Generator Installation (Whole Home & Standby Generators)

Keep your home or business powered during outages with a professionally installed standby generator. O’Brien Electrical Contracting provides safe, reliable, and code-compliant generator installations built to perform when you need it most.

Never Lose Power Again

Power outages aren’t just inconvenient — they can disrupt your home, business, and safety.


With a professionally installed standby generator, your power is restored automatically within seconds.


At O’Brien Electrical Contracting, we specialize in whole-home generator installations, including proper sizing, transfer switches, and full system integration.


What’s Included in a Generator Installation


We handle the electrical side of your generator installation from start to finish:

  • Installation of automatic transfer switch (ATS)
  • Generator electrical connections and wiring
  • Control wiring between generator and ATS
  • Dedicated circuits or whole-home integration
  • Proper grounding and bonding
  • System testing and startup verification
  • Coordination with other trades (gas/plumbing if needed)

Note: Gas piping and fuel connections are typically completed by a licensed plumber or gas contractor.

Do You Need a Backup Generator?

A standby generator is a smart investment if:


  • You experience frequent power outages
  • You work from home or rely on electricity daily
  • You have a sump pump or well system
  • You want to protect appliances and equipment
  • You own a business that can’t afford downtime
  • You want peace of mind during storms

How a Standby Generator Works


  1. Power outage occurs
  2. Generator detects loss of power
  3. Automatic transfer switch activates
  4. Generator starts and restores power within seconds
  5. When utility power returns, system switches back safely



No extension cords. No manual setup. Fully automatic protection.

Types of Generator Systems We Install


Whole-Home Generators
Power your entire home during an outage.


Essential Circuit Generators
Power only critical circuits like refrigerators, heat, and lighting.


Manual vs Automatic Transfer Systems

We install both, but most customers choose automatic systems for convenience and safety.

Our Generator Installation Process


Step 1: Site Evaluation
We assess your electrical system, power needs, and ideal generator setup.


Step 2: System Design
We determine proper sizing and layout for your generator and transfer switch.


Step 3: Permits & Coordination
We handle electrical permits and coordinate with gas contractors if needed.


Step 4: Professional Installation
Clean, code-compliant installation of all electrical components.


Step 5: Testing & Startup
We test the system to ensure proper operation and automatic transfer.

Benefits of Installing a Standby Generator

  • Automatic power restoration
  • Protects your home and appliances
  • Keeps essential systems running
  • No need for extension cords or manual setup
  • Adds value to your home
  • Peace of mind during storms and outages

Be Ready Before the Next Outage

Don’t wait until the power goes out.



Contact us today to schedule service or request an estimate.