In addition to performing pre-purchase and home inspections, many inspectors help homeowners with analysis and solutions of specific problems, such as wet basements, energy conservation and cracked foundations. Inspectors are also frequently called in to review restoration and home improvement plans as well as maintenance specifications and contracts. They can also inspect work upon completion to ensure that a contract has been properly fulfilled. If you find that you are involved in litigation regarding contractual work performed on your house, an inspector can provide expert witness testimony. Of course, most inspectors also inspect commercial properties, multiple dwellings, condominiums, townhouses and cooperative apartments.