Here at Althoff Industries, Inc., quality workmanship is important to us. We aim to provide the best residential & commercial services for the Chicagoland community at the most affordable rates. We believe firmly that this can be achieved, and we won’t stop until we reach this goal. Challenges accepted!

Established in 1991, Square HVAC Experts is a family-owned business with extensive experience installing air-conditioning systems. The company has been completing many complex projects during these 25 years in the industry, which gives us confidence in the professionalism of our employees and the quality of work performed. Our company provides a full spectrum of work of any level of complexity. Our team consists of highly qualified professionals, who have been in the industry for no less than 6 years. We

Here at Althoff Industries, Inc., quality workmanship is important to us. We aim to provide the best residential & commercial services for the Chicagoland community at the most affordable rates. We believe firmly that this can be achieved, and we won’t stop until we reach this goal. Challenges accepted!