# Find backflow installation Compare backflow installation. Confirm the assembly types and services offered. 16 backflow testers. Also on the [web page](https://backflowtesters.fyi/category/backflow-installation). ## Backflow testers 1. [Acker & Sons, Inc](https://backflowtesters.fyi/us/md/kensington/acker-and-sons-inc.md), Backflow installation, 10516 Summit Ave, Kensington: Acker & Sons, Inc appears on the DC Water register (Registered Backflow Prevention Assembly Service Provider), with an address in Kensington, MD. Services… 2. [All Season Plumbing, Heating, and A/C, Inc.](https://backflowtesters.fyi/us/md/bladensburg/all-season-plumbing-heating-and-a-c-inc.md), Backflow installation, 4210 49th St, Bladensburg: All Season Plumbing, Heating, and A/C, Inc. appears on the DC Water register (Registered Backflow Prevention Assembly Service Provider), with an address in… 3. [Bruce Maly Plumbing & Drain Services](https://backflowtesters.fyi/ca/on/peterborough/bruce-maly-plumbing-and-drain-services.md), Backflow repair, 840 Aylmer St N, Peterborough: Bruce Maly Plumbing & Drain Services appears on the City of Peterborough — Cross Connection Registered Testers register (Registered certified backflow… 4. [Caldwell Plumbing](https://backflowtesters.fyi/ca/on/pickering/caldwell-plumbing.md), Backflow repair, 1885 Clements Road, Unit 270, Pickering: Caldwell Plumbing appears on the City of Peterborough — Cross Connection Registered Testers register (Registered certified backflow prevention device tester),… 5. [Caledon Creek Mechanical Ltd](https://backflowtesters.fyi/ca/on/orangeville/caledon-creek-mechanical-ltd.md), Backflow repair, 78 Centennial Rd Unit 10, Orangeville: Caledon Creek Mechanical Ltd appears on the City of Peterborough — Cross Connection Registered Testers register (Registered certified backflow prevention… 6. [Fransky Mechanical](https://backflowtesters.fyi/ca/on/peterborough/fransky-mechanical.md), Backflow repair, 889 Armour Rd, Peterborough: Fransky Mechanical appears on the City of Peterborough — Cross Connection Registered Testers register (Registered certified backflow prevention device tester),… 7. [Go Tap Plus](https://backflowtesters.fyi/ca/on/mississauga/go-tap-plus.md), Backflow repair, 335 Watline Ave, Mississauga: Go Tap Plus appears on the City of Peterborough — Cross Connection Registered Testers register (Registered certified backflow prevention device tester), with… 8. [Gravity Plumbing and Heating](https://backflowtesters.fyi/ca/on/lindsay/gravity-plumbing-and-heating.md), Backflow repair, 196 St.David Street, Lindsay: Gravity Plumbing and Heating appears on the City of Peterborough — Cross Connection Registered Testers register (Registered certified backflow prevention… 9. [Harvey W. Hottel](https://backflowtesters.fyi/us/md/gaithersburg/harvey-w-hottel.md), Backflow installation, 18900 Woodfield Rd, Gaithersburg: Harvey W. Hottel appears on the DC Water register (Registered Backflow Prevention Assembly Service Provider), with an address in Gaithersburg, MD. Services… 10. [Master Plumbing & Mechanical](https://backflowtesters.fyi/us/md/silver-spring/master-plumbing-and-mechanical.md), Backflow installation, 9232R Warren St, Silver Spring: Master Plumbing & Mechanical appears on the DC Water register (Registered Backflow Prevention Assembly Service Provider), with an address in Silver Spring, MD.… 11. [The Severn Group](https://backflowtesters.fyi/us/md/upper-marlboro/the-severn-group.md), Backflow installation, 375 Prince Georges Blvd Ste.B, Upper Marlboro: The Severn Group appears on the DC Water register (Registered Backflow Prevention Assembly Service Provider), with an address in Upper Marlboro, MD. Services… 12. [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.… 13. [WE Bowers](https://backflowtesters.fyi/us/md/beltsville/we-bowers.md), Backflow installation, 7101 Muirkirk Rd, Beltsville: WE Bowers appears on the DC Water register (Registered Backflow Prevention Assembly Service Provider), with an address in Beltsville, MD. Services named in the… 14. [Lakeland MultiTrade](https://backflowtesters.fyi/ca/on/cobourg/lakeland-multitrade.md), Backflow repair, Cobourg: Lakeland MultiTrade appears on the City of Peterborough — Cross Connection Registered Testers register (Registered certified backflow prevention device… 15. [Nor-Line Plumbing & Mechanical](https://backflowtesters.fyi/ca/on/richmond-hill/nor-line-plumbing-and-mechanical.md), Backflow repair, Richmond Hill: Nor-Line Plumbing & Mechanical appears on the City of Peterborough — Cross Connection Registered Testers register (Registered certified backflow prevention… 16. [ProActive water Solutions Inc.](https://backflowtesters.fyi/ca/on/concord/proactive-water-solutions-inc.md), Backflow installation, Concord: ProActive water Solutions Inc. appears on the City of Owen Sound — Qualified Contractors for Testing Backflows register, with an address in Concord, ON.… ## Backflow installation by city - [Peterborough, ON](https://backflowtesters.fyi/ca/on/peterborough/category/backflow-installation.md): 2 backflow testers - [Beltsville, MD](https://backflowtesters.fyi/us/md/beltsville/category/backflow-installation.md): 1 backflow tester - [Bladensburg, MD](https://backflowtesters.fyi/us/md/bladensburg/category/backflow-installation.md): 1 backflow tester - [Cobourg, ON](https://backflowtesters.fyi/ca/on/cobourg/category/backflow-installation.md): 1 backflow tester - [Concord, ON](https://backflowtesters.fyi/ca/on/concord/category/backflow-installation.md): 1 backflow tester - [Gaithersburg, MD](https://backflowtesters.fyi/us/md/gaithersburg/category/backflow-installation.md): 1 backflow tester - [Kensington, MD](https://backflowtesters.fyi/us/md/kensington/category/backflow-installation.md): 1 backflow tester - [Lindsay, ON](https://backflowtesters.fyi/ca/on/lindsay/category/backflow-installation.md): 1 backflow tester - [Mississauga, ON](https://backflowtesters.fyi/ca/on/mississauga/category/backflow-installation.md): 1 backflow tester - [Orangeville, ON](https://backflowtesters.fyi/ca/on/orangeville/category/backflow-installation.md): 1 backflow tester - [Pickering, ON](https://backflowtesters.fyi/ca/on/pickering/category/backflow-installation.md): 1 backflow tester - [Richmond Hill, ON](https://backflowtesters.fyi/ca/on/richmond-hill/category/backflow-installation.md): 1 backflow tester - [Silver Spring, MD](https://backflowtesters.fyi/us/md/silver-spring/category/backflow-installation.md): 1 backflow tester - [Upper Marlboro, MD](https://backflowtesters.fyi/us/md/upper-marlboro/category/backflow-installation.md): 1 backflow tester - [Washington, DC](https://backflowtesters.fyi/us/dc/washington/category/backflow-installation.md): 1 backflow tester ## Related categories - [Backflow testing](https://backflowtesters.fyi/category/backflow-testing.md): 261 backflow testers - [Backflow repair](https://backflowtesters.fyi/category/backflow-repair.md): 8 backflow testers - [Fire line backflow testing](https://backflowtesters.fyi/category/fire-line-backflow-testing.md): 4 backflow testers - [Irrigation backflow testing](https://backflowtesters.fyi/category/irrigation-backflow-testing.md): 3 backflow testers