they are going to come or not.

we were referred to Colonial HVAC by a friend in Acton as we just purchased a cottage in Concord…read more We were surprised how easy and accommodating they were and have now had them back for 3 different projects. They are a smaller company and the owner Tom did the first service call. His tech and his awesome helper, Kyle and Jay, were equally outstanding. I could go on with superlatives, but I felt so confident and comfortable with the quality and value of the work that I would not hesitate to recommend this company.

I had an appointment scheduled for them to come over, review our needs and give us a proposal…read more Technician never showed, never called. Went elsewhere.

Scott provides exceptional service at a reasonable price! I have already recommended his quality…read moreservice a few times to others! I have had him do 2 projects for me now and both were fairly priced and went very smoothly. SKIP THE OVERPRICED big names in the game and call Scott, you wont be dissatisfied.

Scott got in touch with me the same day I left a message. He came by my house explained two options…read moreand quoted prices. It was a small job (pipe replace, new flange and reset a toilet) but he took it seriously and accommodated my schedule to get it done. The work was done well and efficiently by Scott, his son, and Luis. Also worth mentioning, his price was substantially less than what I was quoted by one of the big local plumbing companies. Overall an excellent experience, I have a new plumber. Will absolutely use him in the future and fully recommend him to anyone needing plumbing work.

After dealing with several private-equity backed HVAC companies that felt more like high-pressure…read morecar dealerships, we were relieved when Gill from Warrior Heating and Cooling came by. From the start, he was honest, thorough, and transparent. He took the time to explain everything clearly and never once tried to upsell us on things we didn't need. We decided to replace both our AC system and gas furnace (after the furnace died on the morning of the first blizzard!) with new American Standard units, and Gill gave us a very fair and reasonable price. While Warrior may not have had "7 trucks ready to finish the job in one day" like some of the larger companies promised, Gill and his team focused on doing the work the right way -- with care, professionalism, and attention to detail. What really stood out was the customer service. Gill even helped us install and set up a new smart thermostat I had purchased myself. It's rare these days to find contractors who are both skilled and genuinely trustworthy. We'll absolutely be calling Gill again for any future HVAC needs, and we highly recommend Warrior Heating and Cooling!

Very professional and honest. Helped with cleaning and descaling , explained everything clearly…read morewithout pushing unnecessary replacement. Would definitely use again!

M & M has helped me out several times over the years, the first to address a failed furnace *just*…read morebefore my mother's Thanksgiving arrival. He even called on Thanksgiving Day to ensure everything was satisfactory. A few years ago, I told him the 20-year-old AC unit finally needed to be replaced ... he repaired it for about $200; he could have easily sold me a new unit. This year, I choose to replace both AC units (24+ and 15+ years old) before they ceased to function when summer arrived, and called M&M. The base needed to be rebuilt, and they arranged for that, as well as installation of the new units. They always respond quickly and the work is impeccable, and I feel I can trust their honesty.

Our central a/c stopped blowing cold air last week - a terrible situation for a hot summer with a…read morenewborn! Called M&M in the morning and they sent out 2 techs within a few hours. They diagnosed the problem quickly and we were back up and running that afternoon. Great service!

Father and son team are great and personable. They were on time and very efficient. They left no…read moreloose ends.

John gave me a reasonable quote and came by quickly and replaced my water heater. I highly…read morerecommend Sostilio and Sons!

We've had Belli out a few times over the years, and I can't say I understand all the positive…read morereviews. At the first visit we were told by an employee that we would have to replace our garbage disposal, which turned out not to be correct. At our second call, the issue was not resolved (by Chris himself), and he had to send an employee out again the next day. Would not have been a big deal but on our third try with Belli, they refused to go out and get the needed part. That's standard for a plumber. But suddenly they had a new policy that they would not make any purchases because supposedly another client was unhappy with a prior purchase. They refused to listen when I told them I didn't care what they purchased, and Chris never bothered to respond to my email. Needless to say, we immediately hired another plumber who came right out (after purchasing the part) and did a great job, and this was our last attempt to work with Belli.

Two times I've used Belli and both times we were very satisfied! They are quick honest and…read morereliable. The work done is professional and they explain everything to you. There was an issue with one of our services. We needed a new water heater. They put me on the schedule as early as they could and even called me a day earlier than scheduled to get me in. Unfortunately there was an issue with the tank after the install. Not anything they did wrong just a faulty piece. They busted their butts to make sure they got the part they needed from the manufacturers faster than they offered and came back right away to make it work. No delaying saying they had to wait. Great experience and will definitely be using them for all our needs!

Viking has always been very helpful and responsive. The technicians are professional and…read moreknowledgeable, and Lars will always take the time to explain what our options are for service.

Needed general maintenance for HVAC system. Ryan arrived on time was friendly and knowledgeable…read more Answered any questions, concerns and performed the job in a timely manner. Best service technicians in the area by far.

We got estimates for an oil furnace replacement and heat pump to replace our AC condenser from 5…read morecompanies. Estimates ranged from $30K to $19K. We chose the Knight system for $19K and it was installed in 1 day. They also processed the partial home rebate to get almost a $6K rebate from MassSave. We also switched the Knight for out heating oil supplier - it was a little more expensive than our old COD supplier, but it includes a discounted service contract with free cleanings - something we paid $300 from our old COD oil company.

We sold the house that was getting deliveries from Knight fuel and cancelled (twice now) future…read moreservices. They received a final check from the realtor but never stopped billing us or apparently, delivering fuel, even after at least 6 months. We've emailed and called with no success at stopping. It's basically harassment at this point because they will not be receiving any other payments.