M H Barnes - Plumber | Silver Spring, MD
Cross Connection Cross Connection Cross Connection

Educate yourself on our services

What is Cross Connection/Backflow Prevention? This system is designed to keep the water flowing out clean. Mostly used in a commercial setting like a dental office for example, but can also be installed in your home.

Backflow preventer, also known as “one direction water flow," keeps contaminated water from flowing back in the good drinking water. We, at M H Barnes, Silver Spring, MD, will test this system every year once installed to make sure it is running properly.


Since 1955 we have been pleasing customers in Silver Spring and surrounding counties, and you could be next.

Quality maintenance

Whether you are seeking a full remodeling project, repairs, or yearly maintenance, we are the company for you. Let our experienced technicians give your home or business a quality upgrade.


We strive to give you quality results at an affordable rate. Give us a call, we will work around your schedule and budget.

Going above expectations

Over 60 years of experience

Call to see what we can do for you