The answer to 'how much is lighting installation upgrade' is that the cost can vary significantly depending on several factors. Generally, a basic lighting installation upgrade can range from a few hundred dollars for a simple project up to $1,000 or more for a more complex job. The main factors that influence the cost include the number of fixtures being installed, the type of lighting (e.g. LED vs. traditional), the complexity of the electrical work required, and whether any drywall or other construction is needed.
It's important to get quotes from local licensed electricians, as they can assess your specific needs and provide an accurate estimate. They will also be able to advise on the best lighting options and ensure the work is done safely and up to code.