Hiring a generator prowhat to ask and when to book
A standby generator install involves an electrician for the transfer switch, a gas or propane line, a concrete or composite pad, and a permit and inspection. Some installers handle all of it; others subcontract the fuel line.
Ask which brands the company is a certified dealer for, since warranty service has to go through a dealer.
Lead times on units run from weeks to months depending on the season, and demand spikes after a regional outage, so ordering before a storm season is easier than after one.
Questions worth asking
Every generator listing on this directory shows the owner's answer to one trade question when they have given it: Which generator brands do you install? Along with free estimates and after-hours availability, that answer is labeled "owner reported" with the date we asked.
Generator Installation by city
| City | Based there | Nearby that cover it |
|---|---|---|
| Lancaster, PA | 5 | 10 |
| Denver, PA | 4 | 10 |
| Ephrata, PA | 3 | 10 |
| Manheim, PA | 3 | 10 |
27 generator installers listed in total as of Oct 2026, including towns too small for a page of their own.