Department inspectors visited 15 homes that were being weatherized by CEDA and paid for by stimulus funds. "We found that 14 of the 15 homes…failed final inspection because of poor workmanship and/or inadequate initial assessments," the report says. In eight of the homes, CEDA had come up with unworkable and ineffective plans -- like putting attic insulation in a house with a leaky roof. In ten of the homes, "contractors billed for labor charges that had not been incurred and for materials that had not been installed." The report calls billing problems "pervasive," with seven of ten contractors being cited for erroneous invoicing. And the department found "a 62 percent final inspection error rate" when CEDA inspectors reviewed their own work.