Heating and Furnace Repair in Sudbury, MA

If your vents are blowing cold air instead of warm or if your furnace is making unusual noises, you may be in need of furnace repair in Sudbury, MA. Heating systems can break down for a number of reasons, ranging from simple old age and wear and tear to issues with the pilot light or other internal components. No matter what the situation may be, the team at [company_name] knows just how chilly East Coast winters can be, and you can count on us for prompt, efficient heating repair!

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.

Heating and Furnace Repair in Sudbury, MA

How Do I Know If I Should Schedule Furnace Repair in Sudbury?

If your furnace needs repair, you’ll most likely notice a difference in operation and overall efficiency. Some other telltale signs of a malfunctioning furnace or heater include a complete lack of heat when the system is running, heavy dust build up on your HVAC system vents, and frequent cycling.

Your thermostat may also give inaccurate readings or struggle to keep up with outside temperatures. While it can be frustrating when your heating system suddenly stops working, the good news is that the team at [company_name] knows exactly what to do to get your system up and running again.

If you notice any of these common heating system issues, call us:

Lack of heat/vents blow cold air
Furnace won’t start
Overly dry indoor air
Loud noises coming from vents

Did you know that clogged or dirty air filters can cause a host of heating system issues, including slow operation and poor indoor air quality? While the air filter may seem like a minor component in your heating system, it’s actually essential for efficient operation.

When air filters become overly clogged with dust and debris, your heating system needs to work harder to effectively heat your home. This can lead to dust in your circulating air, frequent cycling and damage to your furnace. Plus, if your furnace has to work extra hard to keep up, your energy costs can increase.

Your Expert Heating Repair Team

From quick furnace tune-ups to complete boiler and heat pump replacements, there’s no job the team [company_name] can’t handle. We strive to provide quality services at affordable prices, and we’re committed to energy-efficient solutions.

As local New Englanders ourselves, our team understands the importance of having a properly-functioning heating system. Our business is open 7 days a week, and you can count on our technicians to arrive to your location promptly and get right to work on repairing your heating system.

Our main objective is to ensure our customers are safe and comfortable, and our technicians will do whatever is necessary to get your heat pump, furnace or boiler up and running again.