Lea Heating & Air Conditioning is an award winning HVAC company in East Dundee, IL. Call us anytime for emergency furnace or A/C repair service, or visit our showroom weekdays from 8 am to 5 pm. We install, service and repair a range of heating and cooling equipment. Contact us today to schedule service in Elgin, Sleepy Hollow, Crystal Lake & Algonquin, IL.