The answer to 'how much to replace HVAC repair' is that the cost can vary widely depending on several factors. Generally, a full HVAC system replacement can range anywhere from $3,000 to $15,000 or more, depending on the size of your home, the complexity of the installation, and the quality of the equipment.
Some key factors that influence the cost include the type of HVAC system (e.g. central air, heat pump, furnace), the energy efficiency rating, the brand and model, the complexity of the installation, and any necessary ductwork or electrical work. Additionally, labor costs can vary significantly by location and the experience level of the HVAC contractor.