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Sun Prairie, WI Noise Ordinances: Leaf Blower Rules (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Permitted hours
7 a.m. to 9 p.m. daily
Covered equipment
Lawnmowers, chainsaws, garden equipment
Exception
Equipment within property-line noise levels
Snowblower carve-out
Noncommercial use exempt entirely
Governing section
§ 8.32.020(H)
Same hours also apply to
Construction noise, § 8.32.020(G)

Summary

Lawnmowers, leaf blowers and other powered garden equipment in Sun Prairie must stay within seven a.m. to nine p.m. under Code Section 8.32.020(H), unless the equipment meets specified noise levels at the property line.

H.Operation of Certain Equipment. Lawnmowers, chainsaws, powered garden equipment, electric insect killing/repelling devices, and other nonconstruction maintenance equipment shall be operated only during the hours between seven a.m. and nine p.m. unless within the specified noise levels measured at the property line of the location at which such equipment is in use.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 71).

Full Breakdown

, unless the equipment stays within the specified noise levels measured at the property line of the location where it is used. That second clause matters for gas-powered leaf blowers in particular, since equipment that is quiet enough to meet the property-line noise standard is not confined to the daytime window the way louder equipment is. window mirrors the hours set for construction and repair noise under subsection G, so residents doing routine yard work and contractors doing construction work face the same daily clock, even though they are covered by separate subsections of the same section.

020(J)(4) carves out one specific exception: snowblowers not operated on a commercial basis are exempt from the noise chapter entirely when used to gain access to a city street, so clearing snow before or after the daytime window is not itself a violation.

Violations & Fines

Operating lawn or garden equipment, including gas leaf blowers, outside seven a.m. to nine p.m. while exceeding the property-line noise standard is enforced under the general penalty, Section 1.24.010: a first offense forfeits five to five hundred dollars plus costs, a repeat offense within a year forfeits twenty to one thousand dollars, with each day of continued use a separate offense.

Frequently Asked Questions

What time can I use a leaf blower in Sun Prairie?
Section 8.32.020(H) confines lawnmowers, powered garden equipment and similar nonconstruction maintenance equipment to the hours between seven a.m. and nine p.m., unless the specific equipment stays within the noise levels the code specifies at the property line.
Is there an exception for gas-powered lawn equipment noise levels?
Yes. Section 8.32.020(H) exempts equipment from the seven a.m. to nine p.m. window if it operates within the specified noise levels measured at the property line of where it is used, though the section does not print a separate decibel table for that equipment.
Can I run a snowblower before 7 a.m. in Sun Prairie?
Yes for noncommercial use. Section 8.32.020(J)(4) exempts snowblowers not operated on a commercial basis from the noise chapter entirely when they are used to gain access to a city street.

Sources & Official References

Other rules in Sun Prairie

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