HVAC Holliston MA

HVAC Services in Holliston, MA | Endless Energy

Your Comfort, Our Priority

At Endless Energy, we believe in delivering top-notch HVAC services to the Holliston, MA community. With over 40 years of experience, we’re your trusted partner for all heating, cooling, and energy needs. Our expert team ensures your home stays comfortable, energy-efficient, and cost-effective year-round.

Why Choose Endless Energy?

Family-Owned and Operated: With a legacy of trust and reliability, we treat every customer like family.
Over 40 Years of HVAC Expertise: Our seasoned professionals bring unparalleled knowledge and skill to every job.
Certified and Trusted: We’re Mass Save® Certified and boast an A+ rating with the Better Business Bureau.

We also offer HVAC Services in these surrounding areas:

HVAC Services in Holliston, MA | Endless Energy

Your Comfort, Our Priority

Why Choose Endless Energy?

Family-Owned and Operated: With a legacy of trust and reliability, we treat every customer like family.
Over 40 Years of HVAC Expertise: Our seasoned professionals bring unparalleled knowledge and skill to every job.
Certified and Trusted: We’re Mass Save® Certified and boast an A+ rating with the Better Business Bureau.

We also offer HVAC Services in these surrounding areas:

Read our 5-star reviews on Google.

Marcia Cohen

Laura Armstead

6/9/25
The technician, JT, provided excellent detailed maintenance and cleaning of my two Fujitsu units and my two Mitsubishi units. He noticed one of the Fujitsu heads had accumulated a large amount of mold buildup. Thankfully, he scheduled June 18th as the date for him or another technician to return to clean this mini split head.

6/18/25
One of my Fujitsu mini-splits had a great deal of mold buildup. Eydin, the technician, explained what he would have to do and did an excellent job of answering my questions and cleaning the mini split head.

Both technicians were very knowledgeable about the mini splits, the work that needed to be done, answered all my questions and completed everything in a timely fashion.

Muqeem Mughal

I have been a customer of Endless Energy since 2018 and have dealt with them multiple times for various tasks. They have always provided excellent service and superb after-sales service. Most recently I got an energy assessment done by them. Mark Otis came in on time, was extremely knowledgeable, very courteous and provided very helpful feedback. Best of all, he did not try and upsell me anything and left me with important and helpful information I could use in the near future. A truly comfortable experience and I would highly recommend them for all your energy savings needs.

Beatrice Guzman

I’d recommend Endless Energy 10/10, they were punctual, transparent, & worked diligently! They weren’t able to finish the job in one day due to unforeseen circumstances. However, they came back the next morning & finished the installation of HVAC system.
Hunter, Mike, & Keith were very professional!
Hunter explained the process of what was going to happen & what to expect, which was appreciated!!

Kesler Roberts

Philip Katz

Good service. Friendly and helpful employee.

Joseph Ricciardi

Special thanks to Don Davis and Cameron Nolette for their thorough annual maintenance on our LG heat pump. Above and beyond the call ensuring condensation water drained properly - completely ready for the summer. Many thanks.

Nagraj Seshadri

Gavin arrived on time and did an excellent job in fixing our HVAC system! He was very professional in troubleshooting and fixing the issue, and verified with our smart thermostat that everything was configured properly and working as expected.

Ninjetic Photography

Exceptional service from Eydin Gomez, very professional and knowledgeable.

Peter from Newton

Daniel Hagerstrom of Endless Energy completed a MassSave-sponsored energy audit of our house in Newton. We are considering heat pump installation and asked that he focus on how heat pumps would fit with our heating and cooling needs. He was very helpful in furthering our education on options and factors affecting those options. Dan also reviewed our existing insulation and recommended further wall insulation. He is very knowledgeable and professional. We recommend him if you are considering a home energy audit.

HVAC Services in Holliston, MA

Comprehensive HVAC Services

Heating Services:

Furnace Installation and Repair: Keep your home warm and cozy with our high-efficiency furnaces and expert repair services.
Heat Pump Solutions: Opt for energy-saving heat pumps that provide year-round comfort.
Boiler Services: Reliable and efficient boiler installation and maintenance.

Cooling Services:

Air Conditioning Installation and Repair: Beat the summer heat with our top-tier AC units and prompt repair services.
Ductless Mini-Split Systems: Enjoy customized cooling for every room with our flexible ductless systems.
Central Air Conditioning: Experience consistent and efficient cooling throughout your home.

Energy Efficiency Services:

Home Energy Assessments: Discover how to save on energy bills with our comprehensive assessments.
Insulation and Air Sealing: Enhance your home’s energy efficiency with our expert insulation and sealing services.
Rebate Incentives and Financing: Take advantage of instant rebates and 0% financing on eligible products.

Unmatched Customer Service

At Endless Energy, your satisfaction is our top priority. Our friendly and professional team is committed to providing:

Same-Day and Next-Day Services: Quick and reliable service when you need it most.
Transparent Pricing: No hidden fees, just honest and upfront pricing.
Comprehensive Warranties: Enjoy peace of mind with our 12-year manufacturer warranties and limited service warranties up to 10 years.