Cost of converting R12 to R134a?

The cost of converting an R12 refrigeration system to R134a can vary widely, typically ranging from $300 to $1,000 or more, depending on factors such as the condition of the system, the need for new components (like an expansion valve or compressor), and labor costs. Additional expenses may include the recovery and recycling of R12, the purchase of R134a refrigerant, and any necessary system modifications. It's advisable to get multiple quotes from professionals to ensure a fair price.