MEET THE TEAM BEHIND IMPERIUM
HEATING & COOLING

Bryant and Aliona Bonano, founders of Imperium Heating & Cooling, sitting together outdoors in St. Louis on a sunny day.

Bryant and Aliona Bonano, owners of Imperium Heating & Cooling

Our Story

We’re Bryant and Aliona Bonano, the husband-and-wife team behind Imperium Heating & Cooling. We’re happy to share a vision that drives everything we do: delivering HVAC solutions that enhance property value and provide long-term comfort for the people who rely on them.

Bryant’s journey in HVAC began at sixteen with a summer job at a heating and cooling plant in Ohio—an opportunity guided by his father that sparked a deep interest in mechanical systems and laid the foundation for a lifelong career in the trades. After earning his electrical degree through South Tech’s technical program, he worked as a licensed electrician in Illinois before returning to St. Louis in the early 2000s. There, he gained hands-on experience installing and maintaining commercial HVAC systems—work that reignited his early passion for mechanical systems. Along the way, he built lasting relationships with local developers and property managers, earning a reputation for reliability, professionalism, and integrity.

In 2012, we founded Imperium with a clear purpose: to provide honest, high-quality HVAC service rooted in trust, technical expertise, and a deep commitment to the city we’re proud to call home. From fieldwork to behind-the-scenes operations, we work together to ensure every project is completed with care, precision, and a standard of excellence our clients can rely on—start to finish.

Trusted by Those Who Know

“We needed to replace our two condo HVAC units in our multi-story penthouse condo in downtown St. Louis, and received bids from a few contractors. It was going to be an expensive endeavor, so we wanted to ensure it was done right.

Bryant of Imperium HVAC was recommended to me by a friend who was a condo building property manager as someone who did excellent, quality work at an affordable price - he exceeded my expectations, and beat the other quotes on price.

Bryant is a very professional, skilled, responsive and affordable contractor who is super mindful of your time, schedule and your home, and overall a great guy who does excellent work. He explained all options available at the quote stage, completed the job quickly, and left the work areas spotless. After our experience with Bryant, we also had him quote out replacing our third floor, rooftop mini-split and for when we decide to replace it, and he will get all of our HVAC replacement/maintenance in the future.

I highly recommend Imperium for anyone needing HVAC work done - they will treat you right.'“

-Dan Sanchez

Our Mission

Outline drawing of a handshake between two hands symbolizing partnerships.

At Imperium, comfort is the foundation of everything we do. From routine maintenance to complex retrofits, we approach every project with precision, care, and a commitment to quality. We know that no two properties are the same, which is why we craft solutions tailored to the specific needs of each space.

Our mission is to elevate the quality of HVAC service in St. Louis by making lasting comfort a standard experience for all.

Thank you for Your interest In Imperium Heating and Cooling

We value the opportunity to discuss how we can help you achieve lasting indoor comfort.