---
title: "Onsite Electric LLC"
description: "On its Better Business Bureau page, OnSite Electric LLC describes itself as providing electrical services to industrial and commercial customers. Its websi"
doc_version: "2026-10-19"
last_updated: "2026-10-19"
---

# Onsite Electric LLC

**Trade:** Electrical · **Address:** 15 Hemingway Dr, Wallingford, CT 06492 · **Phone:** (203) 265-0594 · **Website:** http://www.onsite-electric.net/ · **Languages:** English

**Rating: 3.5/5** (low confidence) — from 1 reviews across 6 sources.

## The honest read

On its Better Business Bureau page, OnSite Electric LLC describes itself as providing electrical services to industrial and commercial customers. Its website says it has been in business for 32 years and offers 24/7 emergency service.

The company holds an A+ grade from the Better Business Bureau and a 5-star Google rating from 2 ratings.

Its Connecticut electrical licence, ELC.0121864-E1, is active, held by John J Diana.

## Claims & citations

Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication.

- Describes itself on the BBB as providing electrical services to industrial and commercial customers _(confidence: medium)_
  - [Better Business Bureau](https://www.bbb.org/us/ct/wallingford/profile/commercial-electrician/onsite-electric-llc-0111-87126807) — “About (Better Business Bureau, self-described): OnSite Electric LLC provides electrical services to Industrial and commercial customers.”
- Its website reports 32 years in business _(confidence: low)_
  - [Official Website](http://www.onsite-electric.net) — “Self-reported 32 years in business”
- Better Business Bureau grade of A+ _(confidence: high)_
  - [Better Business Bureau](https://www.bbb.org/us/ct/wallingford/profile/commercial-electrician/onsite-electric-llc-0111-87126807) — “Better Business Bureau grade: A+”
- 5 stars on Google from 2 ratings _(confidence: high)_
  - [Google](https://www.google.com/maps/search/?api=1&query=Onsite%20Electric%20LLC&query_place_id=ChIJuydPWhnL54kRS7IKkCqr1BA) — “Google: 5★ from 2 ratings”
- Its Connecticut electrical licence, ELC.0121864-E1, is active, held by John J Diana. _(confidence: high)_
  - [State License Registry](https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx) — “CT electrician license ELC.0121864-E1 registry-verified active — registry holder of record: JOHN J DIANA”
- Specializes in Electrical _(confidence: medium)_
  - [Better Business Bureau](https://www.bbb.org/us/ct/wallingford/profile/commercial-electrician/onsite-electric-llc-0111-87126807) — “About (Better Business Bureau, self-described): OnSite Electric LLC provides electrical services to Industrial and commercial customers.”

## License

Status: **active** (#ELC.0121864-E1, electrician) — verified against the official CT state registry on 2026-10-19, never self-reported.
Re-check at the official registry: https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx

## Sources

- [Google](https://www.google.com/maps/search/?api=1&query=Onsite%20Electric%20LLC&query_place_id=ChIJuydPWhnL54kRS7IKkCqr1BA): 5.0★ from 2 ratings
- [Reddit](https://www.reddit.com/r/mountainview/comments/1mf8ys1/seeking_apartments_where_residents_want_to_charge/): 0 community mentions discussing this business
- [Google Reviews](https://www.google.com/maps/search/?api=1&query=Onsite%20Electric%20LLC&query_place_id=ChIJuydPWhnL54kRS7IKkCqr1BA): Listed on this source
- [Official Website](http://www.onsite-electric.net): 32 yrs in business · Self-reported profile and service details
- [Better Business Bureau](https://www.bbb.org/us/ct/wallingford/profile/commercial-electrician/onsite-electric-llc-0111-87126807): Listed on this source
- [Local News](https://www.wastetodaymagazine.com/news/massachusetts-landfill-proposed-expansion-new-bedford-dartmouth-2025/): Listed on this source

## Recent reviews

- **5/5 · Google Reviews · Isai Musou · 2025-07-10**: Love the customer Serve here its 100% gurateended

---

Data freshness: last scanned 2026-10-13T12:15:01.353Z.
Cite as: Onsite Electric LLC — Tavlee (https://tavlee.com/contractor/onsite-electric-llc-wallingford)
Source: https://tavlee.com/contractor/onsite-electric-llc-wallingford

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