About Us2023-07-15T19:48:24+00:00

About Backflow Technology, LLC

Full-Service Backflow Prevention & Cross Connection Control Company

Carol and Phil at Backflow Technology

Backflow Technology, LLC is a Class A Plumbing Contractor specializing in backflow prevention and cross connection control. Founded in 1997 as a backflow prevention assembly testing, repair, and installation company by Philip S. Barbe, Jr., who remains the company’s senior cross-connection authority and serves as the Executive Vice President. Carol Barbe serves as the President and CEO overseeing the daily business operations. We are the oldest family-owned backflow prevention and cross connection control company in the DMV area.

Backflow Technology is a full-service backflow company based in Ashburn, Virginia serving the DMV area for over 26 years, solely specializing in testing, repairing, installation, and consulting of backflow prevention assemblies for commercial, residential, industrial, medical, government and state facilities. Our company employs full-time state licensed backflow prevention professionals who are also licensed as master plumbers and journeyman plumbers, with extensive knowledge and significant field testing and repair experience on all sizes and models of backflow assemblies and are current in all regulations and specifications when they are modified or changed. We have over 60 years of combined experience solely in backflow prevention and cross connection control. Our office team is knowledgeable and eager to answer customer calls during business hours. Ensuring your drinking water is free from contamination is a responsibility that the experts at Backflow Technology take very seriously, and we encourage our customers and the community to ensure their drinking water is safe and always flowing forward.

There are many companies that offer backflow prevention assembly inspection services and choosing the right one can be a daunting task. Important things to look for when selecting a company is to ensure they are fully insured, adequately licensed to not only inspect, but also licensed to perform the required repair of backflow prevention assemblies in the event the assembly fails inspection. If a problem is found during the yearly inspection, the equipment must be repaired or replaced pursuant to the timeframe allotted by the local water authority. Trusting your health, the health of others, more importantly your life or your loved ones should be in the hands of experts such as Backflow Technology, LLC.

Backflow Technology is also a company with a big heart for our community. We strive as business leaders to embrace giving back and making a difference in our community. We lead by example and give of our time, talent, and treasure. Carol Barbe, our President and CEO has served and currently serves on many nonprofit boards and is proud to serve as the 2023 Chair of the Loudoun County Chamber of Commerce. Volunteerism, leadership, and commitment are key attributes of who we are as leaders and encourage our team and others to give back and make an impact in the community.

Emergency Service

You can depend on us 24 hours a day 7 days a week…we are a phone call away and will arrive within an hour.


We are fully insured with VALID General Liability and Workers Compensation Insurance.


Our professional licensed backflow prevention device workers, the best trained in the industry providing dependable service and arrive in uniform driving a Backflow Technology, LLC identifiable vehicle.


We prepare and submit all the required paperwork timely to the local water authority to ensure you are in compliance at no extra cost.


Trusted & Recommended Since 1997

Licensed & Insured

Emergency Service Available 24/7



Backflow Prevention & Cross Connection Control Services

Backflow Technology LLC BBB Business Review

VA Class A Contractor