Does Your Property Require Backflow Preventer Testing?

If your home or business requires certified backflow preventer service, call B&D Plumbing!

Backflow preventer testing is critical for restaurants, apartment buildings, and other residential and commercial facilities because it helps keep your potable water supply free of contaminants. What you want to avoid is contaminated water entering back into the water you consume. A properly functioning backflow preventer keeps this from occurring. If your home or business requires certified backflow preventer service, call B&D Plumbing!

Understanding Backflows

Backflow occurs when contaminated water reverses its flow to enter clean water supplies. It can happen at any cross-connection between clean and dirty water lines due to a sudden change in water pressure, like a burst water main. Unfortunately, dirty water can contain hazardous substances such as human waste, chemicals, or pesticides, posing a serious health risk.

Commercial and Residential Backflow Prevention & Testing

At B&D Plumbing, our certified technicians install a safety device to prevent backflow. In the case of an unexpected or significant change in water pressure, this device will deter dirty water from entering the clean water supply. Keep in mind that a professional plumber must install the device appropriately and evaluate it to ensure the clean water line remains contaminant-free.

Certified backflow preventer testing is required by plumbing codes in Maryland. You can rely on B&D Plumbing for all your residential and commercial plumbing needs, as safe drinking water and sewage management should be a priority for everyone.

Different Types of Backflow Preventers

Our customers in Maryland can utilize different types of backflow prevention devices for various applications, including:

  • Air gap – An open space between any appliance or fixture that attaches to a plumbing system and an area where contaminated water can build up.
  • Atmospheric vacuum breaker (AVB)
  • Vacuum breaker
  • Double check valve, or double check valve assembly (DCVA)
  • Reduced pressure zone device (RPZ)
  • Spill resistant pressure vacuum breaker assembly (SPVB)

The Value of Customer Satisfaction in Plumbing

Our customers can receive peace of mind knowing they can count on a B&D Plumbing owner or family member on their property. Notorious for our excellent customer service and attention to detail, B&D Plumbing finds significant satisfaction and value in leaving a happy client after a job excellently done, especially when it comes to backflow preventer testing. Call us today at 301-595-1141 for your free estimate!

Get in Touch With B&D Plumbing, Inc. Today!

Dealing with any plumbing concerns that require a professional to step in? Struggling with an absolute plumbing emergency that can’t wait? Let B&D Plumbing know. B&D Plumbing Inc. services the greater Washington D.C. metropolitan area, including Maryland and Northern Virginia. Get in touch with us by calling (301) 595-1141 or follow us on social media including FacebookXLinkedIn, and Pinterest. As a small, family-owned business, we understand how important your home is—and we offer exceptional service that matches!

This entry was posted on Tuesday, January 20th, 2026 at 12:47 pm. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

Well respected in the industry, Bob and Dave are both members of the Master Plumbers Association WSMPA. Additionally, we have long-standing and personable relationships with the Washington Suburban Sanitary Commission WSSC, and Better Business Bureau. We stay on top of rules and regulation changes, so we are always equipped with the latest information about the how and the why. When you hire a B&D Master Plumber, you are hiring a quality plumber at a quality price.

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