Standby generators
Permanently installed generators that start automatically when the power goes out.
Backup power in Colma: standby generators, generator inlets and transfer switches, sized from a load calculation and installed with a permit.
Serving Sterling Park, the El Camino Real corridor, Hillside Boulevard, Serramonte Boulevard and the 280 Metro Center area and the rest of Colma. 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.
Outages can hit any Peninsula town. Home offices, medical equipment and refrigeration, and businesses that cannot close, are the usual reasons to plan backup power.
A listed inlet and panel interlock lets a portable generator feed selected circuits safely.
Automatic generators with a transfer switch, sized to the circuits you need.
HAXX plans location around setbacks and neighbors and handles the Town of Colma permit.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
“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!”
“Prompt and professional - they helped run a new thermostat wire through a wall and crawl space.”
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.

On site during a commercial VAV box repair: access above a suspended ceiling, equipment and the work in progress.
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Only through a transfer switch or a listed inlet with an interlock. Backfeeding through an outlet is dangerous.
It depends on the circuits you want to run. HAXX sizes it from a load calculation.
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.
