1st Choice Mechanical in Thornton, Co

Dependable HVAC services in Thornton, committed to maintaining comfort and efficiency year-round.

Core Values

Thornton's HVAC solutions leader

1st Choice Mechanical LLC is honored to serve Thornton with reliable HVAC solutions since 2018. As a family-owned company, we prioritize trust, honesty, and integrity in all our interactions. Our team in Thornton is dedicated to meeting your heating and cooling needs with accountability and respect. Whether you need HVAC installations, repairs, or maintenance, count on us to deliver top-quality service at a fair and competitive price. Your comfort and satisfaction are paramount to us, and we are committed to earning your trust through our exceptional service and dedication to excellence.
HVAC services in Colorado

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HVAC Commercial

HVAC Commercial services by 1st Choice Mechanical LLC cater specifically to businesses and commercial properties, ensuring optimal heating, ventilation, and air conditioning solutions. Our expert team designs, installs, maintains, and repairs commercial HVAC systems, including rooftop units, ductwork, ventilation systems, and energy-efficient solutions.

HVAC Residential

1st Choice Mechanical LLC provides comprehensive HVAC Residential services tailored to meet the comfort needs of homeowners. Our experienced team specializes in installing, repairing, and maintaining residential heating, ventilation, and air conditioning systems. We offer a range of services, including AC installation and repair, heating system maintenance.


Debbie Armstrong
Debbie Armstrong
Rich was pleasant, extremely helpful and professional. He helped me diagnose a couple issues and went above and beyond what I expected. Will definitely use them again.
Elliott Brun
Elliott Brun
After discussing the my water source heat pump AC issue I was able to get a quick service scheduled. Tad was very knowledgeable on the system, and after quick diagnosis with the right tools for a heat pump, made a same day service on the unit. AC is back !
Giselle Padilla
Giselle Padilla
Great experience, Highly recommended!
B “Perk” Perkins
B “Perk” Perkins
Great experience with them. Responds quickly. Clearly knowledgeable about HVAC. Schedules quickly too. Will be using them for all my HVAC needs.