Fast & Reliable

We provide fast, reliable, and dependable heating and air conditioning service to Great Falls. If your system needs service, we can help!

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Honest & Fair

We are thorough, informative, and knowledgeable and will treat you honestly and fairly. We pay attention to details because it’s the little things that make ALL the difference.

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Gill’s Heating & Cooling

At Gill’s Heating & Cooling, we make sure that our customers get the most out of what they spend from their pocket. With years of experience we cater to all your air conditioning and heating needs. We service and repair our residential customers with excellence. We do sales, service and installation and make sure our customers feel good at home or business. We also provide estimates on new installations. The most important thing is the quality and attention to detail that we provide. With Gill’s Heating & Cooling, you can expect value and comfort.