Reduced Pressure Zone

RPZ Certification Schaumburg
  • Required reporting to municipalities and testing companies
  • Testing and certification of devices
  • Installation and repair of RPZ devices
  • Annual reminders of required PRZ testing
Since 1999

RPZ Certification, Installation & Maintenance Service Schaumburg IL

Affordable & Prompt RPZ Certification.

RPZ, or Reduced Pressure Zone, refers to devices that protecct the drinking water supply from contamination by indoor fire sprinkler systems, lawn irrigation systems, and other equipment. The law requires annual certification for companies to install and service RPZ devices. MAS Plumbing is fully certified and our technicians are registered with Illinois EPA Division of Public Water. 


Almost all villages and towns in the Chicago area, require you to have a backflow preventer test completed on an annual basis.

Getting your backflow tested and having a backflow prevention set-up is vital to prevent contaminated water from getting into your kitchen or bathroom. Even if you have an existing backflow prevention device, in Illinois you must have annual backflow testing to guarantee that the device is working properly.


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