What time can construction start?

In most cities, construction is permitted to start at 7:00 AM on weekdays. Weekend hours are often more restricted, typically starting at 8:00 AM or 9:00 AM on Saturdays.

What Qualifies as Construction Noise? (And When Is It Illegal?)

Published on: October 22, 2025

Key Takeaways

Construction is a common noise ordinance exemption, but the rules are specific. Learn the typical hours for construction noise and what to do if a project is violating them.

Permitted Hours are Key

The most important part of any construction noise ordinance is the definition of permitted work hours. These are the times when loud construction activities are legally allowed. A typical schedule is:

Weekdays: 7:00 AM to 7:00 PM
Saturdays: 9:00 AM to 5:00 PM
Sundays and Public Holidays: Often, no loud construction is permitted at all.

These times can vary, so it's crucial to check your specific local ordinance.

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What Counts as 'Construction Noise'?

Ordinances typically define this broadly to include any noise associated with the erection, demolition, alteration, or repair of any building or structure. This includes activities like:

Operating heavy machinery like bulldozers, backhoes, or jackhammers.
Using power tools such as saws, drills, and nail guns.
Loud shouting or amplified music from workers on site.

Some cities may also have specific decibel limits for construction sites, even during permitted hours, measured from the property line.

What About Emergency Repairs?

Virtually all ordinances have an exemption for emergency work. If a water main breaks or there's a need for urgent structural repairs to ensure public safety, those activities are permitted at any time, day or night. This exemption does not cover routine work that was simply scheduled poorly.

Who to Call for a Violation

If you believe a construction site is violating the permitted hours, the best department to contact is usually not the police. Look for your city's:

Department of Buildings
Code Enforcement or Code Compliance Office

These are the departments responsible for issuing permits and enforcing construction site regulations. When you call, be prepared to give the exact address of the site and the specific times you've observed the noise violation. Our search tool often lists the appropriate contact number under "Local Contacts."

The Takeaway

While construction noise is often unavoidable, it is not unregulated. By knowing the permitted hours in your city, you can effectively identify and report violations, helping to ensure that development doesn't come at the cost of your peace and quiet.