Generac generators in San Antonio, sized and installed

Home standby generators

Generac's Guardian home standby line includes the sizes below, each rated by Generac for propane and for natural gas. The right one is the smallest that carries your load list, including the air conditioning starting.

• 14kW: 14,000 watts on propane, 14,000 watts on natural gas
• 18kW: 18,000 watts on propane, 17,000 watts on natural gas
• 22kW: 22,000 watts on propane, 19,500 watts on natural gas
• 24kW: 24,000 watts on propane, 21,000 watts on natural gas
• 26kW: 26,000 watts on propane, 22,500 watts on natural gas

How sizing works

We list your loads room by room, check the panel, the service and the gas meter, and recommend the unit and the transfer switch. The visit is free and you get a written price after it.

Installation

We set the unit, install the transfer switch, wire it to your panel, pull the electrical permit and start it up under load. Gas line and gas connection are not included. That is a licensed plumber's work and we quote it separately.

What a Generac costs installed

An installed price is the unit, the transfer switch, the electrical work, the gas line, the placement and the permit. What moves each one, and how to get your own number, is in the cost guide.

Commercial generators

Restaurants, medical offices, offices with network closets and other businesses that cannot lose power get the same sizing, transfer switch and permit work at commercial scale.

Generac installation by city

Each city in our San Antonio service area has its own utility, permit office and contractor registration. These pages cover what applies where you live.

Maintenance and repair

Oil, filters, plugs, the battery and a transfer switch test, at the intervals in the owner's manual for your model, and repairs at a written price before the work.