On Demand Electric
In New Berlin, Wisconsin, On Demand Electric installs standby generators, transfer switches and panel upgrades, and also does sump pump work and emergency tree work.
What they do
On Demand Electric installs standby generators for whole-home backup power, including Generac models, along with transfer switches and panel upgrades. Its other work covers sump pump installation, emergency tree work and ice dam removal. Generator installs are set up to keep sump pumps, refrigerators and heating running when the power is out, and permits are handled as part of the job. Online estimates are offered, and emergency service is available. Generac Guardian Series generators carry a five-year limited warranty when registered through the dealer. The business serves New Berlin, Waukesha, Brookfield and Milwaukee.
- Standby generators
- Generator installs
- Transfer switches
- Backup power
Listed under Backup power
Where they work
What we checked
Checked 12 Nov 2026, from public sources.
Not yet verified. We haven’t contacted this business yet. Ask for a written quote before work starts.
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