What are the most common home inspection problems?
Home inspections typically reveal defects in nearly 86% of properties.
The most common issues found fall into five major categories: roofing problems, faulty electrical wiring, plumbing leaks, faulty HVAC systems, and improper foundation or drainage
1. Roofing Issues
Inspectors frequently flag roofs nearing the end of their lifespan.
Missing or worn shingles: Shingles that are curling, brittle, or missing granules.
Damaged flashing: Leaks commonly occur around chimneys, skylights, and vents due to poor seals.Improper attic ventilation: Can trap moisture and heat, leading to wood rot and mold
2. Electrical Deficiencies
Electrical problems pose significant fire and shock hazards and are a top inspection flag.
Missing GFCI outlets: Ground-fault circuit interrupter outlets are required in wet areas like kitchens and bathrooms to prevent shocks.
Outdated wiring: Knob-and-tube or ungrounded wiring.
Overloaded panels: DIY electrical work, double-tapped breakers, or exposed junction boxes
A home inspector will likely determine whether aluminum wiring, which is most common in homes built between 1965 and 1973, is present. Homes today are wired using copper, and aluminum wiring has been found to deteriorate faster than copper. Aluminum is prone to overheating, which could create a fire hazard. People who have lived in a home for 50 years, or those who didn’t get a home inspection in prior moves, may not even know they have it, It doesn’t mean a home will catch on fire, but it increases the odds.
3. Plumbing and Drainage
Plumbing issues cause water damage and mold growth, making them high-priority concerns.
Leaking or corroded pipes: Worn seals, dripping faucets, or outdated piping materials (like old galvanized steel).
Water heater issues: Systems that are old, improperly ventilated, or lacking a pressure relief valve.
Improper grading/drainage: Sloping toward the foundation rather than away from it, which can cause water to pool and lead to structural damage
4. Foundation and Structure
Structural issues affect the long-term integrity of the home and are among the most expensive to repair.
Foundation cracks: Horizontal or vertical cracks in slabs or foundation walls.
Settlement issues: Sloping or uneven floors, or windows and doors that stick.
Damaged load-bearing elements: Wood rot or termite/pest damage in support beams and joists.
5. HVAC System Failures
Inspectors check for age, functionality, and safety of the heating and cooling systems.
Dirty filters & poor airflow: Clogged systems that restrict performance and drive up energy costs.
Leaking refrigerant: Low Freon levels in AC units.
Cracked heat exchangers: A serious safety hazard in older gas furnaces that can lead to carbon monoxide leaks.