During Ontario winters, your furnace becomes one of the most important systems in your home. When it works properly, you barely notice it. But when furnace issues start to appear, comfort can quickly turn into stress especially during extreme cold. Homeowners across the Greater Toronto Area often search for furnace repair when heating problems arise. Understanding common furnace issues, knowing when repairs are needed, and recognizing when emergency furnace repair is required can help protect your home and avoid bigger problems.