Efficient Energy Systems Inc.

Had a simple furnace cleaning done not only was the cost double then the year before but a week later my furnace started tripping out and leaking fuel from the burner and venting fumes into my housei had zero issues before the cleaningi called to have them come back to re-check my system and they never showed up and never even gave me a call back I do not recommend them to anyoneterrible experience
Aug 31st, 2021

Wonderful service - reliable and economical!
Oct 4th, 2020

Bill and Scott were awesome, they showed up in an emergency at night in Methuen, Ma. We had no heat , he fixed the boiler and i highly recommend him. Prices were lower than all the other calls.
Jul 23rd, 2019

Does show up, doesn't return calls. Too busy, all the time. Ben waiting on a part install since the spring, it's now November. I think I'll find someone who has time for smaller repairs, who wants the business, or at least returns a call to say that he's too busy
May 9th, 2016