Standby Generators

How Much Does It Cost to Install a Whole-House Generator?

Last updated: February 17, 2026

Breaking Down Generator Installation Costs

Installing a standby generator involves several cost components beyond the generator unit itself. Understanding these costs upfront helps you budget accurately and avoid surprises during the installation process.

Equipment Costs

The generator unit and an automatic transfer switch are the two primary equipment purchases. Generator pricing varies significantly by brand, output capacity (measured in kilowatts), and features. Transfer switch costs depend on amperage rating and whether you select a whole-house or load-managed switch. Contact IB Lighting for current pricing on specific models.

Installation Labor

Professional installation typically runs between $3,000 and $6,000 depending on your region, the complexity of the installation, and the electrician or dealer performing the work. This covers electrical wiring, transfer switch installation, generator placement on a concrete or composite pad, and connection to your fuel supply.

Additional Cost Factors

Several factors can affect total project costs. A concrete pad for the generator base may be needed if one does not already exist. Gas line extension from the meter to the generator location adds to plumbing costs. Permit fees vary by municipality, and some areas require separate electrical and gas permits. In areas with strict zoning requirements, setback distances from property lines may dictate specific placement that increases wiring runs.

Getting an Accurate Estimate

We recommend getting at least two quotes from licensed generator installers in your area. A reputable installer will perform a site survey, review your electrical panel, and provide a detailed written estimate. Our team at IB Lighting can also help you spec the right equipment before you engage an installer, which can save time during the quoting process.

Call (800) 674-9019 to discuss equipment options and get expert recommendations for your project.

Expert Source: This answer was prepared by the IB Lighting technical team. For additional guidance specific to your project, call us at (800) 674-9019 or contact us online.