Seasonal leaves + light freeze = overflow + ice risk. Here’s the fast version—then grab the full breakdown:
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What “A+” looks like: seamless aluminum (5" or 6"), correct slope, 3×4" downspouts on big/steep roofs, tight hanger spacing, smart outlet placement, extensions away from the foundation, and optional micro-mesh guards.
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Price snapshot: ~$4,000+ for a typical eavestrough-only replacement. Soffit & fascia cost extra per linear foot. Full system (eavestrough + soffit + fascia) often lands near $12,000 depending on size/complexity.
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5" vs 6": 6" + 3×4" downs move ~40–50% more water—worth it for large planes, heavy rain, or lots of trees.
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Cold-climate note: Ice dams are a building-science problem; pair drainage fixes with air-sealing, insulation, and ventilation.
Read the full guide with images, explainers, and FAQs:
https://blog.lfbuilders.ca/blog/eavestrough-gutter-guard-cost-guide-2026/