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Home Generator Replacement & Installation Services for Northern Virginia

Looking to install or replace a home generator? C.D. Shanahan is your trusted partner for Generac generator installation services throughout Northern Virginia. Our licensed electricians can replace your existing generator with a new system, or install a new generator that will provide your home with dependable backup power when you need it most. With a five-star reputation, we prioritize reliable service and customer satisfaction for all your home’s power needs. 

Our dedicated team expertly installs leading generator brands, including Generac, ensuring reliability and lasting results. Whether you need a new generator or a replacement, count on C.D. Shanahan to keep your home powered during any outage.

generator generac

Our Electricians Make Sure Your Generac Generator is Ready When You Need It

If you notice performance issues with your existing home generator, or want to install a generator for the first time to provide dependable and reliable backup power, our team can help. 

Reliable Backup Power

Properly functioning home generators ensure your home has dependable backup power to keep essential systems running during outages.

Expert Installation

Our professional installation guarantees proper generator setup and functionality, maximizing safety and efficiency of your generator.

Peace of Mind

Knowing your home is protected from power interruptions due to weather or power outages, provides assurance and comfort for your family.

Increased Home Value

A professionally installed generator is a valuable asset, enhancing your home's market appeal and preparedness.

Generators FAQs

  • Portable Generators: Gasoline or propane-powered; moveable; power a few circuits at a time.
  • Standby (Whole House) Generators: Permanently installed, connected to natural gas or propane; automatically starts during outages; powers the entire home.
  • Inverter Generators: Quiet, fuel-efficient, and safe for sensitive electronics.

Consider:

  • Power needs: Determine the total wattage of essential appliances and systems.
  • Fuel type: Gasoline, propane, diesel, or natural gas.
  • Run time: How long the generator can operate on a full tank.
  • Installation type: Portable vs. permanent standby.

No. Generators produce carbon monoxide (CO), which is deadly in enclosed spaces. Always operate generators outdoors, away from windows, doors, and vents, with proper ventilation.

  • Use approved fuel containers
  • Store in a cool, ventilated location away from flames or heat sources
  • Rotate fuel regularly to avoid degradation
  • Consider propane for long-term storage
  • Portable generators: 10–15 years with proper maintenance
  • Standby generators: 15–25 years, depending on load and maintenance