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Program Details

LEaC Shield Program Overview

LEaC Shield is a cost-effective solution for stopping pinhole leaks in water pipes. Whether your building uses copper, brass, iron, steel, or even lead pipes, we offer a safe and fast solution that can protect all types of pipe systems—new or old. Our process uses an NSF-certified, food-grade mineral to prevent corrosion without requiring major changes to your pipes.

Why Corrosion Happens in Water Pipes

Corrosion occurs when water interacts with metal pipes, often causing small holes, known as pinhole leaks. The primary cause of corrosion is the presence of oxygen and minerals in the water, which can react with the metal over time. Factors such as water acidity, temperature, turbulence, flow imbalances, non-stop flow and fluctuations in water pressure can accelerate the corrosion process. This damage can lead to costly repairs, water loss, mold growth and extend periods of restoration downtime.

Key Benefits of LEaC Shield:

  • Quick Installation: The entire process typically takes just 6 hours. Disruption to tenants is very minimal.
  • Cost-Effective: 33-year Total cost of this program is less than 15% of pipe replacement on average. Save on ongoing pipe repairs and avoid future pipe replacement.
  • Protection Range: Over 12,000 apartments and 185 buildings are already protected in Southwestern Ontario Canada.
  • Non-invasive: We don’t modify your pipes in any way. If the LEaC Shield program is removed later, your piping returns to pre-treatment conditions.

How LEaC Shield Works

Our treatment stops the corrosion that causes pinhole leaks by applying a safe, tested mineral called N Sodim Silicate, also called waterglass, to your water supply (link to NSF certification). We maintain a small residual of this mineral in your water, so this thin film is maintained as water is consumed in your building. Typically, this will range between 6-20 parts per million (ppm). Each month, a trained service technician will complete maintenance on the equipment and replenish the mineral stored securely on site.

Proven Results:

  • Our treatment is already in use by various public utilities and buildings across North America, Australia, and Europe.
  • We ensure compliance with Canadian and International health standards, and our chemicals are approved for use in drinking water.
  • With a success rate of 99%, LEaC Shield has eliminated over 40,000 pinhole leaks for our satisfied clients. Read testimonials here

History of Mineral Coating Pinhole Leat Prevention

Our water treatment process of stopping corrosion in pipes uses safe minerals. The timeline below outlines a brief history of the use of these minerals in England and Canada.

  • The First Usage

    Scientists in England discover pipe coating process, using naturally occurring minerals. Use it to protect public drinking water pipes

    1880's

  • Lorenzen's Modernization

    Mineral pipe coating introduced by James Lorenzen, P. Eng., to protect Ontario hospital pip system, preventing pinhole leaks ever since

    1985

  • Pinhole Leak Prevention Program

    Lorenzen Engineering starts to provide a water pipe pinhole leak prevention program to select clients throughout Southwestern Ontario

    1992

  • LEaC Shield Established

    LEaC Shield is established to focus our consulting engineering efforts exclusively on water pipe pinhole leak prevention

    2012

  • LEaC Shield's Success

    The LEaC Shield program prevents pinhole leaks in about 10,000 apartments, nursing home, commercial, and school facility units

    Today

Certification & Safety

Applicable Law, Regulations and Standards for Ontario drinking water:

Our LEaC Shield food-grade certified mineral N Sodium Silicate complies with the Law, Standards, and Regulations listed above and have no adverse environmental or health impact. Drinking water sources and many foods produced throughout the Great Lakes region naturally contain these minerals. See this link to an important independent report on the health benefits of Silica in drinking water. This report was completed for the City of Longview WA, USA. Their drinking water regularly has 15 times the amount of silica that LEaC Shield uses to protect pipes here in Ontario.

Where is Sodium Silicate used?

Municipalities within Ontario that make use of silicates in their drinking water supply, often to sequester Iron or control pH. This treated water serves all residential, commercial and institutional customer(s), located in:

Get in Touch

To get more information about LEaC Shield or to request a free assessment of your building’s water distribution system, send us a message…

About LEaC Shield Ltd.

Founded in 1992, LEaC Shield is a family-owned engineering consultancy that provides water system consulting, engineering and master plumbing services throughout Ontario, Canada.

We pride ourselves on our use of Canadian-made products, and we're excited to offer superior-quality water monitoring and control equipment through our sister company WATERSHIELD.

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LEaC Shield Ltd.
123 Consortium Court
London, Ontario
N6E 2S8

1-855-946-1783


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