Authority Mechanical is the premier provider of residential HVAC services here in Lake Barrington , IL, but did you know that we also are experts at light commercial HVAC service, repair and installation? We cover all things heating, cooling, sanitization and even duct cleaning. If your business operation needs professional quality HVAC service in Lake Barrington , IL you know who to call - Authority Mechanical . We are proud to offer business owners in Lake Barrington , IL routine maintenance plans for their commercial operations. Routine maintenance on your heating and cooling systems is essential for their longevity and efficiency. If you want to make the most out of your heating and cooling system investment, performing routine maintenance will provide you with the most efficient and longest lasting HVAC systems. We are proud to be a family oriented company, and employ only the best certified technicians and installers. You'll be thrilled with our service, don't hesitate to get in touch for any and all types of repair, maintenance and installation needs.