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Generators are the whole business here. Kokernak Generator Sales and Service says it is a family owned and operated company established in 2007 that helps customers find standby automatic or portable generator setups. Tony J. Kokernak holds Maine electrician license MS40088638, active on the state registry. A recent customer said the genset was up and running in no time. One wrote that they came out within days of the phone call for a service and even showed up early. A recent customer said Cameron was the tech and answered a couple of their questions, and another thanked the company for keeping their generator and heat pumps working properly. A recent customer wrote that Cam even cleaned out mouse traps. A 2026 customer said Kokernak installed their 20kw Kohler generator. In a 2023 review, a customer said Tony answered all their questions on the phone, that his son Cameron and assistant Phil were courteous, and that rates were reasonable. A 2022 customer said their generator would not start after a service, which they later learned was due to the temperature, and that Cameron came out right away to make sure they were set for a coming storm. A 2022 customer gave one star over a generator install. That customer said they paid a deposit in April 2021, that the wiring went in that summer while the generator was awaited from Kohler, and that in November he said he would no longer do the job and would return the deposit. The same customer wrote that a December letter asking for the deposit or the install had drawn no reply, and that the Maine Attorney General's Office had been contacted.
Cam is a pro, polite even cleaned out mouse traps!!!
I've been working with Kokernak Generators of Gardiner for years now. They over great reliable service, and are always there when I need them.
Great customer service, reliable and quick to respond. Thank you for ensuring our Generator and Heat Pumps are working properly and efficiently.
Absolutely the best !
Got the genset up and running in no time, great job, thanks.
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Certified attributes are verified against the public registry. Others are the business's own statement.
2 changes recorded — last scanned Oct 30, 2026.
Typical Maine range for this kind of work, from regional averages — not a quote from Kokernak Generator Sales & Services LLC.. Use it to sanity-check bids, then get the real number in writing.
Standard receptacle swaps — a new dedicated circuit is a bigger job ($350–$750).
Flush mounts, pendants, chandeliers — hung on existing boxes.
Estimated range
$500 – $1,050
Typical electrical project around $780
Generator hookup set up for a 2025 customer3.4
State-verified electrician license2.9
Four-apartment building rewiring3.9
Nor'easter damage repaired the same day3.9