Castro Electric Corp
Local business · 8 Gilmore St, Stoneham, MA 02180, USA
Their work
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Verified record
- A- BBB rating
- 45 reviews in the last 6 monthsNo negatives
- 20 customer photosOf completed work
Highlights
- Fast emergency response — restored power same day after a fallen tree knocked it out
- Storm damage fixes — sourced and installed the exact master breaker after flooding
- EV charger installs — praised for a fast, competitively priced Tesla charger job
- Repeat trade referrals — a GC project manager says he uses them often
- Deep, consistent history — 226 five-star Google ratings, zero negative in 6 months
Castro Electric Corp runs out of 8 Gilmore St in Stoneham, and the story that repeats most across its reviews is speed under pressure — a fallen tree that took out the weatherhead and the power with it, a circuit breaker soaked through by snowmelt in an old house, a Friday-night call to keep a restaurant's cooling system running after hours. Rene Castro owns the company, and he shows up on the tools himself: reviewers describe him doing the initial site visit, then bringing in a small, consistent crew — Chris, Cole, Max, Mike — rather than rotating subcontractors. The volume behind that history is real. Google alone shows 226 ratings at a full 5 stars, and the wider count across eight sources runs to 229 reviews stretching back to 2023, with 46 of those landing in just the last six months and not one negative among them. In that recent stretch, the work described ranges from a Tesla Wall Charger install timed for a new 2026 Model Y and a swap of some aging breakers, to a bell-box and GFCI replacement paired with a ring doorbell camera, to wiring a home for a hot tub and returning later to finish the exterior hookup. One reviewer, who recommends the company to their own real estate clients, had Rene evaluate a condo's wiring on short notice so a buyer could decide whether to move forward with a purchase. There isn't a documented complaint anywhere in this history to weigh against that — the BBB lists the company at an A-, and the run of five-star reviews holds steady month over month rather than clustering around one good season. What's worth knowing going in is less a warning than a fact about scale: this reads like an owner-operator shop with a handful of named electricians, not a large firm, so how fast they can get to a same-day emergency likely depends on who's free that day. For a homeowner facing an electrical emergency — a dead panel, a fried breaker, a fallen line — or a smaller install like an EV charger or a hot tub circuit, Castro Electric's history says they'll show up fast and finish clean. Worth confirming directly: current lead time for non-emergency work, since the reviews describing prompt scheduling are mostly for jobs booked a few days out, not necessarily next-day walk-ins.
Read the comments
Most recent comments
- 5.0Jul 3, 2026
Good people who do good work. Castro electric staff all around are willing to take the time to understand your needs, problem solve around road blocks, and do it with kindness and a positive attitude the whole time. These are priceless qualities. They do clean, thorough work on top of that. I could recommend them highly enough.
— Ravneet GrewalView on Google Reviews ↗ - 5.0Jun 19, 2026
Wonderful service! Rene and his team are top notch!
— Lori MabardiView on Google Reviews ↗ - 5.0Jun 16, 2026
Rene and his crew really came through for us like a champ! It was After Hours on a Friday night and his team kept a restaurant open and operating on temp cooling. I would recommend him to anyone. There’s a lot to be said about owner operator companies in the accountability that is there. That’s very important. In a partnership for us here @KelsoBuildingservices. MEP+ Erik
— erik pavlinchView on Google Reviews ↗ - 5.0Jun 9, 2026
Great customer service, timely scheduling and efficient service. Will use them again.
— Will CampoView on Google Reviews ↗ - 5.0Jun 5, 2026
Very knowledgeable staff. Transparent quote. Great work.
— Faisal BashirView on Google Reviews ↗
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Update history
Added 229 new comments, added 60 new photos, established rating 4.5
- behind the score: Fast emergency response — restored power same day after a fallen tree knocked it out