Brennan Heating & Cooling Inc

Brennan Heating and Cooling installed a Mini split type A/C unit at my house and they showed up the day they said they would and completed all aspects per our contract. They were the cheapest quote I received as well. Would recommend for future projects

I had major water damage in the house with the existing furnace being submerged. Pat came right over to inspect the issue. He was so wonderful and very nice to work with! The next morning Chad was over to install a new furnace and air conditioner and to repair the ducting that was damaged. They were absolutely fantastic! It was one of the best experiences considering the circumstances and they will always be my go to from this point on!

Brennan H&C has always offered top notch service and installation! If we've ever had problems they are there promptly to service the equipment. They have always been professional! I would highly recommend this business!!

I Called and spoke with Pat about a garage heater install. He made time for me just a few minutes, and he followed me to the garage. Pat only asked a few questions, like where did I want it, and anything special on the vent. Straight up the wall and out the back of the garage. Wow, that is what he did, and it is great. They even used cluck that matches the sideing. I am very happy with the job and workmanship. Excellent work.

One phone call in the morning when the furnace broke they came right over fix it immediately great people to deal with I’ve used them for years terrific company traffic employees

Excellent service and very professional!

Great, super nice, rapid customer service from local family owned business. AC broke in the midst of a couple weeks of 90F+ heat (compressor went out on old R22 unit); they came out to bid the repair and had me back up and running with new AC unit installed the next day. Would call them again, no question.

I have used Brennan at both our store and at home to service our Heat and AC systems for over 25 years. Staff is knowledgeable and personable. They have serviced our roof system when it was -10. The tech was a Popsicle when done but he got our heat going! Fairly priced and reliable. I appreciate the good work.

Brennan Heating and Cooling did an excellent job installing central AC. Very professional from start to finish. Would highly recommend this business for heating and cooling services!

When it comes to HVAC, you get what you pay for. Brennan H&C have installed a new construction furnace, as well as AC units in the same new construction, and my existing house - all the way in Bozeman. Tried to find a qualified and competent company in Bozeman and Kalispell, and they seem to be partially trained and marginally competent compared to the school trained guys that this company has employed. Would I use them again - hell yes. If they were local here in Bozeman, I would have them do our semi-annual maintenance on my organization's building. Keep up the great work. (Oh, and they also put in a new furnace and A/C unit at my folks house in GF, as well as an overhead garage heater. Flawless). Do your homework and you will find out why they are so good. I'm not willing to pay for work that continually needs maintenance" because the first 3 guys didn't know what they were doing (which has happened here in Bozeman)."