Trusted HVAC Contractors in Great Falls, MT

“I have had the pleasure to work with AT Klemens on a professional level. As a licensed Property Manager, we manage several properties throughout Great Falls. The AT Klemens team is always responsive and professional-even at 2am in a snow storm to fix...”

“Very professional. I have had them over to repair an old furnace and when it was time, I selected them to install a new one. No pressure, good work, goes the extra bit to make sure things are better than ever. Helps with the little things. I did...”

“Professional, clean, affordable, prompt, and friendly. I have no reservations about recommending this team to anyone for heating and cooling. No pressure advice and estimates, but also honest about needs and things to watch out for. Replaced a furnac...”

“Great place for all your heating and cooling needs.”

“Doug's co-worked Ken , did an excellent job on my air conditioner. It was covered in cottonwood cotton about a 1/4” thick, blanket. After the job was done he made sure the air conditioner turned on and off, and was in good working condition. Thank yo...”

“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!! Positive Responsiveness, Qual...”

“Brett was professional and fast. He was honest and fair. Thanks for everything.”

“I was very relieved when Mike fixed a boiler problem that would otherwise have cost me thousands. He certainly can troubleshoot. He left only after he was sure I understood how to determine if "the fix" actually solved the problem.”