# Interstate Electrical Services Corporation

**Trade:** Electrical · **Address:** 70 Industrial Park Rd, Plymouth, MA 02360, USA · **Phone:** (800) 371-0474 · **Website:** http://iesc1.com/ · **Languages:** English

**Rating: 3.0/5** (low confidence) — from 5 reviews across 4 sources.
40% of sentiment-scored reviews read net-positive. Last 6 months: 0 reviews, 0 negative.

## The honest read

Interstate Electrical Services Corporation is a large commercial outfit — corporate, institutional, educational, life sciences and healthcare clients, not the usual homeowner call — that says it has operated since 1966 and runs eight regional offices across New England, including this Plymouth location. Design-build, prefabrication, and 24/7 emergency service are the pitch on its own site.

The handful of written accounts on file are dated (2021–2022) and mixed. In a 2022 review, a customer of four years described being turned away for lacking a service contract with no advance notice and no apology. Another 2022 review reported a company van driving erratically near the reviewer's car on the highway. A third simply called them 'the best people in the business,' with no detail behind it.

Two of the five write-ups on file (2021, 2022) read like employee accounts of the workplace — office atmosphere, a mentioned ice cream party — rather than customers describing contracted work, and are worth weighing differently than a homeowner's account of a job.

Before calling, it's worth asking directly about service-contract terms given the 2022 account above, and confirming which of the company's regional offices is handling the job.

**Strengths:**
- Client praise — called 'best people in the business'

**Concerns:**
- Contract policy — longtime customer denied service without notice
- Company van — reported erratic, unsafe driving

## Claims & citations

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

- A longtime customer says they were denied continued generator service without notice, in a 2022 review _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURtaWRXR3JnRRAB!2m1!1s0x0:0x3c107a0f6b7e833!3m1!1s2@1:CIHM0ogKEICAgIDmidWGrgE%7C%7C?hl=en) — “1★ Glynn has serviced my generator for 4 years. Most recently July. I called last week and they said they could not help me because I did no…”
- A company van was reported driving erratically and nearly causing a highway collision, in a 2022 review _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURtcHMyeEVnEAE!2m1!1s0x0:0x3c107a0f6b7e833!3m1!1s2@1:CIHM0ogKEICAgIDmps2xEg%7C%7C?hl=en) — “1★ Probably decent electricians, but they might hit someone on the way to your house. One of their vans almost hit my car on the highway and…”
- One reviewer called them 'the best people in the business' _(confidence: low)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNPNXJxTE9BEAE!2m1!1s0x0:0x3c107a0f6b7e833!3m1!1s2@1:CIHM0ogKEICAgICO5rqLOA%7C%7C?hl=en) — “5★ Best people in the business”
- Google rating of 4.2 stars from 26 ratings _(confidence: high)_
  - [Google](https://maps.google.com/?cid=270505840534349875&g_mp=CiVnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLkdldFBsYWNlEAIYBCAA) — “Google: 4.2★ from 26 ratings”
- Says it has operated since 1966 and is the largest privately held electrical services company in New England (self-reported) _(confidence: medium)_
  - [Official Website](http://iesc1.com) — “Company history (self-reported): States it has been 'delivering innovation and excellence since 1966' and is the largest privately held elec…”
- Serves corporate, institutional, educational, life sciences and healthcare clients from eight regional offices, offering 24/7 emergency service, design-build and prefabrication _(confidence: high)_
  - [Official Website](http://iesc1.com) — “Interstate Electrical Services Corporation is a commercial electrical construction and services contractor serving corporate, institutional,…”
- States UL-listed prefabrication as a certification/affiliation _(confidence: medium)_
  - [Official Website](http://iesc1.com) — “Stated certification/affiliation: UL listed prefabrication”
- Two of the five reviews on file read as employee accounts of the workplace, not customers describing contracted work, which likely weighs the pool more negatively than actual customer experience warrants _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNtOTkzTFBBEAE!2m1!1s0x0:0x3c107a0f6b7e833!3m1!1s2@1:CIHM0ogKEICAgICm993LPA%7C%7C?hl=en) — “1★ Terrible atmosphere everyone in the office quick to throw you under the bus. No room for growth, but plenty of room for failure. Always a…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURxbDRMSmJ3EAE!2m1!1s0x0:0x3c107a0f6b7e833!3m1!1s2@1:CIHM0ogKEICAgIDql4LJbw%7C%7C?hl=en) — “5★ Ice cream party”
- Specializes in Electrical _(confidence: high)_
  - [Official Website](http://iesc1.com) — “Interstate Electrical Services Corporation is a commercial electrical construction and services contractor serving corporate, institutional,…”

## License

Status: **not_found** — verified against the official MA state registry, never self-reported.
Re-check at the official registry: https://elicensing21.mass.gov/CitizenAccess/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=Home

## Sources

- [Google](https://www.google.com/maps/search/?api=1&query=Interstate%20Electrical%20Services%20Corporation&query_place_id=ChIJtaL18IG75IkRM-i39qAHwQM): 4.2★ from 26 ratings
- [Google Reviews](https://www.google.com/maps/search/?api=1&query=Interstate%20Electrical%20Services%20Corporation&query_place_id=ChIJtaL18IG75IkRM-i39qAHwQM): Listed on this source
- [Official Website](http://iesc1.com): 60 yrs in business · Self-reported profile and service details
- [Exa](https://localitybiz.com/35112523/interstate-electrical-services-corporation-billerica): 7 web mentions across the open web (each linked to its source)

## Recent reviews

- **5/5 · Google Reviews · Brian Lovell · 2022-06-08**: Best people in the business
- **1/5 · Google Reviews · Fran Rooney · 2022-02-01**: Glynn has serviced my generator for 4 years. Most recently July. I called last week and they said they could not help me because I did not have a contract. News to me. No notice!! I said how do I start contract process and the gentleman said you can't glynn is not taking new customers. What? Client …
- **1/5 · Google Reviews · P · 2022-01-26**: Probably decent electricians, but they might hit someone on the way to your house. One of their vans almost hit my car on the highway and was driving erratically. If you’re going to drive like that at least don’t drive in your company van.
- **1/5 · Google Reviews · Kevin McKenna · 2022-01-13**: Terrible atmosphere everyone in the office quick to throw you under the bus. No room for growth, but plenty of room for failure. Always anticipate the stock to be incorrect and most importantly smile 😃
- **5/5 · Google Reviews · Johnnie Morris · 2021-07-17**: Ice cream party

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Data freshness: last scanned 2026-07-05T11:11:25.362Z.
Cite as: Interstate Electrical Services Corporation — Tavlee (https://tavlee.com/contractor/interstate-electrical-services-corporation-plymouth)
Source: https://tavlee.com/contractor/interstate-electrical-services-corporation-plymouth