Generator & Backup Power in Union City, CA
Generac standby generators and battery backup, installed by a licensed team — automatic power when the grid drops, sized for your home and permitted to code.
- Generac automatic standby generators
- Automatic transfer switch
- Whole-home or essential-circuit backup
- Permitted, inspected, gas & electrical coordinated
- Battery backup option (no fuel, no noise)
Licensed C-10 · CSLB #1114918 · Permitted & inspected
Certified & authorized installer
Generator & Backup Power in Union City — done right
Every job in Union City starts with a free assessment and your home's Electrical Score, is sized by a real NEC load calculation, and is permitted and inspected in Alameda County. No guesswork, no cutting corners.
Generac automatic standby generators
Automatic transfer switch
Whole-home or essential-circuit backup
Permitted, inspected, gas & electrical coordinated
Battery backup option (no fuel, no noise)
Your local generator installation team in Alameda County
Astral is a licensed C-10 electrical contractor. We know the local building departments and utilities, pull every permit, and stand behind the work. Union City homeowners get the same licensed, warrantied generator installation we'd put in our own home.
Generator & Backup Power nearby
Other electrical services in Union City
Not sure what your Union City home needs?
Start with your home's Electrical Score — a licensed C-10 electrician grades your panel, service and wiring 0–100 for safety and capacity. Know before you buy an EV, add solar, or sell.
generator installation in Union City — FAQ
What size generator do I need in Union City?+
It depends on the circuits you want to keep running. We size the generator (or battery) to your home's real load and your priorities — whole-home or just the essentials.
Do you handle the permit and transfer switch?+
Yes — we install the automatic transfer switch, coordinate gas and electrical, and permit and inspect the whole job in Alameda County.
Generator & Backup Power in Union City?
Book your free assessment with a licensed C-10 electrician today.