How much does it cost to install a standby generator at home?

Home standby generator costs depend on system type and home power needs. Interlock kit with a portable generator: $900–$1,500 for installation (generator not included). Manual transfer switch installation: $1,500–$2,500+. Whole-home standby with automatic transfer switch: $15,000–$25,000+. Financing options are available. Many installation offers note a 5-year warranty. A technician confirms final costs after inspection in cities we serve, like McKinney and Melissa.

<br/> Updated: 2026-01-02 00:00:00 <br/>

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