A warranty period is a specified timeframe after construction completion during which contractors are responsible for correcting defects in materials or workmanship at their expense. Municipal construction contracts typically include warranty periods of one to two years for general work, with longer periods for specific components like roofing or mechanical systems. During the warranty period, municipalities can require contractors to repair problems that emerge from faulty construction rather than normal wear. Warranty holdbacks—portions of contract payments retained until warranty expiration—provide financial leverage ensuring contractors honour warranty obligations. Warranty inspections before period expiration identify defects requiring correction. Clear warranty terms in contracts specify what's covered, notification procedures, and response timeframes. Effective warranty management protects municipal infrastructure investments.