Whole-home generator cost depends on the generator’s size, the complexity of your electrical setup and whether panel or gas line upgrades are needed.

What Drives the Cost of a Standby Generator

Smaller essential-circuit systems cost less, while true whole-home setups are a larger investment. Between those two ends, these factors determine where your project lands:

  • Generator capacity: The more of your home you want to run at once, the larger the generator. Central air conditioning is usually the biggest single load, and powering it through an August outage drives the size up.
  • Essential circuits vs. the whole house: An essential-circuit system backs up a chosen set of circuits, such as the refrigerator, lights, well pump, medical equipment and one HVAC system. A whole-home system backs up everything, sometimes with load management that pauses large appliances so a smaller generator can keep up.
  • Transfer switch: Standby systems use an automatic transfer switch that senses the outage and starts the generator on its own. The size and type of switch is part of the cost.
  • Electrical panel condition: An older or crowded panel may need upgrades or a subpanel before the generator can be connected safely.
  • Fuel supply and gas line work: Most standby generators run on natural gas or propane. The existing gas line may need to be upsized or a new dedicated line run to the generator, and the gas meter may need review for added demand.
  • Placement: The unit needs a level pad with proper clearance from windows, doors and property lines, and the distance from the pad to the panel and gas supply affects material and labor.
  • Permits and inspections: Requirements vary by city, and the work must be inspected before the system goes live.

Why Central Texas Homeowners Are Adding Generators

Winter storms that bring hard freezes, summer storms that take down lines, and a grid that’s strained during extreme heat have made backup power a practical conversation rather than a luxury. A generator keeps the air conditioning running in triple-digit heat, keeps pipes from freezing in a winter outage, keeps a well pump delivering water and protects medical equipment and a freezer full of food.

Standby vs. Portable

A portable generator costs less but has to be rolled out, fueled and connected by hand, and it must never be run indoors or in a garage because of carbon monoxide. A standby generator is permanently installed, starts automatically within moments of an outage and shuts itself off when power returns, whether you’re home or not.

What to Know Before You Get a Quote

Make a list of what you truly need powered during an outage, confirm whether you have natural gas service or a propane tank, and note the age of your electrical panel. Those three answers shape most of the quote. Radiant’s licensed electricians handle home generator installation for homeowners in the Austin area, and our plumbers handle the gas line work that a generator often requires.

We provide upfront, transparent pricing during your consultation, with no surprises, just a clear plan that fits your needs and budget. You approve the written quote before any work starts.

Ready to stop worrying about the next outage? Call or schedule a generator consultation with Radiant. We’ve served Central Texas homeowners since 1999 with licensed technicians, 24/7 service and the Home Comfort Guarantee.