The answer to 'what does furnace repair do' is furnace repair is the process of diagnosing and fixing issues with a home's furnace or heating system. This can include repairing or replacing malfunctioning components, cleaning and maintaining the furnace, and ensuring the system is operating safely and efficiently.
Furnace repair is an important service for homeowners, as a properly functioning furnace is crucial for keeping a home warm and comfortable during the colder months. A professional HVAC technician will use their expertise to identify the root cause of any furnace issues and implement the necessary repairs or replacements to restore the system to optimal performance.