I saw that Jefferson Fire and Safety had only one review on Yelp so I'm adding mine. I've been having fire alarm testing done for over 15 years. For years I used a Stoughton business to do the testing at my Stoughton property. Unfortunately that provider went out of business (not for financial reasons). After several years of trying alternate businesses and being disappointed, I tried Jefferson Fire and Safety last year. JF&S charged about half as much as the prior alternate businesses and only slightly more than my longstanding provider charged. (I kinda hope JF&S doesn't read this, I don't want them to get any ideas about rates as I'll be using them again in the coming weeks.) In addition, Scott, the JF&S tech that did the testing, was more meticulous than the alternate businesses and gave me an in-depth assessment and opinion of many of the aspects of my alarm system, including self-testing and preventative maintenance suggestions. As I said, I'm going to use JF&S again.