Construction hours in Wilmington, DE — sometimes called construction noise rules or contractor work-hour ordinances — set when contractors can run power tools, hammers, and heavy equipment.
Construction and power equipment noise in Wilmington must comply with the city's decibel limits. Work creating excessive noise outside normal daytime hours requires a permit exemption.
Wilmington's noise code (Ch. 11, Art. III) applies to construction sites; noise-generating construction activity that exceeds 65 dB(A) at the nearest residential property line after 11 PM or before 7 AM is prohibited. Applicants may seek an administrative exemption for time-sensitive construction projects. Vehicle repairs that create noise disturbances in residential districts are prohibited between 9 PM and 8 AM (§11-66).
Violations subject to civil penalties under Ch. 11. After-hours construction without an exemption permit may result in stop-work orders.
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See how Wilmington's construction hours rules stack up against other locations.
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