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Efficient Air, LLC replaces furnaces, installs boilers and heat pumps, and cleans furnaces. Its Google page shows 3.4 stars from 25 ratings, and the Better Business Bureau grades it A+. A recent Google customer said the company removed an old oil furnace and replaced it with a new propane heating system that functions perfectly. In 2023, a customer said the company had just installed a new boiler and was pleased with the job. A 2025 customer said they had their furnace cleaned, received a quote for some repairs within minutes and was scheduled right away. A 2025 reviewer said Chris explained in detail what was wrong and fixed it promptly. A 2025 customer said that after a furnace cleaning by the company, the furnace was left running poorly and emitting combustion gases, that a thermostat issue was passed off as a frozen pipe, and that the company hung up and said never to call again. A 2025 reviewer said the company replaced their oil tank and furnace in 2023, that the furnace stopped working a fifth time, and that a different heating company found the oil gauge had never been properly sealed by Efficient Air. A 2025 reviewer said the company charged to come and look at the furnace. A 2025 reviewer called the company's response to a one-star review extremely unprofessional.
Efficient Air did an excellent A+ job removing and replacing our old oil furnace with a brand new propane heating system that functions perfectly. Extremely hard working and definitely beyond knowledgeable in his profession, we are very pleased.
Do not hire this company!!! Completely incompetent and unprofessional. I'm absolutely appalled by the treatment I received when calling to discuss the problems that started after having our furnace cleaned by them. They left furnace left running poorly, emitting combustion gases and wasting fuel, and passed off what turned out to be a thermostat issue as a frozen pipe. Left me and my young son in a lurch on the coldest day of the year, hanging up on me and telling me never to call again. Completely unacceptable! I'm reporting to Community Concepts that referred this company for a cleaning, and I'm reporting to the better Business bureau. DO NOT HIRE THIS COMPANY
We had our furnace cleaned. Excellent service, professional, kind and understanding. Answered all of my questions and the price was more than reasonable. We received a quote within minutes for some repairs and was scheduled in right away. I highly recommend Efficient Air, LLC.
So grateful to have gotten a fast and affordable fix to my furnace emergency! Thank you so much!
Awesome company, Chris is very nice and polite. Explains in detail what is wrong and fixes it promptly.
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1 change recorded — last scanned Oct 30, 2026.
Typical Maine range for this kind of work, from regional averages — not a quote from Efficient Air, LLC. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$4,500 – $10,300
Typical HVAC project around $7,400
Seasonal home opening and closing4.7
Burst water tank fixed by noon4.5
Transparent pricing4.3
Sticky wiring problem two electricians gave up on3.2
54 years in businessNot yet rated
