# Backflow testers in Washington, DC

Browse backflow testers with an address in Washington. Check availability and utility registration.

2 backflow testers. Also on the [web page](https://backflowtesters.fyi/us/dc/washington).

## Backflow testers

1. [Complete Building Services](https://backflowtesters.fyi/us/dc/washington/complete-building-services.md), Backflow testing, 4058 Minnesota Ave NE, Washington: Complete Building Services appears on the DC Water register (Registered Backflow Prevention Assembly Service Provider), with an address in Washington, DC.…
2. [W. L. Gary Company, Inc](https://backflowtesters.fyi/us/dc/washington/w-l-gary-company-inc.md), Backflow installation, 225 Vine St NW, Washington: W. L. Gary Company, Inc appears on the DC Water register (Registered Backflow Prevention Assembly Service Provider), with an address in Washington, DC.…

## Categories in Washington

- [Backflow installation](https://backflowtesters.fyi/us/dc/washington/category/backflow-installation.md): 1 backflow tester
- [Backflow testing](https://backflowtesters.fyi/us/dc/washington/category/backflow-testing.md): 1 backflow tester

## Questions

### How many backflow testers are in Washington?

Backflow Testers lists 2 backflow testers with an address in Washington, DC.