Portland, ME Noise Ordinances: Construction Hours (2026)
Construction hours in Portland, ME, sometimes called construction noise rules or contractor work-hour ordinances, set when contractors can run power tools, hammers, and heavy equipment.
Key Facts
- Decibel limit
- 50 dBA in R-zones, Sec. 17-18(a)
- Sept–May quiet hours
- 7:00 p.m.–7:00 a.m.
- June–Aug quiet hours
- 8:00 p.m.–7:00 a.m.
- Weekend/holiday rule
- no start before 8:00 a.m.
- Buffer distance
- within 500 ft of residential/hospital/nursing use
- Exceptions
- emergency repairs; unique non-recurring work w/ notice
Summary
Construction noise above 50 decibels is barred in Portland's residential zones between 7:00 p.m. and 7:00 a.m. from September through May under Sec. 17-18(a); the evening cutoff moves to 8:00 p.m. from June through August. No construction activity of any kind may start before 8:00 a.m. on a Saturday, Sunday or legal holiday.
(a) Within the R-zones, from September 1st to May 31st, no person shall engage in construction activities generating noise exceeding fifty (50) decibels, between the hours of 7:00 p.m. and 7:00 a.m., of the following day within five hundred (500) feet of any building used for residential, hospital or nursing home purposes. From June 1st to August 31st construction activity may continue until 8:00 p.m. Any other language notwithstanding, no construction activity shall begin before 8:00 a.m. on a Saturday, Sunday or legal holiday.
Official source re-checked September 7, 2026: the cited page had not changed since it was quoted.
Full Breakdown
Sec. 17-18, in Chapter 17's Article II, sets Portland's construction-noise curfew. m. on a Saturday, Sunday or legal holiday, regardless of the seasonal decibel window. Subsection (b) defines 'construction activities' broadly to include operating power or heavy equipment for road, street or bridge work; installing or repairing utility lines, pipes, wires or cables; excavating for foundations or landscaping in building construction; and renovating, repairing, remodeling or demolishing the exterior or foundation of any building. Subsection (c) carves out two exceptions: emergency repair work needed to restore normal utility service, and construction the Public Works Authority or the Office of Building Inspections determines is of a unique, non-recurring character that cannot reasonably be completed during permitted hours, provided the contractor gives advance notice of the timing and scope in a manner the Public Works Authority approves. 3A and was last amended by Ord. No. 59-05/06 on October 17, 2005.
Violations & Fines
Running noise-generating construction above the 50-decibel threshold in an R-zone during the barred evening-to-morning window, or starting any construction before 8:00 a.m. on a Saturday, Sunday or legal holiday, violates Sec. 17-18(a) unless the emergency-repair or unique-activity exception in Sec. 17-18(c) applies with the required advance notice to the Public Works Authority.
Frequently Asked Questions
What time can construction noise start in Portland residential zones?
Can contractors work on Saturdays in Portland?
Are emergency repairs exempt from the construction noise hours?
Sources & Official References
Other rules in Portland
How Portland compares: Cities with the Strictest Construction Hours·Compare Portland to another location·View the Maine noise ordinances overview
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