Established in 1970, Westside Mechanical is one of Illinois' leading HVAC systems and service contractors, serving Chicagoland's expanded tri-state region, as well as selected national locations. Our headquarters, located in Naperville, Illinois, is a working laboratory - a 40,000-square-foot proving ground where we put the cutting edge technology behind today's total building climate control through all the paces. So when you partner with Westside Mechanical, you know you're building with the best.

Westside Mechanical has successfully designed, installed, and serviced thousands of HVAC systems, covering the full spectrum of manufacturers, technologies and HVAC applications/building systems. Our success is bolstered by our unique ability to find and fine-tune efficiencies, turning problems into solutions. See for yourself what Westside Mechanical can do for you.

Quality control is the defining measure that sets the professional contractor apart from the bidder. Westside Mechanical's network of in-house resources means we're on the job from start to finish. You have the ease of one-source accountability. We have the resources necessary to bring in your project on time and within budget - guaranteed.

Westside Mechanical's in-house resources include:


• Design/Build Engineering
• SMACNA Certified Sheet Metal Fabrication
• Pipe Fabrication
• Automated Building Controls
• Customized 24 Hour Service Maintenance Programs
• Energy Management Analysis
• Indoor Air Quality Analysis