Callahan has serviced our heating and A/C for over ten years, keeping older systems running well at reasonable cost. Office is responsive, technicians are prompt, cost seems reasonable. It feels good to know I can trust to have problems solved expeditiously. read more

I had my annual boiler checkup done today, and the young man that serviced it was very thorough and knowledgeable. He was also very polite, and answered all my questions. Callahan installed my A/C back in 2000, and it's still going strong 24 years later. I'll definitely call them early next year to service it, hopefully for another year. read more

The washing machine pump constantly gets clogged now all the time. The sound it makes shakes the PVC pipes and the whole house so I know it is clogged. This is also underneath my bedroom. MY GOD the sound. It is like living above a garage now. Why did AC Callahan never tell me that moving my washing machine would entail my taking care of a washing machine pump forever (well they only last 5 years with 1 year warranty)? When the water flows, electric is right next door which is not good. They somehow removed the pipe from inside the wall when they moved the machine, so now I need to get the wall cut open and all possibly for naught to the extent the piping leads into a dry well. I've lived in Russia, England, Sweden and other places and never had to worry about my washing machine like this. Why did this have to happen to me? Why would a company be so deceitful and underhanded? They did this work March 2023. I lost my mother 3 mos later suddenly. What a year and it is still going on. The positive reviews of this company make me sick frankly as I know what they're up to. Other providers have confirmed they are shady. Other companies/competitors have confirmed this company just wants to milk every cent they can and leave things worse than they were before. read more

A friend recommended Callahan and I'm so glad she did! The technician came on tine and gave perfect advice and maintenance which was surprisingly reasonable. Great service. read more

Our boiler ignition kept restarting and we didn't know why. Called Merrimack Valley Plumbing and their tech blamed the switches and control board and wanted to replace them for a couple of grand. Callahan's techs measured air flow, troubleshooted the flue pipe, impeller, found and dislodged a blockage (burnt birds nest deep in the vent) within the hour. Ask for Phil. Honest work for honest price. Would do business again. read more

After my three strikes review I received a call from Katie, one of the owners. She was very surprised & upset with my experiences & said that she would look into it because it is & has always been a family business that they are proud of owning. I appreciated that call & decided to stay with them since we had such a longstanding relationship. I had a service call today that was promptly taken care of...so I'm back. read more

Had my summer a/c tune-up with Callahan A/C & tech, Daniel, was thorough in his service of our system & spent the time & effort to make sure everything was operating smoothly. He was detailed & professional. Will utilize their services again. Tom - North Andover, MA read more

Callahan AC installed an energy efficient multi zone Mini split in our mountain home where tradition ductwork was not be possible . 100% Heat efficient to -20* and ability to control from an app meaning when I get there the home will be at a great temperature. Excited to have Cool Air in the Summers and Hoping to save a bundle on Heat in the winters read more

Callahan A/C & Heating Services - Accessories include an app for controlling heat and air conditioning when home or when your not at home. - Heating & Air Conditioning/HVAC Near Me - North Andover, Massachusetts

See all

We had Callahan install a gas boiler about 10 years ago. We've also called them for our Central Air unit, actually 3 years ago to install a capacitor because we weren't getting any cold air. All was fine. Until today. My husband thinks the capacitor needs replacing again. The unit is not cooling the house. Could be the capacitor again, not sure, but we called Callahan for it. Well, the woman said they don't have us in their system. ??? My husband said "I have the receipts for any work you've done at our house. She said, "Well, we don't." Hellooooooo???? Well, they will NEVER get our business again. Just be forewarned. Callahan A/C & Heating is not very reputable. read more

In July I called Callahan to make an appointment for an annual check of my gas-fired steam boiler, which they installed a few years ago ($7,500). I had to wait almost five months because I was told they have to honor contracts that are a priority. Spending $7,500 doesn't make a person a priority? The appointment was for this morning at 8:00 a.m. and when I called yesterday to confirm the woman who answered the phone (I think she's an owner) told me the technician would be late because he has to take care of his new baby. It's great he has a new baby but why do I have to sit around waiting for him to take care of a baby? I had to get to work so I called and canceled the appointment. This business is run for the convenience and benefit of the employees and not for the benefit of the customers. They have no shame in taking money and providing little or no service because they have no business skills and care only about themselves. Maggie and Sue answer the phone and apparently inherited the business so you know what kind of service they provide. Go ANYWHERE but Callahan for your heating and cooling needs. read more

Did an outstanding job from coming to assess the scope of work for a replacement water heater install, an accurate quote and the quick efficient and professional install and removal of the old unit. Very pleased! read more

Callahan completed a full replacement of our 25+ year old home air conditioning system with a new Carrier Infinity system. Kevin who dealt with the estimate and quoting process came out as scheduled and provided a detailed quote via email within a few hours. He was also quite helpful answering questions about options we were considering and the pros/cons of each. Never felt any sales pressure either, and he honestly talked us down from pursuing a much more expensive heat pump option because the ROI wouldn't be worth it. Many other providers likely would've just taken the extra ~$7k in sales. The install team arrived on time on the day scheduled and completed the work in approximately 4 hours, which was impressive. Everything went as planned and we're very happy with the new system. It's late October so we haven't been able to really use it beyond a quick test, but it's noticeably much quieter than our old system, and we're looking forward to the increased eco-efficiency next summer. The team also did a good job of cleaning up any mess left behind and answering any questions we had before leaving. I'm glad we opted to go with Callahan and would definitely recommend them. read more

We called upon Callahan to install central AC. The whole team was terrific. Matt was super professional in the initial meeting and project plan. John and Edwin worked tirelessly for three days to install all of the ductwork. And they were kind enough to take the old window units out of the attic for me! Kevin installed the condenser and even saved one of my favorite perennial plants that was going to be covered by the condenser pad by digging it up (in the snow!) I also liked their choice of the electrical subcontractor, David Electric, who did an outstanding job. It is 32 degrees out today, but I will absolutely appreciate the AC on a hot and humid summer day. Thank you to all of you! read more

Callahan A/C & Heating Services installed central a/c in my home last week and my husband and I could not be happier!!! What an excellent job they did. Matt came to our house and gave us a reasonable estimate in February and booked our job for the middle of March. Matt was extremely knowledgeable and explained everything in detail and answered all of our questions. The team of Kevin, Jason and Dan who installed our system were extremely professional. All work was completed in 2 days as promised. I was so impressed with how neat they were. They left my house spotless and you wouldn't know that they had just installed a whole new system. Callahan installed our furnace approximately 10 years ago and did an excellent job then. That was a major reason for contacting them for central air. Thanks Matt, Kevin, Jason and Dan!!! Would always recommend your company to anyone looking for HVAC services. Bring on Summer!!!! read more

As always, Callahan came through for us. Repaired our AC during the first hot spring days when they were extremely busy. Somehow they worked us in. Brian was efficient, polite, considerate and caring. Can't ask for more than that. Recommend highly. Paul Luther North Andover read more

John Callahan is the most honest professional in this business I have ever known. He has helped me solve my problems, as other companies wanted to charge me triple. Any time I had a problem he came to solve my problem. I highly recommend him! M. Barnes read more

My Central Air fan stopped working. Due to availability, it took Callahan a few days to come out, which was fine. Technician was able to come out a day early and diagnosed a bad motor. A week for parts and an hour install later and the A/C was up and running again. Communication was good, tech arrived when they said he would. read more

I'm a local southern NH homeowner and have a propane (LP) system (Rheem) on which I did my own diagnostics. I specifically required someone to install a standard Honeywell valve unit which I procured separately. Callahan took my call, but the agent (Maggie) seemed to have a problem working with what I was looking for, even so much asking if I was licensed. The agent emphasized they couldn't ensure functionality of the part (duh!). The agent's process was to take some information down over the phone and "check with the manager in the morning". She promised a call back the next morning which never came. Plus the hourly rate was $35 more than a competing provider. read more

My call one week ago today has yet to b resolved. Maggie and Sue who work in the office cover up each others lies. No heat and they do not care. They sent out a service person this past Tuesday. His name,Johnathan and he never turned in an invoice, work order or whatever he was supposed to do. They lied in the office saying he had a personal emergency and was not in work but they would look into it and get back to me. Never called back. Called again and this time Maggie told me she would get the info the office needed from Johnathan the tech who came. Earlier Sue said he had a personal emergency and was coming in later. It goes on and on. Lie after lie. Do not use this company as the women in the office tell u what u want to hear and then NO follow through, instead of just telling the truth. They just don't care about ur issue and lie to cover up their lack of follow through. I'm updating as they came today. They sent a very polite, knowledgeable young man who was kind and considerate. He took the time to explain and also wanted me to b aware, which I was, that all private businesses are working as hard as possible to help the folks that Columbia Gas has left out on a limb. I appreciate his work and follow through. read more

If I could could give negative star I would. This company is totally unreliable and unprofessional. Do Not do business with them. I called them and made appointment and due to the gas crisis in Andover, North Andover and Lawrence they moved my appointment to the following week. Two days before I called to confirm my appointment. After taking the day off from work they never showed up. I called an the office manager was totally rude to me and she said she didn't have a plumber to send out. Is this a way to do business? read more

Would give them a ZERO if i could! Worst company ever! Will NEVER recommend them! First they tell us we need a part, had to order it, okay, then the next day takes apart the whole unit and says, or sorry got the wrong part and probably should get another part! Mind you this was the last 3 days which it was been in the 90s and we have work and have rearranged our schedule to make sure to be home...Was told they would come back today (oh and charge us more for service for a 2nd day) between 3 and 4pm, so we were waiting for a call, never got one, so we just called and they said oh not sure when we will get there we are closing!!! ARE YOU KIDDING ME!!! Do not trust this company! read more

Callahan installed new system only about 5 or six months ago and converted us to gas. Although the conversion went well, now that we are having problems with the system they fail to answer us to make a service call. It is below zero tonight and our house is not heating up properly.. We spoke to a receptionist in the office 3 or 4 hours ago, and the tech was suppoosed to call us. He never did. Now thier phones just ring busy, as if they took them off the hook. where are they when we reall need them? My husband said we also got a service contractnwith the installation. This is not service...it is dis-service! BUYER, BEWARE! read more

I called for replacement of expansion tank that is leaking ( a relatively easy job). When they responded they said they could not get to me til the end of the month (two weeks away) read more

Never called when they said they would, had, absolutely, no interest in finding a solution to my problem, ignored my email. The WORST customer service. Use at your own peril. read more

As good as it gets! Called Callahan to quote replacing my expired 20yr old furnace. Matt showed up on time to look at my existing system and offer a range of possible replacements. I found Callahan to be better than competitively priced compared to 2 other companies that quoted the same work. The Callahan crew showed up on time on the scheduled day. Kevin and Bob were polite, professional, knowledgeable and thorough. The install was completed by the end of the day. They cleaned up and explained the working and maintenance of the unit to my satisfaction. read more

Callahan came with three recommendations. We hired them to replace our furnace, install air conditioning and install a new on-demand hot water heater. A very large crew showed up right on time and got to work and by 3:30 they were all done. From time to time I went around to them asking questions about what things were or answering questions they had for me. At the end of the day, everything was in perfect working order, my old furnace had been removed and carted away and my furnace converted over to gas from oil. The crew worked extremely well together. They are reasonably priced and provide quality work. read more

I recently had Callahan install a New AC System in my home. During my vetting process, I had 4 companies come to give me a Proposal. The Prices were all over the place and 2 out of the 4 did not even do Heat/AC Calculations to determine the size of my system. Matt from Callahan took the time to explain what they would do and submitted a detailed Proposal for me to review. Matt scheduled the Installation 6 weeks in advance. They arrived as scheduled. Unfortunately, I had a Family matter that would not allow them to be on site for the 3 days as planned. When I discussed this with Matt, his office decided to add additional workers to install my System in 2 days to accommodate me. Whitey, John and their crews were respectful to my home, polite and neat in everything they did even though they had less time to do it. I highly recommend Callahan to anyone that is considering a new Heating or AC System for their home. Bob. M. North Andover, MA read more

My furnace was working sporadically during the deep freeze of December 2017. The unit had been serviced by others in the past, but it took the tech at Callahan to discover the root of the issue. For the first time in 15 years, my furnace is working properly. read more

Callahan installed a new furnace / ac unit in my home recently and I am very pleased with the service. They showed up on time during the sweltering heat of a July day, immediately got to work and were done by 4pm. They showed me how to work my new unit, cleaned up after themselves and were very professional. I would definitely recommend them to others. read more

I had Callahan AC and Heating come out and submit a proposal on a furnace replacement earlier this month. They were responsive, professional, and offered me what I thought was a better product at a great price. I booked the install and was equally impressed with the crew who kept me informed as the morning unfolded. The unit was tested the site was picked up and again everyone was courteous and seeming to want to do the best job they could. Wow, customer service like I haven't seen in a long time and who knew they do work in Belmont! read more

We waited 6 weeks to get an appointment to have our three A/C units serviced and repaired. They came to the house, were not polite, said it wasn't written down which unit to repair, and refused to do it. I spoke to the manager twice and they've put us off for 6 days! In the summer heat- my kids can't sleep because of the heat. They actually said that they had a customer that was more important and they couldn't return until the following week! Six weeks before, they had trouble finding the work order Guardian care had sent them; I called Guardian again, who had in fact sent the orders; I had to get the work order numbers myself, and call Callahan again. They are incompetent and rude. I would definitely not use them again! Climate Control is a good company, as in CoolRite. We had to use Callahan as they were contracted with Guardian Care, and we already had paid for yearly maintenance work. read more