Standby generators
Permanently installed generators that start automatically when the power goes out.
Backup power for Fremont homes: standby generators, transfer switches and portable generator inlets, sized by load calculation and permitted.
Serving Mission San Jose, Niles, Irvington, Centerville, Glenmoor and Ardenwood and the rest of Fremont. Share your address to confirm availability.

Standby generators and portable generator hookups installed with the right transfer equipment, so the house is powered safely and the utility line is never back-fed.
Permanently installed generators that start automatically when the power goes out.
An outdoor inlet and interlock or transfer switch, so a portable generator can power selected circuits without extension cords.
Manual or automatic transfer equipment sized to the generator and the loads you want to keep on.
Fridge, furnace blower, internet, lights and medical equipment moved to a backed-up subpanel.
Generator size matched to what you actually need to run, not guesswork.
Electrical permit, city inspection and utility requirements handled by HAXX.
PG&E has used Public Safety Power Shutoffs in Fremont's hill edges, including areas off Mission Boulevard into Niles Canyon and along Vargas Road. Elsewhere, storms cause occasional outages.
A listed inlet with a panel interlock lets a portable generator feed chosen circuits safely.
Automatic units with a transfer switch, sized to the loads you want to keep on.
HAXX plans placement for clearances and neighbors and files the City of Fremont permit.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
“The technician from Haxx immediately pointed out multiple violations of the National Electrical Code and explained that the wiring was overheating and could potentially become a fire hazard. They offered to redo the installation the correct way, pulled the proper permit, and installed the EV charger safely and professionally. The city inspection passed without any issues.”
“Recently, my dishwasher stopped working, and they discovered it was actually an outlet issue. Not only did they diagnose it quickly, but they also fixed the outlet—saving me from calling an electrician. Reliable, professional, and skilled at handling both appliances and electrical issues.”
“I purchased a couple of ceiling fans and was reluctant due to how old my house was with old wiring so I wanted someone professional and trustworthy. They have been both!”
Existing equipment, home layout and what you want to improve.
Sizing, airflow, equipment placement and electrical needs.
Options, exclusions, permit requirements and any eligible incentives.
Confirm equipment, scheduling and handover details with HAXX.
A closer look at recent electrical work by HAXX. Projects in Fremont are marked with the city.

On site during a commercial VAV box repair: access above a suspended ceiling, equipment and the work in progress.
Explore recent projects
Franklin gateway and span drive commissioning.

Server room subpanels.

Sauna circuit installation.

Compressor replacement.

Main panel installation.

Main panel upgrade.

Main panel replacement.

Span smart panel installation.
Only through a transfer switch or a listed inlet with an interlock. HAXX installs both.
That depends on which circuits must stay on. A load calculation sets the size.
No. Back-feeding through an outlet is dangerous for you and for utility workers. Use an inlet with an interlock or a transfer switch.
It depends on the circuits you want to keep powered. HAXX lists your critical loads and sizes the generator to them.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.
