
Generator Transfer Switch Installation
Safe, Seamless Power Transitions—Installed by Southern Maine's Electrical Experts
Installing a generator is only half the equation—a professionally installed transfer switch ensures you can switch between utility and backup power safely and efficiently. Without a proper transfer switch, you risk dangerous backfeeding that can injure utility workers and damage your equipment.
At Josh LaFerriere Electric, we install both automatic and manual transfer switches, ensuring your generator is connected safely and in full compliance with electrical codes. For emergency situations, having a transfer switch means reliable backup power is always ready.

What Is a Transfer Switch?
A transfer switch is an electrical device that connects your generator to your home or business's electrical panel. It allows you to safely switch between utility power and generator power, preventing dangerous backfeeding into the utility grid.
Transfer switches are required by the National Electrical Code (NEC) for any generator connected to a building's electrical system. They are essential for both safety and legal compliance. We handle all electrical upgrades to ensure your system meets current standards.
Transfer Switch Options
Automatic Transfer Switches (ATS)
Designed for standby generators, an ATS automatically detects a power outage and switches your home to generator power within seconds—without you lifting a finger.
- Seamless automatic switchover
- No manual intervention required
- Ideal for whole-home standby generators
- Returns to utility power automatically
Manual Transfer Switches
Designed for portable generators, a manual transfer switch gives you a safe, code-compliant way to connect your generator to your panel and select which circuits to power.
- Affordable backup power solution
- Safe connection for portable generators
- Select specific circuits to power
- Eliminates dangerous extension cord setups
Included in Every Installation
On-Site Load Assessment
We evaluate your electrical needs to size the switch correctly.
Panel Connection & Wiring
Professional connection to your electrical panel.
Permits & Code Compliance
We handle all permitting and ensure full code compliance.
Circuit Labeling
Clear labeling of all circuits for easy identification.
User Walkthrough
Complete training on how to safely operate your system.
Why Choose Josh LaFerriere Electric?
Licensed & Insured
Full licensure and insurance for your protection on every job. Explore our residential services.
Code Compliant
All installations meet NEC and local electrical code requirements. We also install surge protection.
Expert Installation
Experienced with both automatic and manual transfer switch systems for commercial and residential properties.
Complete Service
From assessment to installation to walkthrough — we handle everything, including EV charger and hot tub wiring projects.
Need a Transfer Switch Installed?
Contact us today for a free estimate. Serving Portland, South Portland, Westbrook, Scarborough, Falmouth, Yarmouth, Freeport, Brunswick, Old Orchard Beach, Biddeford, Gorham, Standish, Sebago, and Southern Maine. We also offer bathroom fan installation, remodel wiring, commercial emergency repairs, commercial upgrades, and commercial panel replacements. Visit our home page to learn more.
