Verified record
KST Electric Inc. is a Boston, Massachusetts electrical contractor based at 35 Milton Ave, holding an active Massachusetts electrician license (#10237) verified by BuildZoom, whose permit records show 183 completed electrical permits pulled under the company's name. Reviewers know the person behind the work as Teddy or Ted. On the three review platforms carrying customer feedback -- Thumbtack, Angi, and HomeAdvisor -- KST Electric has a perfect 5.0-star rating across all 3 published reviews, dated December 2023 through January 2024. A commercial customer described Teddy and his team's work across office locations in Arlington, Lynn, and Cambridge as clean and code-compliant, adding that the pricing was competitive for the quality delivered. A homeowner who hired KST to connect a backup battery to a heating system called Ted easy to communicate with and the fix fast and cost-effective; another called the crew friendly, on time, and courteous. Before booking, it's worth asking directly about free estimates and emergency availability: Angi and HomeAdvisor's listings both state KST Electric does not offer free estimates or emergency service, while Thumbtack and BuildZoom's listings for the same business advertise both -- the two sets of self-reported claims disagree with each other. KST Electric looks like a solid pick for residential and small commercial electrical work -- wiring, outlets, lighting, and panel work -- backed by a verified active license and an unblemished, if still small, review record. Given how few reviews are on file, it's worth asking for a couple of recent references alongside confirming which of the conflicting service terms actually apply.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from KST Electric. 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
$530 – $1,100
Typical electrical project around $820
Teddy and his team were wonderful! They did some commercial work at several of our offices in Arlington, Lynn, and Cambridge. Everything was nice. The work was clean. We've worked with other companies, and you can definitely tell KST takes pride in their work. The pricing was competitive, but after you see his work, you'll think it was a bargain. Not only that, but the peace of mind that your buildings won't go up in flames and are up to code is paramount. Thank you again!
friendly / on time /courteous explained every to be done would recommed them very satisfied with job bill
KST Electric - Keep Smiling Together :) , it is - really !! Very fast , professional , simple and cost effective solution to my request of connecting an external battery (back up power) to a heating system. Ted was easy to communicate with and returned messages super fast ..
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2 changes recorded — last scanned Sep 11, 2026.
Fast response5.0