Storm-Ready Backup Power
Generator Installation in Portland, ME
Whole-home and standby generator installation in Portland — automatic transfer switches, load management, and storm-ready backup power.
Generator Installation for Portland Homes & Businesses
Maine winters and coastal storms knock out power often, and a standby generator keeps your Portland home running when the grid goes down. Goodnow Electric installs whole-home and portable generator systems across Cumberland County with automatic transfer switches so your heat, water, refrigeration, and lights come back on within seconds of an outage.
Portland is Maine's largest city, and its housing stock runs from century-old peninsula triple-deckers on Munjoy Hill and the West End to new construction in Deering and along the waterfront. Goodnow Electric handles generator installation for Portland homeowners and businesses every week, and we know how the city's older wiring, tight lots, and permitting through the Inspections Division all factor into a clean, code-compliant job.
Homeowners in the West End, Munjoy Hill, and East Bayside and across Portland count on us to size the generator correctly, wire the transfer switch, and handle the permit and inspection. We make sure the system starts itself, carries the loads that matter, and is ready before the next storm.
Generator Installation Services in Portland
What you get when you hire Goodnow Electric for generator installation in Portland.
Whole-Home Standby Units
Permanently installed generators that start automatically and power your entire home.
Automatic Transfer Switch
Seamless switchover within seconds of an outage — no manual cords or switches.
Correct Load Sizing
We size the unit to your real loads so essentials never get starved during an outage.
Portable Generator Hookups
Interlock kits and inlets for a safe, code-compliant portable generator connection.
Permit & Inspection
We pull the electrical permit and coordinate the inspection on every install.
Storm-Season Ready
Tested and commissioned so the system is proven before you actually need it.
Our Portland Generator Installation Process
Power Audit & Quote
We review the circuits you want backed up and recommend the right generator size, then quote it in writing.
Permit & Placement
We pull the permit, plan the generator and transfer-switch location, and coordinate any fuel hookup.
Install & Commission
We install, wire the transfer switch, test under load, and walk you through the system.
Why Portland Chooses Goodnow Electric
- Owner on-site for every Portland job
- Licensed, bonded & insured
- Free written estimates
- Permits pulled & inspections handled
- Code-compliant work — always
- 24/7 emergency electrical service
Other services in Portland:
“After needing an emergency fix late on a cold winter's Sunday, Goodnow came to the rescue! With no power and dark approaching we called around and couldn't find any place that could help. When we gave Goodnow a call, Bret had one of his guys come over and help us out. David came over, checked things out, replaced some parts in our electrical box and we had light (and heat!!!) back again! So kind, helpful and a real life saver during emergencies!”
Amanda • Google Review
Generator Installation in Portland — FAQs
What size generator do I need for my Portland home?
It depends on what you want to keep running. Many Portland homes do well with a whole-home standby unit, while smaller setups can back up just the essentials. We size the system to your actual loads during the free estimate.
Does a standby generator turn on automatically in Portland?
Yes. With an automatic transfer switch, your standby generator detects the outage and restores power to your Portland home within seconds — no manual steps required.
Do you handle the permit for generator installs?
We do. Every generator installation in Portland includes the electrical permit and coordination of the final inspection as part of the job.
Generator Installation in Nearby Towns
Get a Free Generator Installation Quote in Portland
Tell us about your Portland project — we'll respond within 24 hours with a clear quote.