What a standby generator costs in Nassau & Suffolk
Two companies in this guide publish installed prices on their own websites — Long Island Electric Co. and Marra Electric. Every other installer prices your job after a site visit. So the figures below are those two companies' own published prices, used as local context — not a quote from any other company in this guide.
Published installed prices
- Long Island Electric Co. (Hempstead; own website): 22 kW system $11,000–$16,500 installed.
- Marra Electric (Bohemia; own website, 14–22 kW systems, permits and inspections included): Babylon $8,000–$11,000; Laurel $9,000–$16,000; Eastport $13,000–$18,000.
Reference range
Taken together, those published prices put a typical installed standby system in Nassau and Suffolk roughly in the $8,000–$18,000 range. Treat that as context, not a quote: your home's size, fuel supply and electrical setup move the number.
What drives your specific quote
- System size in kW — how much of the house you want to keep running
- Fuel: natural gas or LP, and the gas line work needed
- Transfer switch type — automatic or manual
- Electrical panel work or upgrades
- Permits and inspections — Marra Electric includes them in its published prices
- Distance and trenching between the unit, the meter and the panel
- Concrete pad, placement and clearance requirements
What no figure covers
No published price for a portable generator or for an annual maintenance plan was found on the own websites of the companies in this guide. Ask each installer what maintenance costs and what it includes, and get the installed price in writing with the scope itemized — kW, brand, transfer switch, permits, gas line and warranty.