Wauwatosa, WI Noise from Specific Sources: HVAC & Mechanical Noise (2026)
Key Facts
- Governing section
- Section 7.46.100, Chapter 7.46 Noise
- Covered equipment
- Any air moving, conditioning or cooling equipment
- Standard
- Disturbs comfort, quiet or repose nearby
- Required remedy
- Reasonable sound-deadening or muffling devices
- Origin
- Prior code § 9.02(9); Ord. 72-23, 1972
Summary
Wauwatosa Municipal Code Section 7.46.100 bars operating or maintaining any air moving, conditioning or cooling equipment so it causes unusual or excessive noise disturbing the comfort, quiet or repose of nearby residents, and requires the owner to use all reasonable sound-deadening and muffling devices and practices to keep it compliant.
No person shall cause, suffer or allow any air moving, conditioning or cooling equipment of any nature or kind to be so operated or maintained as to cause any unusual or excessive noise which disturbs the comfort, quiet or repose of persons in the vicinity thereof, and, to this end, all available and reasonable sound deadening and muffling devices and practices shall be employed.
Full Breakdown
02(9), carried forward by Ord. 72-23 in 1972 and Ord. O-03-09 in 2003. It applies to any air moving, conditioning or cooling equipment of any nature or kind, so it reaches central air conditioners, rooftop commercial condensers, ventilation fans and similar mechanical equipment attached to a building. The standard is a disturbance test rather than a fixed decibel limit: equipment violates the section if it is operated or maintained so as to cause unusual or excessive noise disturbing the comfort, quiet or repose of persons in the vicinity.
The section affirmatively requires the equipment operator to employ all available and reasonable sound deadening and muffling devices and practices, which the city's police department and code enforcement staff use as the compliance benchmark when investigating a noise complaint about a compressor or condenser unit. 46. No time-of-day cutoff or decibel ceiling is printed for air conditioning equipment specifically, unlike the chapter's lawnmower and refuse-collection sections, which do carry set night hours.
Violations & Fines
Section 7.46.150 routes any Chapter 7.46 violation without its own penalty to Section 1.12.010: a forfeiture of one to five thousand dollars for a first offense, at least twenty-five dollars for a repeat conviction within the same ordinance, and each day of continued noncompliant equipment operation counted as a separate offense.
Frequently Asked Questions
Does Wauwatosa set a decibel limit for air conditioner noise?
What must a homeowner do if a neighbor's AC unit is too loud?
Are commercial rooftop condensers covered too?
Sources & Official References
Other rules in Wauwatosa
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