The answer to 'how much to replace lighting installation' is that the cost can vary significantly depending on several factors. Typically, the cost for a professional to replace lighting installation in a home can range from a few hundred dollars to several thousand dollars, depending on the scope of the project.
Some of the key factors that influence the cost include the number of light fixtures being replaced, the type of lighting (e.g., recessed, pendant, wall sconces), the complexity of the electrical work required, the accessibility of the work area, and the labor rates in your local area. Additionally, the cost may be higher if the project requires upgrading or modifying the electrical system to accommodate the new lighting.