OneStop Pro has been serving DuPage County and the Greater Chicagoland area since 2007. Our mission from the start has been the complete and total satisfaction of the people for which we work, as well as providing the most professional and cost-effective solutions for all of our projects. OneStop Pro is a full service HVAC and electrical contractor. We bring our combined talents to your home or business to answer any and all challenges that may confront you. Our motto, Surpassing Expectations, is our promise to you. Dan Foss has 12 years in the construction industry, is a licensed Chicago electrician and EPA certified for HVAC. Robert Fraser brings 30 years of construction experience, and is the company sales manager.