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Generators Cost Guide 2026

Updated

What to expect to pay, what drives costs up or down, and how to get an accurate estimate.

Typical cost

$5,000 – $18,000per system

Portable generator: $500–$2,000. Standby 12 kW: $5,000–$8,000 installed. Standby 22 kW: $8,000–$15,000 installed. Transfer switch adds $500–$1,500 if not included.

What affects cost

Portable generator: $500–$2,000. Standby 12 kW: $5,000–$8,000 installed. Standby 22 kW: $8,000–$15,000 installed. Transfer switch adds $500–$1,500 if not included.

Cost FAQ

  • What is the average cost of generators work?

    The average cost ranges from $5,000 to $18,000 per system. Portable generator: $500–$2,000. Standby 12 kW: $5,000–$8,000 installed. Standby 22 kW: $8,000–$15,000 installed. Transfer switch adds $500–$1,500 if not included.

  • Why do contractor estimates vary so much?

    Material quality, project complexity, local labor rates, and contractor overhead all affect pricing. A 30–50% variance between bids on the same project usually means different scopes — get line-item estimates and compare carefully.

  • How can I lower the cost without sacrificing quality?

    Schedule during off-peak times (spring and fall are busiest for most trades). Get 3+ competing bids. Avoid making scope changes after work starts. Supply your own materials if you can find better pricing (discuss with contractor first).

  • Does homeowner's insurance cover this work?

    Typically only if the damage is sudden and accidental (storm, fire, burst pipe). Routine maintenance, wear and tear, and improvements are not covered. Check your policy for specifics.

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