The answer to 'how much to replace generator installation' is that the cost can vary significantly depending on several factors. Typical generator replacement installation costs can range from $2,000 to $10,000 or more, depending on the size and complexity of the job.
Some key factors that influence the cost include the size and power output of the generator, the accessibility and complexity of the installation site, any necessary electrical panel upgrades, and the labor rates in your local area. Professional installation by a licensed electrician is highly recommended for safety and code compliance.