Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Commonwealth Electrical Technologies. 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
Commonwealth Electrical Technologies is a Worcester-based commercial electrical contractor, in business since 2008, doing electrical construction, solar installation and maintenance, energy-efficiency work, and EV charging installation. It carries a BBB A+ rating (though not accredited), and its listed master electrician, John P Duquette, holds an active Massachusetts electrician license. The written history here is thin and mixed. Two reviews are brief and positive, calling the service excellent without much detail. But a 2026 review raised a serious, specific issue: EV chargers the company installed were still not working because of an unresolved inspection problem, and the customer said they were hit with an undisclosed $2,000 additional engineering charge that never appeared in the original contract. There's not enough here to say how representative that complaint is, but it's a concrete, dated account worth asking about directly — particularly getting a full, itemized quote in writing before any EV charging or larger commercial job, given what happened in that case. For commercial electrical or EV charging work, the license is in order and the company has real tenure, but the thin and mixed written history means it's worth vetting the contract terms carefully before signing.
“in partnership with Commonwealth Electric Technologies (CET) and Leidos”
EV chargers installed by this company are still not operational due to an unresolved inspection issue. After installation was completed, we were presented with a $2,000 additional engineering charge that was never disclosed in the contract or prior to the work being done. Until this dispute is resolved, the chargers cannot be energized or used. The lack of upfront disclosure and the resulting delay has been frustrating, especially for a project intended to serve residents. Better transparency and project planning would have avoided this situation.
excellent service! would recommend
CET always puts their best foot forward when it comes to helping others. 10/10 would recommend working with them.
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Added 3 new comments, added 43 new photos, verified active license, established 2.6 rating
Tells homeowners which work they didn't need5.0
Neat workmanship4.9
Emergency response4.8
Older-home wiring4.3
SolarEdge Authorized service provider4.2