The answer to 'how much does generator installation cost' is that the cost can vary widely depending on several factors. Typical ranges for a whole-home generator installation can be anywhere from $3,000 to $15,000 or more, depending on the size and type of generator, the complexity of the electrical work required, and the labor costs in your local area.
Key factors that influence the cost include the generator's wattage and fuel type (natural gas, propane, or diesel), the accessibility and condition of your home's electrical panel, the need for any additional electrical upgrades, and the complexity of the installation itself. Professional labor rates, permitting fees, and the cost of any necessary site preparation work can also add significantly to the overall project cost.