Interlock has completed 35 metal roofs in St. Thomas, ON. Local projects span 3 roof profiles (Slate, Shingle, Cedar Shingle) and were installed between 1998 and 2021.
★★★★★Local roofing factors: freeze–thaw cycles and winter snowfall, plus humid summers that can promote moss and biological growth In St. Thomas, ON—where freeze–thaw winters and humid summers can stress roofing materials—I wish the installer had a helper; given his stage of life he
— Noha and Efren B., St. Thomas, ON · 2021 · Verified ↗
★★★★★St. Thomas, ON — Seeking incentives on Metal Shingles from Interlock Metal Roofing (Ontario) Ltd.? Local roofs endure regular winter snowfall and freeze–thaw cycles that accelerate wear, so premium metal shingles can reduce long-term maintenance. My contractor quoted $22,500 and
— Paul G., St. Thomas, ON · 2020 · Verified ↗
★★★★★St. Thomas, ON roofing note: In a climate with significant annual precipitation and a November–April snow/freeze–thaw season that stresses roofing materials and seals, Interlock Metal Roofing (Ontario) Ltd. Metal Shingles—per the sales rep's material description (#6) versus the c
— Nick H., St. Thomas, ON · 2019 · Verified ↗
★★★★★Local factors: 1) Freeze–thaw extremes: St. Thomas, ON experiences cold winter snaps and seasonal freeze–thaw cycles that increase thermal stress, brittleness and ice‑dam risk on roofs. 2) Snow and ice loads: Winter snowfall (peak in late winter) and periodic snow cover add weigh
— Paul and Luciana G., St Thomas, ON · 2019 · Verified ↗






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