Winter Preparation Guide

Get Your Home Ready Before the Cold Arrives

A practical seasonal checklist for Canadian homeowners: from insulating pipes in unheated crawl spaces to inspecting shingles before the first snowfall.

Updated June 2026  ·  Applicable across Canadian climate zones

Icicles forming on house eaves in Montreal, Canada — a sign of inadequate insulation or ventilation

Four Areas That Require Annual Attention

Winter preparation in Canada is not a single weekend project. It involves four distinct systems in and around the home, each with its own failure modes when temperatures drop below freezing.

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Pipe Insulation

Water pipes running through unheated spaces — garages, crawl spaces, exterior walls — are vulnerable to freezing once indoor temperatures fall. Foam pipe insulation and heat tape are common solutions.

  • Identify all pipes in unheated zones
  • Apply foam sleeves to exposed copper or PEX
  • Disconnect and drain exterior hose bibs
  • Insulate pipes near foundation sill plates
  • Know the location of your main water shutoff
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Roof Inspection

Before the first snowfall, roofs need a visual check for damaged shingles, compromised flashing, and signs of inadequate attic ventilation — the root cause of most ice dams.

  • Inspect shingles for curling, cracks, or missing sections
  • Check flashing around chimneys and roof penetrations
  • Confirm attic insulation is not blocking soffit vents
  • Assess attic ventilation to prevent warm-air buildup
  • Clear any debris that has collected near valleys
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Gutter Clearing

Leaves, seeds, and debris accumulate through autumn and block gutters just as freeze-thaw cycles begin. Blocked gutters overflow, saturate fascia boards, and create ice dams at the eave line.

  • Clean gutters after the last leaves have fallen
  • Flush downspouts with a garden hose
  • Check downspout extensions direct water away from the foundation
  • Inspect gutter hangers and re-secure loose sections
  • Consider mesh guards if debris buildup is a recurring issue
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Door & Window Sealing

Drafts around door frames and window sashes can account for a significant share of heat loss. Weatherstripping deteriorates over time and should be replaced when gaps are visible or a draft is felt.

  • Check weatherstripping around all exterior doors
  • Apply door sweeps or thresholds where gaps exist at the floor
  • Re-caulk around window frames where old sealant has cracked
  • Inspect storm windows and ensure they close fully
  • Use a lit candle or incense stick to detect drafts near frames

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About This Site

North Willow House is an informational reference for homeowners in Canada preparing their properties for winter. Content is based on publicly available guidance from organizations such as Natural Resources Canada and provincial building codes.

This site does not provide professional engineering or contracting advice. Consult a licensed contractor for assessments specific to your property.

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