The answer to 'how much to fix replacement' depends on several factors, but there are some typical ranges to consider. Generally, the cost to repair or replace an HVAC system can range from a few hundred dollars for minor repairs up to several thousand dollars for a full system replacement.
Some key factors that influence the pricing include the type of HVAC system, the extent of the repairs needed, the age and condition of the existing equipment, and your local labor and material costs. It's important to get quotes from multiple local HVAC contractors to understand the specific costs for your home and situation.