# Backflow installation in Washington, DC

Find backflow installation in Washington. Confirm service area before booking.

1 backflow tester. Also on the [web page](https://backflowtesters.fyi/us/dc/washington/category/backflow-installation).

## Backflow testers

1. [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.…

## Other categories in Washington

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

## Backflow installation in other cities

- [Peterborough](https://backflowtesters.fyi/ca/on/peterborough/category/backflow-installation.md): 2 backflow testers
- [Beltsville](https://backflowtesters.fyi/us/md/beltsville/category/backflow-installation.md): 1 backflow tester
- [Bladensburg](https://backflowtesters.fyi/us/md/bladensburg/category/backflow-installation.md): 1 backflow tester
- [Cobourg](https://backflowtesters.fyi/ca/on/cobourg/category/backflow-installation.md): 1 backflow tester
- [Concord](https://backflowtesters.fyi/ca/on/concord/category/backflow-installation.md): 1 backflow tester
- [Gaithersburg](https://backflowtesters.fyi/us/md/gaithersburg/category/backflow-installation.md): 1 backflow tester
- [Kensington](https://backflowtesters.fyi/us/md/kensington/category/backflow-installation.md): 1 backflow tester
- [Lindsay](https://backflowtesters.fyi/ca/on/lindsay/category/backflow-installation.md): 1 backflow tester
- [Mississauga](https://backflowtesters.fyi/ca/on/mississauga/category/backflow-installation.md): 1 backflow tester
- [Orangeville](https://backflowtesters.fyi/ca/on/orangeville/category/backflow-installation.md): 1 backflow tester
- [Pickering](https://backflowtesters.fyi/ca/on/pickering/category/backflow-installation.md): 1 backflow tester
- [Richmond Hill](https://backflowtesters.fyi/ca/on/richmond-hill/category/backflow-installation.md): 1 backflow tester
- [Silver Spring](https://backflowtesters.fyi/us/md/silver-spring/category/backflow-installation.md): 1 backflow tester
- [Upper Marlboro](https://backflowtesters.fyi/us/md/upper-marlboro/category/backflow-installation.md): 1 backflow tester