Most common home inspection red flags

Published on 13 March 2025 at 05:35

Home inspections can reveal potential issues that may be deal-breakers for buyers. Here are some of the most common red flags inspectors find:

Structural Issues

  1. Foundation Cracks or Settling – Large cracks, uneven floors, or doors that don’t close properly may indicate foundation problems.
  2. Roof Damage – Missing shingles, leaks, or signs of aging can signal costly repairs.
  3. Water Damage & Mold – Stains on ceilings or walls, musty smells, or mold growth can indicate leaks and moisture issues.

Electrical Problems

  1. Outdated Wiring – Knob-and-tube or aluminum wiring can be safety hazards and expensive to replace.
  2. Overloaded Electrical Panel – Double-tapped breakers or outdated panels (like Federal Pacific or Zinsco) can be fire risks.
  3. Non-GFCI Outlets – Missing Ground Fault Circuit Interrupters (GFCIs) near water sources is a code violation.

Plumbing Concerns

  1. Leaky or Corroded Pipes – Visible leaks, rusted pipes, or outdated materials (like polybutylene) can signal future plumbing failures.
  2. Slow Drains & Low Water Pressure – Could indicate clogged pipes, leaks, or failing water supply lines.
  3. Water Heater Issues – Rust, sediment buildup, or an aging unit may require replacement.

HVAC System Problems

  1. Old or Malfunctioning HVAC System – An outdated furnace or AC unit may be inefficient and costly to replace.
  2. Dirty or Clogged Ducts & Filters – Poor maintenance can reduce efficiency and indoor air quality.

Pest Infestations

  1. Termite or Carpenter Ant Damage – Hollowed-out wood, mud tubes, or sawdust piles can indicate serious structural threats.
  2. Rodent Infestations – Droppings, chewed wires, or nests can point to ongoing pest problems.

Exterior & Drainage Issues

  1. Poor Grading & Drainage – Water pooling around the foundation can lead to basement leaks and structural damage.
  2. Damaged Siding or Windows – Cracks, rot, or missing caulking can let in moisture and pests.

Other Major Red Flags

  1. Asbestos or Lead Paint – Common in homes built before the 1980s, requiring professional remediation.
  2. Radon Gas – High radon levels in basements can pose health risks and may require mitigation.
  3. Illegal Additions or Renovations – Unpermitted work can lead to future legal and insurance issues.

 

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