Westminster, CA Noise Ordinances: Construction Hours (2026)
Construction hours in Westminster, CA, sometimes called construction noise rules or contractor work-hour ordinances, set when contractors can run power tools, hammers, and heavy equipment.
Key Facts
- Permitted construction hours
- 7:00 a.m.-8:00 p.m., weekdays incl. Saturday
- Barred entirely
- All day Sunday and federal holidays
- Governing section
- Westminster Code § 8.28.060(E)
- Misdemeanor penalty
- Up to $1,000 fine or 6 months jail
- Infraction fine (1st offense)
- $100, rising to $500 for repeats
- Variance possible
- Via county noise variance board, § 8.28.080
Summary
Westminster's noise ordinance exempts construction, remodeling, and grading activity from the city's general noise limits only when the work occurs between 7:00 a.m. and 8:00 p.m. on weekdays, including Saturday. Outside that window, and at any time on Sunday or a federal holiday, the exemption disappears and construction noise must meet the same interior and exterior decibel limits as every other noise source in the city.
Noise sources associated with construction repair, remodeling, or grading of any real property, provided said activities do not take place between the hours of eight p.m. and seven a.m. on weekdays, including Saturday, or at any time on Sunday or a federal holiday;
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4982734; v10 updated 2026-06-10).
Full Breakdown
Chapter 8.28 (Noise Control) sets exterior limits as low as 45 dB(A) between 10:00 p.m. and 7:00 a.m. in the city's single noise zone, and interior limits that trigger a violation once exceeded for more than five minutes in any hour (§ 8.28.040, § 8.28.050(C)). Section 8.28.060 then lists activities exempted from those limits altogether. Subsection E carves out noise sources associated with construction repair, remodeling, or grading of any real property, but only if the work stays inside the 7:00 a.m.-to-8:00 p.m. weekday window (Saturday counts as a weekday here) and never happens on Sunday or a federal holiday.
A contractor running equipment at 6:00 a.m. or at 9:00 p.m. on a Tuesday, or at any hour on a Sunday, loses the exemption and is measured against the same dB(A) ceilings as a barking dog or a loud stereo. The city's noise variance board, which is the Orange County board sitting for Westminster under § 8.28.080, can grant a variance from these hours by resolution; that variance is enforceable by the health officer, and any breach of its terms is itself unlawful. There is no separate construction-hours permit to apply for: compliance is measured after the fact, by whether the noise level and the clock both fall inside the exemption.
Violations & Fines
Construction noise outside the exempt hours is enforced as any other noise-standard violation under the city's general penalty chapter (§ 1.12.010): a misdemeanor punishable by up to a $1,000 fine, six months in jail, or both, unless the city attorney charges it as an infraction, which carries escalating fines of $100 for a first offense, $200 for a second within a year, and $500 for each further offense. Each day of noncompliance is a separate violation.
Frequently Asked Questions
Can construction happen on Saturday in Westminster?
Is construction noise allowed on Sunday?
What happens if a contractor starts work before 7 a.m.?
Who enforces Westminster's construction-hours rule?
Sources & Official References
Other rules in Westminster
California rules heatmap·Compare Westminster to another location·View the California noise ordinances overview
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Construction Hours in Nearby Cities
How other cities in Orange County handle construction hours.