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  • Rowan Williams Davies & Irwin Inc. (RWDI) Website Contacts
    (519) 823-1311
    600 Southgate Drive, Guelph, ON N1G 4P6

    RWDI delivers climate and performance engineering consulting worldwide, helping clients create resilient, sustainable buildings and infrastructure. Their services span design, analysis, and optimization for sectors like construction, transportation, manufacturing, mining, energy, and iconic structu…