Our Services

At Lake County Backflow, we provide reliable and certified backflow testing for residential, commercial, and municipal properties. We handle everything—from testing to submitting all required paperwork—so you don’t have to lift a finger after scheduling. With same-day results and seamless compliance reporting to local water authorities, we make the process easy, efficient, and stress-free.

Plumbing and pipe system with a valve and pressure gauge in a mechanical room.

Residential Backflow Testing

  • Protecting your home's drinking water is essential. At Lake County Backflow, we specialize in residential backflow testing to ensure your water supply remains clean, safe, and in compliance with local regulations.

    Backflow occurs when water flows in the opposite direction, potentially allowing contaminants from irrigation systems, boilers, or other sources to enter your clean water lines. A properly functioning backflow prevention device stops this from happening—and annual testing is required to make sure that device is doing its job.

    Our certified technicians provide fast, reliable testing for all types of residential backflow prevention devices. We handle everything from scheduling to submitting the test results directly to your municipality, making the process simple and stress-free.

    Why Choose Us?

    • State-certified and experienced testers

    • Friendly, on-time service

    • Direct submission of test reports

    • Serving Lake County, northern Cook County, and McHenry County

    Schedule your annual test today and keep your home’s water supply protected.

  • First Device $100

    Each Additional Device (same appointment): $50

Industrial piping system with red shut-off valves, green wiring, and various plumbing components inside a utility room.

Commercial Backflow Testing

  • A failed backflow prevention device can disrupt operations, pose health risks, and lead to fines. At Lake County Backflow, we provide fast, reliable commercial backflow repair services to keep your property safe, compliant, and up and running.

    Our licensed technicians have experience working with a wide range of commercial systems, including those found in retail spaces, restaurants, apartment buildings, medical facilities, and industrial properties. Whether your device needs a minor part replacement or a full rebuild, we’ll diagnose the issue and perform the necessary repairs with minimal disruption to your business.

    Our Commercial Repair Services Include:

    • Thorough diagnostics and inspection

    • Repairs for all major makes and models

    • Retesting and compliance documentation

    • Coordination with facility managers, HOAs, and local authorities

    • Priority scheduling for urgent repairs

    We understand the importance of keeping your water system protected and your operations compliant. Contact us today to schedule a repair or request a service quote.

  • Testing and certification: $125

    Multi-site or bulk discount (optional): Offer if testing 10+ devices at once

    *Additional filing fee of $15 per device may apply

Industrial plumbing setup with red and blue valves and pipes indoors.

Backflow Device Repair

  • If your backflow prevention device fails its annual test or shows signs of wear, Lake County Backflow is here to help. We offer expert backflow repair services to get your system back in compliance quickly and efficiently.

    Our certified technicians can diagnose and repair most makes and models of backflow preventers—whether it’s a leaking valve, broken spring, or internal component issue. We use quality parts and follow all state and local guidelines to ensure your repair is done right the first time.

    What We Offer:

    • Prompt diagnosis and repair

    • Competitive, upfront pricing

    • Testing and report submission after repair

    • Service for residential and light commercial systems

    Don’t wait—if your device needs attention, contact us to schedule a repair and keep your water supply safe and code-compliant.

  • Please call for pricing.

Contact us

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