Vanguard Heating & Air Conditioning Inc.

Vanguard Heating & Air Conditioning has served the Chicagoland area since 1979, handling heating and air conditioning installation, repair and maintenance for all brands of systems. The company lists furnaces, boilers, heat pumps, radiant in-floor heat, air cleaners, humidifiers, UV air purification and thermostats among its equipment lines, including Ruud, Bosch, Viessmann and Aprilaire products.

The business is locally owned and operated, and it says its installers and certified technicians are its own employees rather than subcontractors. Free estimates are offered, and the company also reports that much of its work comes from referrals. Emergency services are available on Sundays, and the office in Palatine is open weekdays and Saturday mornings.