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Standby generator installer quotes
A standby generator sits outside on a pad, runs on natural gas or propane, and starts by itself within seconds of an outage. Unlike a portable, it has to be installed by licensed trades, so the right installer matters as much as the right size.
What an installation involves
- Sizing visit. The installer looks at your panel, big loads (central air, well pump, electric range, heat pump) and gas supply. Use our size calculator first so you know your numbers.
- Transfer switch. An automatic transfer switch disconnects the house from the grid and connects the generator. It is what makes standby power safe for line workers.
- Permits and inspection. Most towns need electrical (and often gas and zoning) permits. A good installer pulls them.
- Placement. Manufacturers and local codes set minimum distances from windows, doors and vents because of carbon monoxide. See our CO safety guide.
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Get standby generator installer quotes
A standby generator needs a licensed electrician (and usually a gas fitter and a permit). Tell us about your home and we will try to match you with up to three local installers. Free, no obligation.
We only share your request with installers for this job and never sell your details to anyone else. Generator Watt Calc may be paid by installers for leads.
Frequently asked questions
What size standby generator does a house need?
It depends on what you want to run. Many homes that back up only essentials need far less than homes that want central air and an electric range on at the same time. Add up your loads with the size calculator, then have an installer confirm with a site visit.
Is a standby generator better than a portable one?
A standby generator starts automatically, runs on piped fuel and needs no extension cords, but costs much more and needs professional installation. A portable generator with a properly installed transfer switch or interlock is the budget alternative.
Do I need a permit for a standby generator?
Usually yes. Electrical work and gas connections almost always need permits and an inspection. Your installer should handle them.