A generator is only as reliable as the system that connects it — and that’s where a transfer switch comes in. At Expert Electric Group, we provide expert transfer switch installation for both residential and commercial backup power systems. Whether you need an automatic or manual setup, we’ll ensure your switch works safely and seamlessly with your generator.
Safely connect your generator to your home’s electrical panel with a professionally installed transfer switch. Whether you need an automatic switch for seamless power or a manual kit for a portable generator, we ensure a safe connection that prevents dangerous backfeeding.
Professional Transfer Switch Installation for Backup Power
Transfer switch installation is a critical component of any generator system, allowing safe and seamless power transfer during outages. A properly installed transfer switch prevents backfeeding and protects utility workers while ensuring your generator powers essential circuits.
We install transfer switches for homes in Pasadena, Altadena, Malibu, and Calabasas, following strict electrical codes and manufacturer requirements. Our electricians determine the correct switch type, integrate it with your generator, and test system functionality before final inspection.
Professional installation ensures your backup power system operates safely and reliably when it matters most.
What Is a Transfer Switch?
A transfer switch connects your backup generator to your main electrical panel, allowing it to take over when the utility power goes down. It prevents dangerous backfeeding, protects utility workers, and allows for safe, smooth power transitions.
Types of Transfer Switches We Install:
- Automatic Transfer Switches (ATS): Instantly switches power to your generator when an outage occurs — ideal for whole-home and commercial systems
- Manual Transfer Switches: A cost-effective solution for smaller systems or portable generators, requiring user operation during outages
- Load-Specific Switching Panels: Direct backup power to essential circuits only
Our Installation Includes:
- Transfer switch sizing and product selection
- Integration with your generator and main panel
- Wiring, conduit, and circuit balancing
- Permit handling and inspection coordination
- Full system testing and walk-through
How Transfer Switch Installation Works
Our installation follows four clear stages:
- Site Assessment — We evaluate your electrical panel, generator location, and service entrance to determine the correct switch type and placement
- Permitting — We handle all permit applications and utility coordination required by your local jurisdiction
- Wiring & Integration — We connect the switch to three key points: utility lugs (incoming grid power), generator lugs (backup power source), and load lugs (your home’s circuits). For automatic switches, control wires are added to signal the generator to start and manage the transfer sequence
- Testing & Inspection — We simulate a power outage to confirm the switch activates correctly, then coordinate the final city inspection
Why Choose Expert Electric Group?
- Licensed & insured electricians
- Generac Certified Installer
- Over 15 years of generator and panel experience
- Clean, code-compliant installations
- Fast turnaround and expert guidance
Frequently Asked Questions
Is a transfer switch required for generators?
Yes. Transfer switches are required for safe generator operation and code compliance.
How long does installation take?
Most installations are completed in one day.
Can a transfer switch be added to an existing generator?
Yes. We can retrofit transfer switches to existing systems.
How much does transfer switch installation cost in Los Angeles?
Transfer switch installation typically ranges from $500 to $1,500 for a manual or load-center switch, and $1,000 to $3,000+ for a whole-home automatic transfer switch, depending on panel complexity, number of circuits, and permit fees. A whole-home backup system with generator and ATS together generally falls between $8,000 and $16,000 installed.
Should I choose an automatic or manual transfer switch?
An automatic transfer switch (ATS) is ideal if you want hands-free backup power — it detects outages and switches within seconds, with no action required. A manual transfer switch is a cost-effective option for portable generators where you’re present during outages. If your main panel has available slots, an interlock kit can also be a budget-friendly alternative to a full manual switch.
