Five-Star Review for Somerville and Their Inside Sales Manager Andy I have been working with Somerville for close to twenty years and I can say without hesitation that Andy is the heart and soul of…

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E.E.

E.E.09/10/2025

Hello. I live in Accokeek, MD and our water heater started leaking very bad and it was past 10 pm. I Google for a plumber and decided to click on Emerald Plumbing Co. When Ms. Devin heard my issue…

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T.T.

T.T.10/16/2025

I called Emerald Plumbing after dealing with a very disappointing large, well known and advertised plumbing company in the area, whose customer service was dismal and their assessment incorrect…

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G.G.

G.G.12/09/2025

This was the 3rd plumber to come to the house to solve an issue where the water was backing up in the basement. Overall they solved the problem and showed up. Did the work and so far all is good. If…

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Backflow Testing in Alexandria, Virginia

Emerald Plumbing Co. provides professional backflow prevention testing services in Alexandria, Virginia. Annual backflow testing is required by most water utilities to protect public water supplies from contamination through cross-connection control compliance. Their services include emergency service, serving both residential and commercial properties throughout the Alexandria area.

Whether you need a routine RPZ valve inspection, backflow prevention device testing, or a certified tester to file compliance reports with your local water authority,Emerald Plumbing Co. can help. Homeowners, HOAs, and property managers can request a free quote using the form on this page.