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  • Harold Heating and Cooling Website
    (705) 357-2010
    16700 Sideroad 17A, Sunderland, ON L0C 1H0

    Harold Heating & Cooling provides residential and commercial heating, cooling, and ventilation solutions across Ontario. They install high-efficiency furnaces, in-floor radiant heating, central air conditioners, heat pumps, and backup power systems. The family-owned firm also offers air quality imp…

  • Modern HVAC Inc Website
    (705) 308-4822
    840 Durham Rd 10, Sunderland, ON L0C 1H0

    Modern HVAC Inc designs, installs and services dual-fuel heat-pump and furnace systems for residential customers across Ontario. They integrate electric heat pumps with propane, natural-gas or oil furnaces to provide efficient heating, cooling, hot-water and indoor-air-quality solutions, offering f…