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Whole House Generator Installation in Delaware: Sizing, Cost and What to Expect

By the electricians at Despot Electric · Serving all of Delaware

Nor'easters, summer thunderstorms and the occasional hurricane remnant mean Delaware homeowners from Lewes to Wilmington lose power more than they would like. A whole house standby generator turns a multi-day outage into a ten-second blink. Here is what to expect from a generator installation.

How a standby generator works

The generator sits outside on a pad, connected to natural gas or propane. An automatic transfer switch senses the outage, starts the generator and switches your home over — no extension cords, no going outside in the storm.

Sizing your generator

Whole-home coverage for a typical Delaware house is 18–26 kW. Essential-circuits coverage (fridge, well pump, furnace, a few lights) can be done with 10–14 kW. We calculate your actual load rather than guessing.

What is included in installation

  • Concrete or composite pad
  • Generator placement and clearances
  • Automatic transfer switch wiring
  • Coordination with your gas or propane provider
  • Permit and inspection
  • Startup, testing and walkthrough

Battery backup alternative

For homes without gas, or where noise is a concern, we also install home battery systems. Ask about pairing with whole house surge protection to protect the investment.

Frequently asked questions

How long does a generator last?

With annual maintenance, a quality standby generator lasts 20–30 years.

Do I need a permit?

Yes — electrical and often gas permits, which we handle.

How much does a whole house generator cost installed?

Typically five figures depending on size and fuel line work. We quote flat after a site visit.

Talk to a Delaware electrician

Questions about generator installation? Call (888) 633-7804 for a flat-rate quote anywhere in Delaware.

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Generator Installation in Delaware

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