Cambridge has invested heavily in research and development to offer HTHV (high temperature heating and ventilation) products that significantly save energy and reduce operating costs. Whether in new construction or existing facility retrofits, Cambridge’s designing, manufacturing and testing processes ensure that each HVAC system is certified safe with unsurpassed product quality.

The Heating and Air Conditioning Contractors at Hoffmann Brothers have provided the greater St. Louis area with reliable and professional services for more than 40 years. They incorporate modern HVAC and plumbing technology. The Hoffmann Brothers’ Heating team install or repair heating systems of any brand. Some appliance repairs offered include: Refrigerator Repairs, Microwaves, Dishwasher Repairs, Freezer Repairs, etc.

Since 1979, Indoor Comfort Team has performed heating and air conditioning services for residential customers across greater St. Louis, including Metro East suburbs in St. Clair County, Illinois. They provide quality services with a full guarantee. They're a family-owned & operated HVAC company, offering superior residential HVAC services to St. Louis & surrounding areas.

William Tao & Associates, Inc. (WTA) is a multi-discipline engineering firm providing innovative services in engineering and energy-effective building systems. WTA provides a wide range of engineering services including mechanical, electrical, plumbing, fire protection, building automation, structural, civil, master planning, and commissioning