The answer to 'how much to replace electrical repair' depends on several factors, but generally the cost can range from a few hundred dollars to several thousand. The exact price will depend on the specific issue, the extent of the repair needed, the materials required, and the complexity of the work.
Some key factors that influence the cost of an electrical repair include the type of repair (e.g. replacing a switch vs. rewiring a room), the age and condition of the existing electrical system, the accessibility of the problem area, and the labor rates in your local area. It's important to get quotes from licensed electricians in your area to get an accurate estimate for your specific needs.