Generators and backup power · Generac Certified
Generators in Southern NH and the Merrimack Valley
Standby, portable, and battery backup power, sized to your home by a Generac Certified Installer.
What you get
Backup power that just works
A home generator keeps your house running when the power goes out, and the right one depends on how much you want to keep on. As a Generac Certified Installer, Lembo Electric installs whole house standby generators that start on their own, safe connections and enclosures for the portable generator you already own, the transfer switches behind both, and quiet EcoFlow battery backup, so a New England winter storm never leaves you in the dark.
A generator is only as good as how it is sized and wired. Undersize it and it struggles; oversize it and you overpaid. We walk your home, ask what has to stay on, whether that is the heat, the well pump, the fridge, or the whole house, and spec the unit and transfer switch to match. Then we commission it so you are not guessing when the first storm hits.
Sizing walk-through
We figure out what you need running during an outage and recommend a Generac unit sized to that load, not a generic guess.
Install and transfer switch
We set or prepare the pad as the job requires, make the electrical connection, install the automatic transfer switch, and pull the permit and handle the inspection. Your gas or propane supplier, or a licensed gas fitter, makes the fuel hookup, and we coordinate the timing with them.
Test and hand-off
We run the unit through a real transfer, confirm it starts and carries the load, and show you exactly how it behaves so there are no surprises later.
- Pay over time: finance up to $25,000 through Wisetack. See financing
- Need this for a business? See commercial electrical
In this service
Pick the work that fits your project
We handle every service below, and each one has its own page with straight answers.
Straight answers
Generators: common questions
Straight answers from a licensed master electrician. Flip any breaker to read it.
Get a Free EstimateWhat size standby generator do I need?
It depends on what you want running during an outage. Some homeowners cover essentials like heat, the well pump, and the refrigerator; others want the whole house. We size the unit to your real answer, which is why we ask before we quote.
Does a standby generator turn on automatically?
Yes. A standby unit with an automatic transfer switch senses the outage, starts on its own, and switches your home over within seconds, then shuts down when utility power returns. You do not have to be home for it to work.
Why hire a Generac Certified Installer?
A certified install means the unit is sized, set, and commissioned the way Generac intends, and it protects your warranty. Lembo Electric is a Generac Certified Installer, so the generator is backed correctly from day one.
Who connects the gas or propane line to the generator?
Your gas or propane supplier, or a licensed gas fitter or plumber, makes the fuel hookup. We handle the rest of the install: the pad as the job requires, the electrical connection, the automatic transfer switch, the electrical permit, and the inspection. We coordinate the timing with your fuel provider so the project comes together on schedule.
Get an honest quote for Generators
Tell us what is going on and we will lay out clear, honest options and what they cost.
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- Years of experience
- 180+
- Homeowner reviews in their own words
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- States licensed, New Hampshire and Massachusetts