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Structural engineering

Sepco Consulting Engineers

Thornhill engineering firm offering residential structural design and permit drawings for additions, garden and laneway suites across Toronto and the GTA.

Overview

Sepco designs new homes, rear and second-storey additions and load-bearing wall removals, and provides pre-purchase structural assessments and site consultations.

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Last updated October 29, 2026.

Information sources: Business website (October 17, 2026) — garden/laneway suites, additions, Thornhill address; Business website (October 17, 2026) — Hamilton service-area page

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