Number 2 on the list of the top five consumer complaints is home improvement contractors. Problems include shoddy work, failure to start or complete a job, and failure to have proper licensing. Read 10 Musts When Hiring a Contractor about the importance of vetting your contractor, as home repair or improvement issues can be expensive and extremely frustrating. What are the other top 5 complaints? Auto misrepresentations, retail sale problems, landlord/tenant, and credit card/debt billing and fee disputes.