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

Installing a home standby generator with Elmer’s Home Services typically costs $15,000–$25,000. Cost mainly reflects the generator’s power capacity and the scope of gas and electrical integration needed for safe, code-compliant operation. Final pricing is confirmed after an on-site assessment. A right-sized unit that matches your true starting loads often costs less than oversizing every circuit. Our licensed, Generac-certified team completes most installs in about a day, and we regularly support homes in the greater Alamo Heights area. Financing is available through Generac with 0% interest when paid in full within 18 months.

Key factors that change the price:

  • kW rating and model (22, 24, 26 kW vs larger systems up to 250 kW)
  • Fuel and meter/tank work (natural gas capacity or propane tank setup)
  • Electrical scope (transfer switch type, load management, panel upgrades, surge protection)
  • Site conditions (distance to utilities, pad, trenching)

Schedule an in-home assessment to size the system correctly and receive a firm, itemized quote. <br/> Updated: 2026-03-11 <br/> Need help in Alamo Heights, TX? Call (210) 489-1389 or book online.

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