10 Most Common Flaws Found During Home Inspections In a study of more than 50,000 residences, here are the top 10 defects found during home inspections. 54.9% Doors need adjusting/servicing 54.8% Doors need adjusting/servicing 54.5% Doors need adjusting/servicing 53.7% Doors need adjusting/servicing 48% Doors need adjusting/servicing 45.1% Doors need adjusting/servicing 40.5% Fixtures and/or bulb problems 33.9% Interior caulking, grout and sealer are missing.