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

The cost to install a home standby generator is finalized after a free in-home assessment because it depends on generator size, fuel source, and site conditions, and Berkeys is currently offering $1,975 off a whole-home backup generator. Installation typically takes 1 to 2 days and includes the generator, automatic transfer switch, gas line connection, and a concrete pad, with Dallas permits and inspections handled by our team. For homeowners considering a smaller option, a Generac 10/8.5kW portable package is $3,999 and includes installation, delivery, an inlet and transfer switch, a 1-year parts and labor warranty, and a free 10-ft power cord.

Key cost drivers your electrician will review on site:

• Service-entrance upgrade or subpanel needs
• Trenching length for gas and electrical runs
• Gas meter or propane tank sizing changes
• Placement clearances and noise constraints

Schedule an on-site evaluation to confirm your exact price and permit path. <br/> Updated: 2026-03-13 <br/> Need help in Lucas, TX? Call (214) 612-0133 or book online. “Michael Stephens did an amazing job in installing our backup generator to our house.” — Conny C.