Black Diamond Energy

Black Diamond Energy is a two-person HVAC shop in Lynn built around one product: ductless mini-split heat pumps. Joe Watson founded the company and works as lead technician; Kevin King owns it alongside him. By the company's own account, the work runs from the first consultation through installation and the follow-up visit afterward. The line reviewers keep repeating is to ask for Joe by name. A review from this past March calls it the best HVAC company around and sends the next caller straight to him, and it isn't an outlier — all seven Google reviews collected since 2023 average 5.0, a rating echoed on local HVAC directory listings pulling from that same page. That average sits on a small base: seven reviews across three years, with only one from the last six months. None of it is negative, but there isn't much volume yet to weigh it against. For a mini-split consultation or install around Lynn, the reviews point toward asking for Joe specifically — worth lining up a recent reference or two before committing to a bigger job, given how few reviews there are to go on.