The answer to 'how much is light fixture upgrade' is that the cost can vary widely depending on several factors. In general, a basic light fixture upgrade for a single room can range from $100 to $500 or more, not including labor costs. The final price will depend on the type of fixture, the complexity of the installation, and whether any electrical work is required.
More expensive upgrades, such as installing recessed lighting or chandeliers, can cost $500 to $2,000 or more per fixture. The cost can also be affected by the age and condition of the existing wiring, the accessibility of the installation site, and the need for any structural modifications. It's essential to get local quotes from licensed electricians to get an accurate estimate for your specific project.