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The 5 Most Common Problems Found in Montreal Home Inspections

5 min readFebruary 15, 2026

The 5 Most Common Problems Found in Montreal Home Inspections

After performing over 8,500 house inspections in Montreal, we've seen patterns emerge. Here are the five issues we encounter most frequently.

1. Foundation Cracks and Water Infiltration

Found in: 60% of inspections

Montreal's freeze-thaw cycles create the perfect conditions for foundation problems. Watch for:

  • Horizontal cracks (structural concern)
  • Step cracks in concrete block
  • Water stains or efflorescence
  • Musty basement odors

2. Roof Problems

Found in: 40% of inspections

Montreal's harsh winters accelerate roof deterioration:

  • Curling or missing shingles
  • Ice dam damage
  • Flashing failures

3. Insulation Deficiencies

Found in: 55% of inspections

Energy loss can be significant:

  • Inadequate attic insulation
  • Missing vapor barriers
  • Air leaks
  • Thermal bridges

4. Heating and Cooling Issues

Found in: 35% of inspections

Comfort and efficiency problems often trace back to:

  • Aging furnaces or boilers
  • Poor heat distribution
  • Cooling equipment past its expected life

5. Exterior and Drainage Problems

Found in: 30% of inspections

Water management around the building matters:

  • Grading toward the foundation
  • Clogged or missing downspout extensions
  • Deteriorated siding or trim

Prevention is Key

A professional inspection can identify these issues before they become your problem.

Book your inspection today.

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