McKnight Heating And Air Conditioning of Barrie, ONCall for Heating & Ventilation Contractors, furnaces, fire places, air conditioners, sheet metal duct work, pool heatersBarrie, ON furnaces , fire places, air conditioners, sheet metal duct workWhen you are wanting Heating & Ventilation contractors for installations of furnaces, fireplaces, air conditioners, sheet metal duct work, pool heaters, radiant heaters, unit heaters, boilers, piping natural gas and propane for all applications. we service, install and repair h.v.a.c. equpment for all heating, air conditioning applications. We charge a flat rate of ONLY $65.00 hr for all services, repairs and maintenancés 24/7, this is the most competitive rate in Simcoe county and area.McKnight Heating And Air Conditioning of Barrie listed in: more... See more text