Toronto’s Noise Bylaw for Homeowners: Renovation Hours, AC Units, Parties, and How a Complaint Actually Works

A Toronto house makes different noise in April, July and on a long weekend, and Chapter 591 has a different rule for each. Here is the year, season by season, with what the City actually does when someone calls.

I’m Arthur Zhao, a real estate broker in Toronto.

Here is a scene that plays out every spring. A homeowner is reading a contractor’s schedule for a kitchen and basement job. It looks efficient: crews in at 7:30 on Saturdays, and the Victoria Day Monday flagged as a “catch-up day”. The owner signs it because they assume hours are the contractor’s problem.

Toronto’s Noise Bylaw doesn’t only speak to whoever is holding the saw. Almost every prohibition in Chapter 591 is written as “No person shall emit or cause or permit” the sound. My reading is that this wording is broad enough to reach the person who arranged or allowed the work. Neither of those two schedule lines would survive the construction rule.

So rather than reciting the bylaw section by section, this piece walks through a year in a Toronto house: the yard-tool weeks of spring, the renovation season and its long weekends, summer’s air conditioners and backyard parties, and the noise that never takes a season off. For each, you’ll see the rule that applies and what the City does when a neighbour complains, or when you’re the one complaining. It covers the City of Toronto only, and it is a reading of the bylaw text, not legal advice for your situation.

Spring: mowers, blowers, pressure washers and the car in the driveway

The first warm weekend brings out everything with a motor. Chapter 591 calls most of it a power device: equipment not driven by muscle and used to service, maintain or repair property or lawns, “including chainsaws, lawn mowers, leaf blowers, grass trimmers, power or pressure washers, or any other similar equipment” (s. 591-1.1).

The window is set by s. 591-2.6. Sound from a power device is prohibited from 7 p.m. until 8 a.m. the next day, and until 9 a.m. on Saturdays, Sundays and statutory holidays. Put the other way, the mower can run 8 a.m. to 7 p.m. on weekdays and 9 a.m. to 7 p.m. on weekends and holidays. Notice that, unlike renovation work, yard tools are allowed on Sundays.

Where yard work turns into construction

The power-device definition expressly excludes construction equipment, and “construction” in Chapter 591 includes repair and alteration and is not limited to big projects. The construction equipment definition lists hand tools and power tools. Pressure-washing a deck sits comfortably under power devices. Pulling up rotten boards and screwing in new ones looks a lot more like repair, which follows the stricter construction schedule covered in the next season. Where a single source of sound could fall under more than one rule, s. 591-2.10 says the most restrictive one applies. My practical read is that if a spring project is borderline, you should plan it to the construction hours.

Two more spring items:

• Driveway car projects. Sound from repairing, rebuilding, modifying or testing a vehicle that is clearly audible at someone else’s property is prohibited from 9 p.m. to 7 a.m., and until 9 a.m. on Saturdays, Sundays and statutory holidays (s. 591-2.5B).
• Snow equipment is a different animal. The power-device definition carves out “equipment used to remove snow or ice”, so the 8 a.m./9 a.m. start times do not apply to a snowblower.

If you’re the one hearing it: the City’s published fine for running a power device in prohibited hours is $500 (s. 591-2.6A), and $800 for after-hours vehicle repair (s. 591-2.5B). But one early Saturday mow is exactly the kind of complaint the City says it may set aside. More on that below.

Renovation season, and the long weekends hiding inside it

Spring and summer are when most homeowners book the bigger jobs, and the construction rule is the strictest time rule in the chapter. Long weekends are where schedules most often break it.

The construction window, read carefully

Section 591-2.3 prohibits sound from construction, or from operating construction equipment, that is clearly audible:

• from 7 p.m. to 7 a.m. the next day, except until 9 a.m. on Saturdays; and
• all day on Sundays and statutory holidays.

That leaves 7 a.m. to 7 p.m. on weekdays, 9 a.m. to 7 p.m. on Saturdays, and no permitted hours on Sundays or statutory holidays. The test is “clearly audible”, not a decibel number, so a quiet tool doesn’t buy you extra time if the neighbours can plainly hear it.

Three details matter more than people expect:

• It covers DIY. The definition of construction includes erection, alteration, repair, demolition, equipment installation “and includes any work in connection with these activities”, and construction equipment includes hand tools. It is not limited to permitted projects or to contractors.
• The fine is the highest of the time-based offences. The City’s ticket fine for construction noise in a prohibited period is $900 (s. 591-2.3).
• The pandemic rule is gone. If you remember construction being allowed from 6 a.m. to 10 p.m., that was Ontario Regulation 130/20 under the City of Toronto Act, which limited the City’s power over construction noise during that window. It was revoked on October 7, 2021. Older articles and some contractors still quote it.

When the schedule genuinely can’t fit the window

Chapter 591 has a formal route: an exemption permit under s. 591-3.2. Any person may apply for an exemption from a noise prohibition by filing with the Executive Director of Municipal Licensing and Standards at least 28 calendar days before the work starts. A later application costs an extra late fee on top of the application fee. The application can require reasons, a noise mitigation plan and, for sounds that can’t feasibly be controlled, a statement from a professional engineer or acoustical consultant. The ward councillor gets written notice of the application, and permit conditions can include posting a notice at the site 7 days before the activity starts.

For a single-family renovation, that’s a lot of process. In most cases the real lesson is to set the contractor’s schedule correctly at the outset. If you do hold a permit, its conditions are enforceable in their own right: the published fine for failing to comply with an exemption permit is also $900 (s. 591-4.1B).

Summer: air conditioners, heat pumps and the backyard

Summer noise is mostly about two things running at the same time: mechanical equipment that runs for hours, and people outdoors in the evening. Chapter 591 measures both with a sound level meter, but over different time spans.

The AC unit by the side yard

Section 591-2.8D covers a “residential air conditioner or similar residential device.” Measured at an outdoor point of reception in a living area, the sound level averaged over one hour (a one-hour Leq) may not exceed 50 dB(A) from 7 a.m. to 11 p.m. or 45 dB(A) from 11 p.m. to 7 a.m. If the background sound at that spot is already above those limits, the unit may not exceed the background level. If an officer decides an outdoor measurement isn’t reasonable, the indoor limits are 45 dB(A) by day and 40 dB(A) at night (s. 591-2.8E).

Where it gets measured matters. A “point of reception” is on the other person’s premises. Examples include an outdoor spot near the building façade 1.5 metres above ground (a backyard, front yard, terrace or patio), an unenclosed balcony or rooftop terrace, or an indoor area (s. 591-1.1). So placement is the issue, not the unit’s spec sheet in isolation. A condenser tucked into a narrow side yard a few metres from a neighbour’s patio is the classic setup for a complaint.

Heat pumps are where I’d be careful. The bylaw text does not name them. The City’s Noise page does list “residential air conditioners, heat pumps, generators and fans” as examples under its “Stationary Sources & Residential Air Conditioners” heading. Whether a given heat pump is a “similar residential device” under s. 591-2.8D is a question the text leaves open, and I won’t answer it for you. The practical move is the same either way: site the outdoor unit with the neighbour’s yard in mind. The published fine for an air conditioner over the outdoor limit is $500 (s. 591-2.8D).

The backyard party: the music is the City’s, the crowd is the police’s

Speakers and instruments fall under s. 591-2.1. That section covers amplified sound and any musical instrument, amplified or not. Measured as a 10-minute Leq at an outdoor point of reception in a living area, the limit is 55 dB(A) or 70 dB(C) from 7 a.m. to 11 p.m. and 50 dB(A) or 65 dB(C) from 11 p.m. to 7 a.m. The indoor fallback is 50 dB(A)/65 dB(C) by day and 42 dB(A)/57 dB(C) at night. So there is a cap at 4 p.m. too. The 11 p.m. mark just lowers it.

Voices are a different matter. The bylaw’s definition of unreasonable noise excludes “commonplace household or workplace sounds such as sound from furniture being moved, children playing or people engaging in conversation.” The City’s Noise page is explicit that bylaw officers don’t respond to noisy parties or to people yelling, screaming or fighting. For a party where people are spilling onto the street or acting disorderly, the City points residents to the Toronto Police non-emergency line, 416-808-2222, and to 911 for emergencies.

For the host, the published fine for amplified sound over the outdoor or indoor limit is $800 (s. 591-2.1A/B).

All year: the dog, the treadmill, the alarm that won’t stop

Some noise doesn’t follow the calendar. Chapter 591 handles it with two definitions that work in every season.

Animals and the 10-minute threshold

Section 591-2.2 prohibits persistent noise made by any animal, “including barking, calling or whining.” There’s no time-of-day window. The question is duration. “Persistent noise” means heard or felt continuously for 10 minutes or more, or intermittently for a total of 10 minutes over an hour (s. 591-1.1). A dog that barks at the mail carrier for thirty seconds isn’t there. A dog that goes on and off for the whole afternoon while the owner is at work very likely is.

The City’s page adds a practical requirement: to report an animal you must provide the address where the animal lives. The published fine is $500 (s. 591-2.2).

The catch-all for everything else

Noise that none of the specific rules cover can still be caught if it is both unreasonable and persistent, at any time (s. 591-2.9). The City’s examples are ongoing building or equipment alarms and neighbours dropping gym equipment at unreasonable hours. In deciding whether noise is unreasonable, the City says it weighs the time of day (2 p.m. versus 2 a.m.), the volume, the duration, and whether quieter alternatives were available. Ordinary household sound such as furniture moving, children playing and conversation is excluded by definition. The published fine is $500 (s. 591-2.9A).

Before calling, the City asks for two steps: consider whether the noise is reasonable for city living, and try to resolve it directly with the person, or their landlord or condo management. If that fails, there is free, voluntary, confidential mediation through TNG Community Services, which the City has partnered with. It is separate from enforcement. Persistent noise not covered by an exemption goes to 311 or the online complaint form. An officer is assigned and contacts you according to the complaint’s priority. Outcomes range from education and mediation to enforcement, and if it goes to court you may be asked for a witness statement. For tenants, the separate landlord-side remedy is covered in our piece on reasonable enjoyment.

Before you sign this year’s contractor schedule

Run through these once, before work is booked, not after a neighbour calls.