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Diamond Electrical Services is an electrical contractor whose website lists a service area of East Windsor, South Windsor, Ellington, Enfield, Tolland, Broad Brook, Somers, Vernon, Manchester, Windsor Locks and Stafford. The company says it has been in business 20 years. A 2026 customer said they hired the electrician to put a 13,000 watt portable generator together and test it for backup power for the home. A 2025 customer said Greg worked with them on different options for a heat pump install, aiming for a clean solution that worked for the other contractors involved. A 2025 customer said Greg communicated promptly and charged fair prices. A 2025 customer who runs a business wrote that Greg did several projects for it and explained what he was doing and why at each step. A recent customer called the work timely, responsive and efficient.
Timely responsive and efficient
I hired this person to put my 13,000 watt portable generator together and test for backup power for home. He did excellent work and will recommend him to everyone I know.
Greg was just an awesome professional electrican. Very knowledgeable! Prompt with communication. Fair prices. Great quality work! Will use him with my next electrical needs for sure.
Diamond Electrical Services is a top tier recommendation and I wouldn't dream of recommending anyone else. Greg is incredibly knowledgable, highly skilled and totally trustworthy. With each of the several projects he has worked on for my business, he absolutely went above and beyond to make sure the work was done to satisfaction, it was done efficiently and was priced fairly. He always communicated clearly about what he was doing, why he was doing it the way he was and made sure we were comfortable with each step of the process. Diamond Electrical Services truly are a professional, reputable and outstanding company who focus on what matters to their clients and deliver 100% of the time. Highly recommend!
Greg is an excellent electrician. The quality of work was great and he was very responsive. He worked with me on different options for my heat pump install for a clean solution that worked for me and the other contractors involved. I'd highly recommend Diamond Electrical.
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1 change recorded — last scanned Oct 30, 2026.
Typical Connecticut range for this kind of work, from regional averages — not a quote from Diamond Electrical Services, LLC. 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
$490 – $1,050
Typical electrical project around $770
Sub panel, generator plug and RV plug in one day5.0
Small electrical jobs4.8
Pair of backup batteries set up on a house4.7
Cloth-covered wiring removed from a 1942 home4.7
Repeat customer3.5
