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New Jersey Backflow Testing

Local experts providing mechanical services and backflow testing across New Jersey.

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Why us

Trusted Mechanical Services

  • Certified Backflow Testing

  • Expert Mechanical Solutions

  • Preventative Mechanical Service

Top Services

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Protect your water supply with certified backflow testing and preventer installation services.

Backflow Testing and Prevention

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Keep your water systems reliable with water heater relief valve replacement and sump pump maintenance.

Water Heater and Sump Pump Services

Reliable Backflow Testing

Annual plans and service contracts available

Service areas

Proudly serving All of New Jersey

  • Clifton

  • Wayne

  • Paterson

  • Edison

  • Egg Harbor Township

  • Trenton

  • Totowa

  • Rockaway

  • Jersey City

Our promise

About DeMattia Services LLC

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FAQs

Frequently asked questions

Answers to common plumbing questions from our North New Jersey customers.

Question

What is backflow testing and why is it important?

Question

How often should I have my sump pump serviced?

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