We are a second generation, family owned and operated business and have been installing and servicing heating & cooling systems for almost 20 years in the North Andover area.


Callahan A/C & Heating Services specialize in the installation and service of complete COMFORT SYSTEMS; to provide total comfort for you in your home by maintaining your current heating, cooling  and hot water systems, and when its time, by helping you choose the best, new or replacement system options.


As an independent dealer, we can offer the latest technology solutions by all of the industry’s leading manufacturers. Our experienced staff will work with you to design the best Total Comfort System for your specific needs.


All Callahan employees are OSHA certified and receive on going training in their areas. Our mission at Callahan’s is to provide a level of service that exceeds the customer’s expectations and provide quality installations that provide energy savings and comfort.


Give us a call, we always have live people to answer and will be happy to schedule service call, setup an appointment for a quote or just answer your questions.  We will work to be your HVAC company.



Contact us to request information or call us at (978) 689-9233 and set up a free estimate

Margaret CallahanKate Callahan
Margaret Callahan / Kate Callahan – Directors

Maggie and Kate are the second generation  of Callahan’s to work the family business and now oversee all of the day-to-day operations. When you call Callahan A/C & Heating Services you will always get a live person to answer the phone and your chances are pretty good you will be speaking to one of them. If you need help scheduling any of our services, Maggie can direct you, she is the one  that maintains the schedule for all our technicians and plumbers and keeps things  organized and running smoothly. If you want to talk about financing, rebates or insurance, Kate is the one you will be speaking with, she can walk you through a financing application and get you  approved the same day.

Andrew Raimondi -  Service Manager
Andrew Raimondi - Service Manager / Commercial Sales

Andy has  more than 25 years experience in the HVAC field and holds licensing in Refrigeration, Gasfitter & Oil burner and he is OSHA, NATE and QIV certified. Andy has worked with Callahan’s since 1996 and is our trusted go-to source for providing technical expertise both to our staff and to our customers. If you are having any issues with your current systems give him a call, he will walk you through all the options and come up with the best solution to meet your comfort needs.  

Kevin McDonald  -  Install Manager
Kevin McDonald - Install Manager Residential Sales

Kevin started with Callahan A/C & Heating Services back 20 years ago working summers as an installer while attending college. Once he graduated he came on full time as a Comfort Adviser and is now an expert at helping you determine the best heating and cooling application for your home or business. If you are interested in replacing your existing system, adding cooling, considering zoning, or any type of comfort system remodel - he will gladly help you. Just contact the office and we will schedule  an appointment.

Jeffrey Hutnick - Master Plumber
Jeffrey Hutnick - Master Plumber

Jeff has more than 30 years of plumbing experience and handles, along with our plumbing staff, all of our wet heat applications. These applications include boiler and water heater installations, as well as, plumbing service.