Northern Illinois Backflow is a fully licensed plumbing and backflow prevention contractor.   We not only install, test and service backflow prevention devices, we are also available to service all your plumbing needs.

Our goal is to ensure all backflow devices are installed, tested and maintained properly for your protection.

Northern Illinois Backflow provides expert service in an efficient and professional manner.

Because backflow prevention is the law – it is critical to secure a licensed plumbing contractor that is knowledgeable in the prevention of water contamination and cross-connection control devices

We guarantee every backflow prevention device is in compliance with state and local municipality laws and the EPA.

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