Heating & Repairs, Installations, & Maintenance for Home & Business

Denver Metro’s Fastest Growing HVAC Company

Trusted Technicians Work to Make Your Heating Service & Repairs Convenient, Afordable, & Efficient

Need a fast repair? Our technicians will quickly provide you with the necessary education to select services and products to get your system backup and functioning to full capacity.

Time for an upgrade? Our expert technicians will make recommendations best suited to your home and budget (financing options available). They will also streamline the installation process, helping you to improve the value and efficiency of your home, with limited down time.

Great Guys is a technician owned business! Our NATE certified technicians are the best in the industry with a proven track record of success. 93% of new customers are referred by our loyal return customers and small business partners.

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Join our Maintenance plans

Services Offered


Furnace Service, Repair, & Installation


Boiler Service, Repair, & Installation


Heat Pump Service, Repair, & Installation


Emergency Heating Repair & Installation


New Duct Work Sealing


Flawless Installation According to Manufacturer Specifications


Indoor Air Quality Installation & Service


Full Electrical Services to Support Any Service or New Installation


Commercial Heating: Service Custom Home Builds & Renovation Projects

WHAT our satistied customers have to say

Buy now and make payments over time with flexible
financing options for installations.


Flexible Financing


No Early Payment Penalty


Fast And Easy Online Applications

The Great Guys Guarantee

Our HVAC professionals will build the right heating system for your home and budget.


Free Estimates


Highest Installation Reviews And Products


Space Heaters Available


10 Year Parts And 5 Year Labor / Install Warranty

Our company is also accredited by the Better Business Bureau. Our team is focused on helping you efficiently resolve issues with your current heating system, or helping you make efficient cost effective decisions for system upgrades, using the most reliable equipment. A warm cozy home in the coolest months of the Colorado winter makes all the difference.

We are honored to bring you the best service and equipment to ensure you save money on utilities, love your time at home, while increasing the value of your property.

Communication is priority one for Great Guys. You will be contacted to confirm scheduling, before your appointment, and as technicians develop a HVAC service plan or installation upgrade recommendations for your home.

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5684 S Datura St.
Littleton, CO 80120