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Backflow Prevention

Gaithersburg Commercial Backflow Prevention

Proudly Serving Customers throughout Maryland

A basic but critical part of plumbing is backflow prevention. Backflow is the accidental reverse flow of water through the plumbing. This may not sound like it’s a serious problem, but when backflow happens, wastewater can mingle with the freshwater drinking supply — and that’s not something you want to happen!

Your system should have a number of backflow preventers attached to appliances that might allow backflow. These include handheld showerheads, boilers, radiators, and especially irrigation systems. Count on the professional plumbers at Mallick Plumbing & Heating, Inc. to take care of your commercial backflow preventer in Gaithersburg. We can install backflow valves on the fixtures that need them so your health is protected.

Contact us today to schedule an appointment and find out how we can help your business thrive!

What Causes Backflow?

Backflow isn’t common, but it still occurs more often than people think. What causes it is either an increase in pressure on the wastewater side or a drop in pressure on the supply side.

This change in pressure could result from:

  • A broken water main
  • Work on a property’s plumbing that requires draining down the entire property
  • A widespread power outage
  • Firefighters placing a large demand on the local water supply to put out a fire
  • A new piece of water-using equipment

Backflow Prevention

Regardless of the cause, the outcome is similar: non-potable (undrinkable) water moves the wrong direction through the building’s plumbing. The places on a property where backflow can occur are handheld shower heads, lawn irrigation (such as sprinklers), radiators, and boilers. Water from any of these appliances can potentially flow backward in the plumbing because of pressure changes. This places stale water from the common system in the fresh drinking water. One of the major areas of concern where a house needs backflow prevention devices installed is on irrigation systems, such as sprinklers and hose bibs.

When a backflow prevention device detects a change in pressure in the plumbing, a check valve shuts to stop water from flowing in the wrong direction. The check valve isn’t the only type of backflow preventer available. If you’re a property owner and are unsure if you need to have backflow prevention or which backflow preventers will do the job, call on our certified plumbers for assistance.

Dependable Service Protecting Your Business

According to Maryland Law, only a licensed Backflow Tester is permitted to service backflow preventers. A Tester must be at minimum a Journeyman Plumber who has completed a State of Maryland-sanctioned 40-hour certification course for Cross-Connection Technicians and then undergoes recertification every three years.

At Mallick Plumbing & Heating, Inc., we have the certified Backflow Testers to take care of your commercial space. Our installation, replacement, repair, and maintenance services are performed the correct way so people in your home are protected and the house remains up to code.

Call (301) 804-6759 today for backflow prevention service in Gaithersburg and the surrounding areas.

Customer Feedback

We are committed to providing quality service 
& our reviews speak to that!
  • 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.
  • Happy Customer!

    “Mallick has been the best by far.”

    - Mike C.
  • Explained things in layman terms so it was easy to understand

    “I had an emergency after Washington Gas said that there was a gas leak from the meter from the regulator and they said that it needed to be replaced immediately. They were able to send someone over in ...”

    - Alice W.
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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!

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    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.