# Derock Electric

Canonical page: https://bestelectricianspennsylvania.com/pa/electricians/derock-electric/

Derock Electric has one Google listing, with 18 reviews and a rating of 4.3. Ratings from Google, checked 10 November 2026.

Carlisle, Cumberland County

**4.3** from 18 Google reviews

- Registered 2008

[Visit website](http://derockelectric.com/)

**73.7** out of 100 formula v1.5

Score: 73.7 out of 100 (formula v1.5, data of 13 November 2026). Place 332 of 672 in the full directory ranking of Pennsylvania. Not in the family-run ranking: no family-run statement found and ownership: independent.

## Key facts

- **Based in:** Carlisle, Cumberland County (ZIP 17015)
- **Phone:** (717) 258-4346 (from its Google listing)
- **Website:** [http://derockelectric.com/](http://derockelectric.com/)
- **Google rating:** 4.3 average from 18 reviews. Ratings from Google, checked 10 November 2026. [Main listing](https://maps.google.com/?cid=1050808228249758143&g_mp=Cidnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLlNlYXJjaFRleHQQAhgEIAA).
- **Ownership:** Independent, confirmed by an independent source. Sources: [company website](https://derockelectric.com/about-us/), [company website](http://derockelectric.com/), [business directory](https://www.bbb.org/us/pa/boiling-sprgs/profile/electrician/derock-electric-company-llc-0241-182525867), [state record](https://data.pa.gov/d/xvd7-5r2c). Researched 11 November 2026.
- **Family-run:** Not found: no family-run statement was found.
- **Founded:** 2008, according to the company ([page](https://derockelectric.com/)).
- **State registration:** DeRock Electric Company, Domestic Limited Liability Company, registered 23 January 2008, filing 0003783701 ([Pennsylvania Department of State](https://data.pa.gov/d/xvd7-5r2c), checked 11 November 2026).
- **Officer on record:** Douglas A. Detwiler, Governor and President (the register's term for a director or manager) ([Pennsylvania Department of State register](https://data.pa.gov/d/xvd7-5r2c), checked 11 November 2026).
- **Officer on record:** Rodney J. Forry, Vice president ([Pennsylvania Department of State register](https://data.pa.gov/d/xvd7-5r2c), checked 11 November 2026).
- **Named by the company:** Doug Detwiler, co-founder and president ([company website](https://derockelectric.com/about-us/), checked 11 November 2026).

## Why it ranks here

Derock Electric scores 73.7 out of 100, and most of its points come from the Google rating (29.0 of 44.4 possible) and claim accuracy (22.2 of 22.2 possible). It loses the most on the Google rating, 15.4 of 44.4 points, with a Google rating of 4.3 from 18 reviews, which counts as 4.48 once adjusted for the number of reviews, against 5.0 for full credit. It earns no bonus points: we did not find published prices, 24/7 service shown in its Google hours or a written workmanship warranty with a stated term on its website.

**Score breakdown, formula v1.5 ([method](https://bestelectricianspennsylvania.com/methodology/))**

| Part | Weight | Value | Points | Possible |
|---|---:|---:|---:|---:|
| Google rating, adjusted for review count | 40% | 0.653 | 29.0 | 44.4 |
| Number of Google reviews | 15% | 0.346 | 5.8 | 16.7 |
| Accuracy of the company's own claims | 20% | 1.000 | 22.2 | 22.2 |
| Years in business | 10% | 1.000 | 11.1 | 11.1 |
| State registration check | 10% | not used yet |  |  |
| Transparency (website, phone, address, hours) | 5% | 1.000 | 5.6 | 5.6 |
| Weighted score |  |  | 73.7 | 100.0 |
| **Final score** |  |  | **73.7** | 100.0 |

## How it compares in Pennsylvania

**Derock Electric compared with the median of the ranked companies, data of 13 November 2026. Ratings from Google. Years in business count only an exact founding year, so their medians cover the 176 ranked companies statewide that have one (13 in Cumberland County).**

| Measure | Derock Electric | Median of the 672 ranked in Pennsylvania | Median of the 28 ranked in Cumberland County |
|---|---:|---:|---:|
| Score | 73.7 | 73.5 | 76.0 |
| Google rating | 4.3 | 4.9 | 4.9 |
| Google reviews | 18 | 33 | 28 |
| Years in business | 18 | 26 | 18 |

- Place 332 of 672 in the full directory ranking of Pennsylvania, ahead of 50.5% of the 672 ranked companies.
- Average place across 1 county where it has a Google listing: 18.0; across 1 more it says it serves: 21.0.
- Average place across 1 town where it has a Google listing: 9.0; across 3 more it says it serves: 12.7.

## Where it ranks

- [Cumberland County](https://bestelectricianspennsylvania.com/pa/county/cumberland/): 18th in the directory ranking; Google listing there.
- [Dauphin County](https://bestelectricianspennsylvania.com/pa/county/dauphin/): 21st in the directory ranking; says it serves it ([source](https://derockelectric.com/)).
- [Franklin County](https://bestelectricianspennsylvania.com/pa/county/franklin/): 6th in the directory ranking; based 23 miles away.
- [York County](https://bestelectricianspennsylvania.com/pa/county/york/): 32nd in the directory ranking; based 8 miles away.
- [Dillsburg](https://bestelectricianspennsylvania.com/pa/town/dillsburg/): 17th in the directory ranking; based 8 miles away.
- [Harrisburg](https://bestelectricianspennsylvania.com/pa/town/harrisburg/): 16th in the directory ranking; says it serves it ([source](https://derockelectric.com/)).
- [Mechanicsburg](https://bestelectricianspennsylvania.com/pa/town/mechanicsburg/): 14th in the directory ranking; based 8 miles away.

## Other electricians in Cumberland County

**The ranked companies of Cumberland County placed nearest to Derock Electric in the county's full directory ranking. Data of 13 November 2026. [All of Cumberland County](https://bestelectricianspennsylvania.com/pa/county/cumberland/).**

| Place in county | Company | Score |
|---:|---|---:|
| 15 | [Craftsman Electrical Services](https://bestelectricianspennsylvania.com/pa/electricians/craftsman-electrical-services/) Harrisburg, Dauphin County | **75.4** |
| 16 | [Bitner Electric](https://bestelectricianspennsylvania.com/pa/electricians/bitner-electric/) Harrisburg, Dauphin County | **75.0** |
| 17 | [The Circuit Pros LLC](https://bestelectricianspennsylvania.com/pa/electricians/the-circuit-pros/) Mechanicsburg, Cumberland County | **74.0** |
| 19 | [Hurley Electrical LLC](https://bestelectricianspennsylvania.com/pa/electricians/hurley-electrical/) Harrisburg, Dauphin County | **73.6** |
| 20 | [Central Penn Electric LLC](https://bestelectricianspennsylvania.com/pa/electricians/central-penn-electric/) Mechanicsburg, Cumberland County | **72.2** |
| 21 | [Connex Electric](https://bestelectricianspennsylvania.com/pa/electricians/connex-electric/) Shippensburg, Cumberland County | **70.3** |

## Google listings

**Google listings of Derock Electric. Ratings from Google, read on the dates shown**

| Listing | Town | County | Rating | Reviews | Read on |
|---|---|---|---:|---:|---|
| [Derock Electric](https://maps.google.com/?cid=1050808228249758143&g_mp=Cidnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLlNlYXJjaFRleHQQAhgEIAA) | Carlisle | Cumberland | 4.3 | 18 | 2026-11-10 |

## Claims checked

Each statement found on the company's website was compared with records we did not get from the company. The results use three terms only: supported, no independent record, and inconsistent with records.

**Claims on the company's website compared with independent records**

| Claim | Result | What we found | Sources | Score effect | Checked |
|---|---|---|---|---|---|
| Founding year | **supported** | DeRock Electric Company was registered with the Pennsylvania Department of State on 23 January 2008, consistent with the stated founding year of 2008. | [claim](https://derockelectric.com/); [Pennsylvania Department of State formation date (2008-01-23)](https://data.pa.gov/d/xvd7-5r2c); [domain registration (2009-02-23)](https://rdap.verisign.com/com/v1/domain/derockelectric.com) | none | 2026-11-10 |
| Review total | **supported** | The site claims 18 Google reviews; the 1 Google listing we found has 18 in total (ratio 1.0). | [claim](https://derockelectric.com/); [Google listings (1) (2026-11-10)](https://maps.google.com/?cid=1050808228249758143) | none | 2026-11-10 |
| Number of locations | **supported** | The site publishes 1 location; we found 1 Google listing for the company (ratio 1.0). | [claim](https://derockelectric.com/); [Google listings (1) (2026-11-10)](https://maps.google.com/?cid=1050808228249758143) | none | 2026-11-10 |

## Services and what the company says about itself

- **Work named on its website:** Commercial work, [generators](https://bestelectricianspennsylvania.com/pa/services/generators/), [lighting](https://bestelectricianspennsylvania.com/pa/services/lighting/) and residential work ([website](http://derockelectric.com/), read 10 November 2026).

## Questions

### Is Derock Electric family-run?

We found no family-run statement on its website (read 10 November 2026), so it is not in the family-run ranking.

Source: [company website](http://derockelectric.com/).

### How many Google reviews does Derock Electric have?

Derock Electric has 18 Google reviews, with an average rating of 4.3, read 10 November 2026.

Source: [Google listing](https://maps.google.com/?cid=1050808228249758143&g_mp=Cidnb29nbGUubWFwcy5wbGFjZXMudjEuUGxhY2VzLlNlYXJjaFRleHQQAhgEIAA).

### Which counties does Derock Electric serve?

It has Google listings in Cumberland County. Its website also names Dauphin County as a place it serves; we have not checked this.

Source: [company website](https://derockelectric.com/).

### How is the score calculated?

Its score of 73.7 comes from one formula used for every company (v1.5): the Google rating adjusted for review count, the number of reviews, claim accuracy, years in business and transparency, then ownership and bonus points. The method page gives every rule.

Source: [method page](https://bestelectricianspennsylvania.com/methodology/).

Something wrong or out of date? Write to [support@bestelectricianspennsylvania.com](mailto:support@bestelectricianspennsylvania.com) with the address of this page. Corrections are free; see [how corrections work](https://bestelectricianspennsylvania.com/corrections/).

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