Get matched with top air conditioning pros in Athol, MA

Endless Energy is a trusted local HVAC and Plumbing Company servicing the majority of the state of Massachusetts with office in Marlborough, Needham, and Randolph. Specializing in Heat Pumps, Central AC, Furnaces, and Boilers, we have Master Plumbers, Electricians, and HVAC Technicians all under one roof reducing your need to find multiple contractors! We are also a Mass Save partner and can conduct your no cost Mass Save Home Energy Assessment and install any recommended insulation.\n\nWe can help you with: \n*Heating Repairs, Installation, & Service\n*AC Repairs, Installation, & Service\n*Plumbing Repairs, Installation & Service\n*Water Heater Replacement & Service\n*Indoor Air Quality Solutions\n*Ductwork & Line Set Solutions\n*Electrical Panel Upgrades and Replacement\n*Insulation \n*No Cost Home Energy Assessments\n\nA Mass Save certified contractor with an A+BBB rating. All of our skilled technicians undergo an extensive background and drug screening prior to being hired to our team!

"I had an excellent experience with Stephanie, Tim, and Spencer during the installation of my mini split system. From the very beginning, they were professional, friendly and communicative. They took the time to explain how the installation process would work and made sure I understood all the benefits of swtiching to the system. I felt well informed and supported. Since the installation, the system has made a huge difference in my hosuehold. The units are quiet, efficient, and give me the ability to control the temperature in all rooms in my household. Not only does it keep the space comftorable by replacing AC's but I've noticed the air quality and drop in my electricity bills are better. I"m grateful for the work this team did and would recommend them toothers. I trust them completely and wouldn't hesitate to use them in the future again. Thank you!"

"Fast service. We did this job 6 mos ago but I held rating until after air conditioning season. Worked perfectly and the ductless system was both quiet and inexpensive to run. Couldnâ  t be happier"

"The guys at Modern Energy did an excellent job, Ryan was VERY responsive and got me the best deal possible. These past two summers showed how beneficial this type of system mini-splits are. Highly recommend!"

At Endless Energy, we believe your home should be comfortable, energy-efficient, and future-ready. Proudly based in Massachusetts, we’ve served our local communities for over 40 years, delivering expert HVAC, plumbing, and electrical services that help homeowners and businesses save energy, reduce costs, and lower carbon emissions.\n\nBuilt on a foundation of quality, innovation, and transparency, we provide whole-home solutions—from replacing outdated systems to helping you fully electrify your home with the latest clean energy technology.

Gervais Plumbing Heating & Air Conditioning provides the best service in the region. Call us today, or submit the form and we will be in touch.

"Hi there! We’re Sidewinder Handyman Services, proudly serving homeowners since 2025. Whether it’s a small repair, a big upgrade, or something in between, we’re here to make your projects simple, stress-free, and affordable. Our goal is to take the hassle out of home maintenance so you can focus on enjoying your space.\n\nLet’s get your to-do list done! Reach out today for your FREE quote and see how easy it can be to love your home again."

CIRCULAIR MINI SPLITS LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"The guys were on time, cheerful, thorough, and and got the job done. They were thoughtful about my cat, too. The 'sanitization' stuff they sprayed did smell for a few days, despite my airing out the house with the windows open, but it did eventually go away. And they must have gotten a lot of dust out because my children (who are usually very sneezy with the dust pumping through our house) have seemed much better since the ducts got cleaned. Very happy with the service. I used an Angie's List "deal" for the service--I was in a hurry to get it done (my kids had dropped some art supplies down a vent that were making clicking noised that were driving me nuts) so I didn't compare prices at all, I just looked for a company that seemed thorough and they they were. And the clicking sounds of rogue art supplies is gone. Yay!"

"Bruno arrived early and gave me a full explanation of what he was going to do and the estimated time it would take. He was courteous and professional. He showed me before and after pictures of the air ducts. The company was very easy to deal with and I would certainly do business with them again"