Reviews of local pros in Boulder, Colorado

Eddie was incredibly prompt and systematic during our furnace repair process, making the entire experience smooth for us. Our job was somewhat complex due to the structure of our ducts, but Eddie and his team showed great dedication, working late into the evening to ensure everything was perfectly set up, all done within a single day. The newly repaired system has been functioning excellently so far, and we anticipate that the need for oil as a backup will be minimal as the furnace can operate efficiently even at 15F. We would highly recommend their services to anyone in Boulder looking for reliable furnace repair or HVAC services. Say goodbye to fossil fuels!

we’ve relied on fusion heating & air conditioning for decades to keep our hvac system running smoothly. whenever our heat pump has had an issue, we’ve called and always received fast and professional help from experienced technicians. this weekend, during a hot spell with temperatures close to 100°f, our air conditioning suddenly stopped working. even though it was a sunday evening, we called, expecting to just get on the service list. to our surprise, chris arrived at our door in about 20 minutes, ready to help. he quickly diagnosed the problem and had the right replacement part on his truck, so our cooling was back up and running right away. living in colorado, reliable cooling is so important during those hot summer days, and our heat pump has been one of the best investments for our home comfort. every time we’ve had a problem, the service has been quick, friendly, and truly above and beyond what we expected. we always feel like our comfort matters, and we can count on the team to keep our system in top shape. we wouldn’t go anywhere else for heating and cooling needs.

Chris did an excellent job explaining all the details of the routine maintenance he was doing on my heater. He helped me understand how my heating system works and what I can do to keep it running well. I felt sure of his skills and knowledge, and he was friendly and respectful the whole time. It gave me peace of mind knowing that he carefully checked and cleaned everything, and he showed me all the numbers and what they should be. I really appreciate the great service!

If I could give this company 10 stars, I would! The furnace at my house, where my elderly parents live, stopped working. I filed a claim with my home warranty, and within the hour I was notified that they would be sending someone out. Axel, the technician, arrived right on time. It turned out to be a thermostat problem. Axel was able to override the thermostat, and the furnace started heating again. After about 30 minutes, the furnace stopped working once more. It turned out that the thermostat was faulty and no longer supported. I called back, and Axel returned quickly to replace the thermostat and got the furnace working perfectly for my parents. I am very thankful for their fast and professional furnace repair service. I highly recommend them!

axel, a technician from the heater repair team, has helped me out with heater repairs at my home in boulder a couple of times recently. i was doing some remodeling and needed to have my old heater disconnected and then reconnected after the work was done. during this time, i also got a new heater installed, and axel handled the whole installation with great skill. he was always polite and respectful, making sure everything worked perfectly before leaving. axel really stands out for his friendly attitude and quality work. i'm really glad the company sent someone so reliable and professional for my heater needs.

After doing everything possible to keep my 20-year-old HVAC system running, I decided to replace the entire setup including the condenser, furnace, and ductwork. Fusion Heating & Air Conditioning handled the job with no sales pressure at all. The installation was completed in just two days and the price couldn’t be beat. The quality of the work was excellent, and they were very careful with my home throughout the process. Jonathan, Axel, and Chris were the technicians and worked hard in the Boulder heat to get everything running quickly so we could be comfortable right away. They kept me informed every step of the way, which made me feel confident and secure in my decision. I highly recommend them.

I needed to get my old heater system replaced, so I reached out for help and I’m really glad I did. The whole process was smooth and easy, and everything was explained to me clearly from start to finish. Axel and the team arrived right on schedule, finished the heater installation in about half a day, and made sure both the inside and outside work was done properly. When a small adjustment was needed, Axel came back within hours to fix it the same day. The service went above and beyond my expectations. I highly recommend them to anyone needing heater repair or a new heater system installed.

After having a bad experience with our first furnace installation, we were so glad to find a company that really knows what they're doing. The first installer did a poor job with both the furnace and the ductwork—the unit wasn’t stable, the ducts were just lying on the attic floor, and there was a mess left behind. When we tried to bring up our concerns, we didn’t feel heard and were even asked to pay more for repairs that should’ve been done right the first time. Luckily, we found another company that truly turned things around for us. From the start, their team—Eddie, Chris, and Jonathan—was professional, polite, and treated us like valued customers. Even though there were some small delays at first, they communicated well and came out quickly to completely redo the furnace and ductwork installation. The difference is like night and day. The new furnace install looks solid and professional, and the ductwork is properly secured. Eddie, Chris, and Jonathan were thorough, knowledgeable, and made sure everything was up to code and safe, which is so important here in Colorado where winters can get really cold. We’re very happy with the results and feel confident that our furnace will keep our home warm and comfortable for years to come. This company really restored our trust in furnace repair and installation.

I needed a repair for my commercial furnace in Boulder. I called and Chris came out right away to fix the problem at a very fair price. What really stood out to me was how quickly they responded—faster than I expected. Chris figured out exactly what was wrong with the furnace in just a couple of minutes and had it working again just as fast. He was not only quick but clearly knew his stuff. I’m not a furnace expert, but I could tell I was dealing with a real professional. The cost was reasonable, and I felt good paying for such great skill and service. I’ve had the same positive experience when they worked on my home furnace as well. When the owner is out working alongside the team, you know you’re dealing with a company that truly cares. If you need furnace repair, these guys are fast, knowledgeable, and honest. I highly recommend them!

I’m giving 5 stars for the heater repair service I received. I found this company online and was glad I called when my propane furnace stopped blowing warm air. I called on a Monday morning and Axel arrived by the afternoon. He checked and figured out the problem quickly, and treated my home with care. He needed to order a part, but kept me updated and came back to install it as soon as he could. The quality of his work was excellent, and the price was better than I expected after comparing average HVAC repair costs. Axel even went above and beyond by climbing onto the roof and into a tight crawl space to fix the issue. I would recommend this heater repair service to anyone in Boulder looking for honest and respectful help.

Fusion Heating & Air Conditioning was great to work with. Eddie was very knowledgeable and patient. After many years, our old furnace stopped working in our 100-year-old Boulder home. Fusion Heating & Air Conditioning installed a new furnace and thermostat for us. Everything is working perfectly now. The whole installation was finished in less than a day. Jonathan and Chris were very professional and handled everything smoothly. Our new furnace is much quieter and more energy efficient than the old one. I would definitely recommend them to other Boulder homeowners.

Axel and the team did a great job with our heater repair in Boulder. When our heater stopped working, they came out quickly and fixed it, so we didn’t have to worry about being cold. Because of their fast and reliable service, we also chose them to install two new furnaces during an upgrade at another building. They were always clean, polite, and on time. It’s hard to find such dependable contractors these days. I highly recommend Axel and the crew for any heater repair needs.

After many summers struggling with heat building up on the second floor of my house, I decided it was time to look into AC repair and installation to help cool things down. I spent quite a bit of time researching different types of cooling systems and felt ready to discuss options and pricing. When Jonathan from Fusion Heating & Air Conditioning came by, he listened carefully to my research and concerns, and patiently explained which air conditioning options would work best for my home. His advice was spot on! We went with a system that included variable speed fans and a special fan mount that really cuts down on noise. Jonathan also added extra venting to the roof, so now we can get rid of trapped hot air in less than an hour. With the hot summer days we've had, the new AC system has made a huge difference. Jonathan has even checked in after the installation to make sure everything is running smoothly, which I really appreciate. I felt comfortable having him work in my home, and he always made sure to leave everything clean and tidy. If you’re thinking about any AC repair or installation, I highly recommend putting this company on your list.

I had a great experience with this AC repair company. When our air conditioner stopped working during a stretch of really hot weather, I was relieved they offered 24/7 service. Even though they were busy, they fit me into their schedule quickly. Chris arrived at my house that morning, replaced the capacitor, checked the refrigerant levels, and let me know I should change my furnace filter to help with airflow. He was very professional and paid attention to every detail. Now, my AC is working better than it has in a long time. I highly recommend this company to anyone needing AC repair!

I called for furnace repair early in the morning and Fusion Heating & Air Conditioning had someone out to my house in just a couple of hours. Chris was polite, friendly, and really knew what he was doing. He was patient with all my questions and explained everything in a way I could understand. Chris quickly figured out why my furnace wasn't starting up after I turned the heat back on, and also shared helpful information about my system that I’d been curious about for a long time. He even re-programmed my thermostat to switch from one heat source to another at a temperature that works best for me. When the job was done, I felt confident my furnace was fixed right and that I understood my system much better. I’m very happy with the service and would definitely recommend them for furnace repair.

If you want reliable heater repair with excellent customer service and a straightforward, honest assessment of your heating system, I highly recommend Fusion Heating & Air Conditioning. I had three different companies come out to give me quotes for a new heater, but only this team told me about a $700 rebate I could get from my electric company—none of the others even mentioned it. Chris came out and did a thorough load calculation to make sure I was getting the right size furnace for my home. In the past, I’ve had new heaters installed and nobody ever bothered to measure or check what size was best. The technicians were professional, put down protective plastic on my carpet, measured the wall space carefully, and vacuumed the area after finishing their work. They were extremely courteous and made the whole process easy. I only wish I had found them sooner.

the team here really helped us out when our ac suddenly stopped blowing cold air. we tried a few things ourselves like checking the filter and fuses, but needed a real ac pro. they sent someone out the same day, which was a relief since it gets hot here in colorado. chris showed up earlier than expected, quickly figured out the problem, and had our ac working again in about 20 minutes. everyone i talked to was friendly and helpful. being pregnant and dealing with the heat was tough, so i really appreciated how fast chris fixed everything. i highly recommend their ac repair service if you need a quick and reliable fix.

Our heater stopped working early Sunday morning in Boulder when it was really cold outside. We called Fusion Heating & Air Conditioning’s emergency line, and Jonathan got back to us right away. He arrived at our house within half an hour, quickly figured out the issue, and got the furnace running again. He let us know a part needed to be ordered, and once it arrived, he came back and finished the repair. We were very happy with how fast the response was, Jonathan’s professionalism, and the great quality of the service. Highly recommend for anyone needing heater repair in Boulder.

Eddie installed two mini split heater systems in my older Boulder home. The upstairs used to always stay cold, especially in the winter, but now it warms up nicely. The second heater was set up in a front room that was originally a porch and didn't have any heating before. Eddie's estimate was lower than other companies, even though he used the same quality equipment. He was also the only one who let me know that I’d need a separate electrical circuit for the new system. Everyone I talked to was friendly, professional, and answered all my heater repair questions. The team arrived on time and worked hard all day to get everything running. I highly recommend this company to anyone in Boulder who needs heater repair or installation.

Fusion Heating & Air Conditioning did a fantastic job with my AC repair. Chris made all the repair options and their costs very clear, including any discounts. Jonathan was courteous, polite, and really knew his stuff during the service. He explained each step, from checking my old unit to getting the new system running smoothly. Jonathan also gave me helpful tips on setting up my new thermostat. I work in customer service myself, so I really appreciate when a company delivers excellent service. This was my first time using them, and they definitely met my expectations. I look forward to working with them in the future!

There isn’t another heater repair company in Boulder that can top the service I received. I had Chris come out to install a new heater a while back, but it turned out the unit had a hidden issue. Even so, the heater worked for years before finally giving out during a cold snap. One chilly morning, my heater stopped working and my house was freezing. I called Chris early, and he answered right away, which really helped me feel at ease. Chris arrived at my place by 9 am, quickly found the problem—a leak in the system—and took care of everything from contacting the warranty company to getting the new part. He managed to get my new heater installed the very next day, even when everyone else was dealing with supply shortages! Chris is truly amazing and I couldn’t be happier with the fast, reliable service.