The answer to 'how much to replace junction box local' is that the cost can vary widely depending on several factors. Replacing a junction box typically ranges from $150 to $500 for a licensed electrician, but the exact price will depend on your location, the complexity of the job, and the materials needed.
Some key factors that influence the cost include the size and type of junction box, whether it needs to be relocated, the accessibility of the electrical wiring, and any additional work required like upgrading the circuit breaker panel or rewiring. It's important to get quotes from multiple licensed electricians in your local area to get the best price.