About Air Alliance Team Three great companies, one new name. Air Alliance Team brings together some of the most trusted experts in heating and cooling in the Saint Charles area. Bizelli Heating and Air Conditioning and A’s Heating and Cooling have joined with Sauer Cooling and Heating to offer HVAC expertise that keeps homeowners comfortable all year long. Our combined staff of technicians brings years of knowledge, fully trained on the latest industry products, maintenance and technology. We provide professional, high-quality work with the goal of total customer satisfaction. Air Alliance Team offers a wide range of state-of-the-art Lennox® HVAC products that combine a history of quality craftsmanship with innovative technology. And as a Dave Lennox Premiere Dealer, you can count on Air Alliance Team to find products that are both energy efficient and budget friendly to meet your home-comfort needs. We’re committed to your whole-home comfort. From performing repairs and maintenance to installing an entire replacement HVAC system, we’re ready to help. Call Air Alliance Team in Saint Charles at 636-229-1544 or schedule an appointment online to get started.