# K.G. Johnson, Inc

K.G. Johnson, Inc is a backflow tester with an address in Fredrick, MD, United States.

K.G. Johnson, Inc appears on the DC Water register (Registered Backflow Prevention Assembly Service Provider), with an address in Fredrick, MD. Services named in the source: backflow prevention assembly commercial inspector.

## Details

- Address: Fredrick, MD, 21703, United States
- Phone: [13016989805](<tel:13016989805>)
- Website: [www.kgjohnson.com](<https://www.kgjohnson.com>)
- Source of the listing data: DC Water — Registered BPA Service Providers, https://www.dcwater.com/sites/default/files/engineering/bpa-service-providers.xlsx, fetched 2026-11-10. Website, map pin from Overture Maps Places (CDLA-Permissive-2.0, release 2026-10-21.0).

## Questions

### Where is K.G. Johnson, Inc?

K.G. Johnson, Inc is at Fredrick, MD, 21703, United States.

### How do I contact K.G. Johnson, Inc?

To contact K.G. Johnson, Inc, call 13016989805 or visit https://www.kgjohnson.com.

## Source

From [Backflow tester registers and portals](https://www.dcwater.com/sites/default/files/engineering/bpa-service-providers.xlsx), license Registers and portals: no specific reuse licence identified. See per-register terms in notes., checked 2026-11-11.

Last updated November 11, 2026.

## Links

- This backflow tester on the [web page](<https://backflowtesters.fyi/us/md/fredrick/k-g-johnson-inc>)
- [Backflow testing in Fredrick](<https://backflowtesters.fyi/us/md/fredrick/category/backflow-testing.md>)
- [More backflow testers in Fredrick](<https://backflowtesters.fyi/us/md/fredrick.md>)