
A&G Heating & Air
Whole Home Standby Power for Fresno Homeowners
Fresno summers push the grid harder than almost anywhere in California. When a transformer drops on a 110-degree afternoon, the air conditioning goes with it. A&G Heating & Air installs whole home backup generators in Fresno so your cooling, refrigeration and essential circuits keep running until utility power returns.
Fresno's outages rarely arrive at a convenient hour. Peak-demand strain in July and August, equipment failures in older neighborhoods near Tower and Fig Garden, and planned shutoffs all leave homes without cooling for hours at a time. A permanently installed standby generator senses the outage, starts automatically and transfers the load — no cords, no fuel cans, no waiting for someone to be home.

Sizing is where most generator projects succeed or fail. Fresno homes commonly run three to five tons of air conditioning, and in many cases a second system for an addition or upstairs zone. We start every backup generator installation with an actual load calculation rather than a guess — measuring AC tonnage, furnace blower draw, kitchen appliances, well pumps and any EV charging before recommending a unit.
That calculation determines whether an essential-circuits unit is enough or whether a true whole home backup generator makes sense. Homeowners who want the air conditioning to keep running through an outage almost always need the larger option, because compressor startup draw is the single biggest demand on the system.

Generator installation in Fresno requires electrical and mechanical permits, and the unit has to respect setback distances from windows, doors and property lines. On tighter lots in central Fresno that placement decision takes real planning, especially when the gas meter and electrical panel sit on opposite sides of the house.
We handle the permitting, set the pad, coordinate the natural gas or propane connection, and tie the automatic transfer switch into your panel. Every installation is load-bank tested and the weekly self-test is programmed before we hand it over.
Brownouts and unstable power are hard on compressors and control boards. A properly installed standby system delivers clean power to the equipment you have already invested in — which matters if we also handled your air conditioning installation or heating replacement. Generator work pairs naturally with the rest of our Fresno HVAC services, and financing is available for qualifying customers.
Learn more about whole home backup generator installation in the Central Valley, our air conditioning services, our heating services, available HVAC financing and our full service area.
We will walk your property, run the load calculation and give you an installed price with no pressure. Call A&G Heating & Air or request a free quote to get started on backup generator installation in Fresno.
We also install home backup generators in these nearby Central Valley cities.
Get started today with a free quote. We serve Fresno, Tulare, Kings & Merced Counties.