Expert HVAC Repair in Great Falls, MT 59404 - Brennan Heating & Cooling
815 21st St NW, Great Falls, MT 59404
Business Profile
Brennan Heating & Cooling has been a trusted name in Great Falls, MT, since 1990, providing reliable heating and cooling solutions to both homes and businesses. As a local, family-owned HVAC and metal fabrication company, we specialize in the installation, repair, and maintenance of heating and air conditioning systems, with particular expertise in Heil® units and energy-efficient mini-split ductless systems. Our skilled team also offers custom metal fabrication, designing and building components for a wide range of projects to ensure your HVAC system fits your space perfectly. We understand the specific climate challenges of the Great Falls area and are committed to delivering straightforward, durable solutions that keep our neighbors comfortable year-round. Our focus is on honest service, quality workmanship, and building lasting relationships within our community.
Service Capabilities
- HVAC installation or replacement
- Metal fabrication
- HVAC system repair
- HVAC system maintenance
Q&A
What are the benefits of regular HVAC maintenance for my Great Falls home?
Regular maintenance helps your system run efficiently, which is crucial for handling our Montana winters and summers. For residents in Great Falls, it can prevent common issues like thermostat malfunctions from sudden temperature swings and catch small refrigerant leaks early before they impact cooling performance. Our maintenance service includes a full system check, cleaning, and calibration to help extend the life of your equipment and maintain consistent comfort.
Can you fabricate custom metal parts for a unique HVAC installation?
Yes, absolutely. Our dual expertise in HVAC and metal fabrication sets us apart. Whether you need a custom ductwork transition for an older Great Falls home, a specialized mounting bracket for a mini-split system, or a unique vent cover, our in-house metal shop can design and fabricate the precise components required. This ensures a perfect fit and optimal performance for your specific project.
My AC isn't cooling properly. Could it be a refrigerant leak, and how do you handle that?
Refrigerant leaks are a common issue in our area that can significantly reduce cooling efficiency. If your system is low on refrigerant, it's a sign of a leak that needs to be found and repaired. Our technicians use specialized tools to locate the source of the leak. We then perform a permanent repair, following EPA guidelines, before recharging the system with the correct amount of refrigerant. This restores performance and efficiency, which is especially important during our warmer seasons.
Business Location & Hours
| Mon: | 8:00 AM - 4:30 PM |
| Tue: | 8:00 AM - 4:30 PM |
| Wed: | 8:00 AM - 4:30 PM |
| Thu: | 8:00 AM - 4:30 PM |
| Fri: | 8:00 AM - 4:30 PM |
| Sat: | Closed |
| Sun: | Closed |






