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Backflow Prevention

Gaithersburg Backflow Prevention

Nearly Three Decades of Quality Service in Maryland

Backflow is the unintentional reversal of the flow of water through your plumbing system, which allows stale water to mix with the fresh drinking water supply. Backflow preventers are generally found on appliances such as boilers, radiators, and shower heads, and you can have backflow valves installed. Mallick Plumbing & Heating, Inc. provides backflow prevention in Gaithersburg and surrounding areas of Maryland.

If you have questions about backflow prevention and want to learn about the options, call (301) 804-6759 to speak with a knowledgeable member of our staff.

Causes of Backflow

While relatively uncommon, backflow occurs more often than most people think. Generally, it is caused by either an increase in pressure on the wastewater side of the plumbing system or a drop in pressure on the supply side, which is the most common.

The supply side pressure may drop suddenly due to:

  • A broken water main
  • Increased demand on the water supply as a result of firefighting efforts
  • A widespread power outage
  • Plumbing work requiring draining the entire house
  • New equipment causing a significant pressure change

Regardless of the cause, the last thing you want is wastewater in the drinking water supply. The places where backflow is most likely to occur include plumbing fixtures such as handheld shower heads, appliances such as boilers and radiators, and lawn irrigation systems. The water from these appliances can flow backward due to pressure changes.

Backflow Prevention

Our experienced plumbers offer solutions for backflow prevention in Gaithersburg. One device is a check valve that is installed to prevent water from flowing in the opposite direction, and there are other types of backflow preventers available. We have certified backflow testers to serve residential and commercial customers and all backflow prevention installation, repair, and maintenance services are performed according to current regulations and best practices.

Contact us today or give us a call at (301) 804-6759 for all your backflow prevention needs.

Customer Feedback

We are committed to providing quality service 
& our reviews speak to that!
  • Replaced Garbage Disposal and Installed Facet Cartridge

    “Jimmy was professional, friendly and efficient. He even suggested some tips on how to clean and maintain the garbage disposal. During these unprecedented times, really appreciate him wearing a face ...”

    - Deb Kronsberg
  • Great to work with

    “We've worked with Jeff, Jimmy and several others from Mallick a few times now - they have become our go-to for plumbing and natural gas projects, both planned and emergency. The team (including ...”

    - LVDLVD
  • Exceeded my Expectations

    “They saved my life! If you need a plumber this is the company to call. Everyone was wonderful - Dale, Adam, Conner, Troy and Jasmine - were so helpful and professional. I had a problem over the 4th of ...”

    - Wendy B
  • Price was fair and work was excellent!

    “Chad was the technician that came to my home. He diagnosed the toilet problem within seconds and fixed a few other things for us too. Also gave plumbing tips to help us avoid problems in the future. ...”

    - Davina C.
  • Knowledgeable and Fair

    “He is very knowledgeable and helped us understand what was going on with our hot water.”

    - Frank R.

The Mallick Plumbing & Heating Difference

What sets us apart from the competition? 
  • Financing & Special Offers

    Payment plans and seasonal specials make it easier for our customer to get what they need when they need it!

  • Professional & Well Trained Technicians

    Our team of technicians is licensed and fully trained. We participate in ongoing training to stay up to date with industry and safety standards.

  • Emergency Service Available

    We offer our customers 24/7 emergency service for all plumbing issues. Providing solutions and peace of mind.

  • Warranties & Guarantees

    We offer a 1-year warranty on new installations. Plus, 30-days on repairs!

  • Customers First

    We're always looking for ways to provide our customers with a great experience. We are happy to offer an online payment option for our customer's convenience.

  • Award Winning Service

    We've won dozens of awards from countless organizations. Our service, professionalism, and quality of work are unmatched.