Mandatory Downspout Disconnection (2022)

Skip to contentMandatory Downspout Disconnection (1)

It is mandatory for all property owners in Toronto to ensure their downspouts are disconnected from the City’s sewer system.

During heavy rain, the sewers can become overloaded, which can increase the risk of basement flooding and release of polluted rainwater into local waterways.

By disconnecting downspouts and directing stormwater onto the property instead, it can minimize the risk of sewer overloads.

What You Need to Consider Before Disconnecting

(Video) Downspout disconnection - It is the Law !

It’s important that the work is done safely, properly and in accordance with theProperty Standards Bylaw (see §629-20. Roofs and roof structures).

Before starting, consider these important guidelines:

  • Water should flow away from a building’s foundation.
  • Ensure flow of water will not cause damage to your neighbour’s property, oronto a driveway or sidewalk.
  • Use a splash pad to help direct the flow of water and protect against erosion.
  • Avoid creating a tripping hazard; do not add extensions across a walk-way or in front of a gate or doorway.
  • Water flow may freeze in the winter; do not create dangerous conditions.
  • Consider using arain barrelto capture and store rainwater.
    • During winter months, remove the rain barrel to avoid freezing and breaking.
    • After removing the rain barrel, add an extension to the downspout to ensure proper drainage away from your home.
  • Consider extending downspouts under a deck, patio or to a grassed or garden area.
  • Consider creating a rain garden or removing hard surfaces surfaces, such as concrete pathways or patios to allow water to infiltrate.
  • Once you’ve disconnected, cap the sewer connection − the open pipe remaining when the downspout is removed. This prevents water and debris from going in and stops animals from falling into the opening.

Proper maintenance of your eavestroughs and downspouts is important to ensure they are working properly.

  • Clean eavestroughs at least twice a year, and check all elbows and outlets for debris to prevent clogging.
  • Fix any leaks and repair any low spots or sagging areas along your eavestroughs. Lastly, make sure all parts are securely fastened.

Once you are ready to disconnect, you can decide to do it yourself or hire a contractor. More information is provided below for information on both methods.

Seniors and persons with a disability may qualify for financial assistance to help with downspout disconnection.

Disconnecting Downspouts at Home

When redirecting the rainwater from the disconnected downspout, water should flow onto the ground or run off safely. It is important to ensure that:

  1. Water flows away from your foundation walls.
  2. Water does not negatively impact your neighbour’s property.
  3. Water does not flow directly onto a City sidewalk.

What you need to disconnect

ToolsFasteners/PlugsAdditional Materials
  • Hacksaw
  • Tape measure
  • Hammer
  • Screwdrivers
  • Drill
  • Pliers
  • Metal file
  • Sheet metal screws
  • Wingnut test plug and concrete (optional)
  • Rubber or PVC cap
  • Downspout elbow
  • Splash pads
  • Ladder
  • Downspout pipe extension
  • Brackets to secure the downspout to the building
  • Protective equipment (gloves, safety glasses, etc.)

Steps to disconnect

  1. Measure 23 cm (9 in.) from where the downspout enters the sewer connection.
  2. Cut the downspout with a fine blade hacksaw. Make sure to remove the cut piece and do not drop it down the drain. Use a metal file to remove the rough edge of the downspout.
  3. Be sure to cap the sewer standpipe — the open pipe remaining when the downspout is disconnected. This prevents water from going in. It also stops animals from falling into the opening, getting trapped, and having to be rescued. You can use a simple rubber cap secured by a hose clamp, PVC cap or a wingnut test plug and concrete if available cap sizes don’t fit.Mandatory Downspout Disconnection (2)Mandatory Downspout Disconnection (3)
  4. Insert the downspout into the elbow (if you put the elbow into the downspout, it will leak). You may need to crimp the end of the downspout with a pair of pliers to get a good fit.Mandatory Downspout Disconnection (4)
  5. Attach a downspout pipe extension to carry water away from the house and foundation. You can use a hacksaw to cut the extension to the desired length. Be sure to insert the elbow into the extension to prevent leaks. Drill a hole on either side and secure the elbow and extension with sheet metal screws. To prevent erosion where the water drains, you can place a splash pad at the end of the downspout extension.


The City cannot guarantee the accuracy or completeness of the information or its application to any particular property. Readers should where possible verify the information before acting on it. Where appropriate, professional advice and service should be sought from a knowledgeable and licensed contractor or civil engineer.

(Video) Mandatory Downsprout Disconnection In The City Of Toronto

While we endeavour to provide accurate information, it is provided strictly “as is” and the City makes no representations or warranties as to the accuracy, reliability, completeness, currency, or suitability of the information provided. Readers relying on this information and this web site do so entirely at their own risk. In no event will the City of Toronto be liable to you or anyone else for any decision made or action taken by you or anyone else in reliance on this information. The City does not accept and specifically disclaims any and all liability for any injury, loss or damage whatsoever incurred as a result of the use of, reliance on, the information provided by the City and in no event will the City, its Councillors, officers, directors, employees or contractors be liable to you or to any third party for any direct, indirect, incidental, consequential, special or exemplary damages or lost profit, including any property damage or loss or personal injury, associated with, resulting from or arising out of any use or misuse of this information.

Hiring a Contractor For Downspout Disconnection

Rather than doing it yourself, you may prefer to seek the professional advice and services of a City-licensed contractor to perform the disconnection. If you choose to hire a contractor, be consumer-wise. To ensure the job is completed properly:

  • Get at least three quotes.
  • Get references from other customers.
  • Enter into a written contract.
  • Ensure that all work to be done (including site cleanup) is clearly stated in the contract.
  • Ensure that the full price of the job is in the contract.
  • Agree with your contractor on a payment schedule and include the schedule in the contract.
  • Be aware of any contractors who:
    • Quote prices before seeing the job.
    • Give you a “special price.”
    • Offer discounts if they can “use your home to advertise their services.”

Learn more from theBetter Business BureauMandatory Downspout Disconnection (5).

Exemption Application

There are a few instances where disconnecting your downspout is either hazardous or not technically feasible.

Before applying for an exemption, property owners should make every effort to disconnect their downspouts from the City’s sewer system by:

(Video) Toronto Downspout Disconnect Instructional Video

  • Relocating one or more downspouts.
  • Re-grading eavestroughs.
  • Correcting the slope/grading on property.

Apply for an Exemption

Property owner(s) are required to complete and submit theMandatory Downspout Disconnection Exemption Application,which includes submission of a property sketch. A sample applicationand sample property sketchare provided for assistance.

Several factors will be considered in the review of an exemption application. They include, but are not limited to:

  • Options for the relocation of one or more downspouts.
  • Ability to mitigate hazards and/or correct grading.
  • Compliance with other municipal by-laws and/or statutory regulations.

Applicants will be notified in writing of the decision to grant or deny an exemption for each connected downspout.

The General Manager reserves the right to revoke an exemption previously issued where any information provided is misleading or inaccurate, or when property and/or building conditions change. For example, the property’s landscaping is significantly modified or the roof is rebuilt.

For more information on the Mandatory Downspout Disconnection Program, contact 311.

Submit Application

Submit your completed application to:

City of Toronto
Mandatory Downspout Disconnection Program
PO Box 15266
Toronto, ON M7Y 2W1

Mandatory Downspout Disconnection Financial Assistance

The Mandatory Downspout Disconnection Financial Assistance program offers a reimbursement of the costs of labour and materials for performing downspout disconnection work, up to a maximum of $500, if you are an eligible low-income senior or a low-income person with a disability.

(Video) Downspout Disconnection Program

To qualify for the Mandatory Downspout Disconnection Financial Assistance program, you must:

  • Own a residential property within the City of Toronto; and
  • Have a combined household income of $50,000 or less; and
  • Be 65 years of age or older or be 60-64 years of age and be receiving a Guaranteed Income Supplement under the Old Age Security Act; if widowed, be receiving the Spouse’s Allowance under the Old Age Security Act; or be 50 years of age or older and be receiving either a pension or a pension annuity resulting from a pension plan under the Income Tax Act (Canada) or
  • Be a person with a disability and receiving disability benefits.

Required Documentation

A completed and signedapplicationwith the following documents attached must be submitted within one year after the completion of the disconnection work. Applications must include:

  • Dated and unaltered original invoice(s) or receipt(s) fully itemizing the materials and work supplied and performed in respect to the disconnection and the cost.
  • Before and after photographs of the disconnected downspout(s).
  • Copies of the most recent Income Tax Notice of Assessment(s) from Canada Revenue agency for all persons occupying the property for which the application for financial assistance is made.


In addition to the required documentation:

  • A copy of your Old Age Security T4A (if applicable), Guaranteed Income Supplement (GIS) (if applicable) and/or Spousal Allowance T4A (if applicable).
  • Proof of receipt of a registered pension or registered annuity under the Income Tax Act (Canada) (if applicable), if you are 50 years of age or older.

Persons with a disability

In addition to the required documentation:

  • A copy of disability benefit income from one or more of the following:
    • Ontario Disability Support Program (ODSP)
    • Canada Pension Plan
    • Workplace Safety and Insurance Board (WSIB)
    • Employment Insurance Sickness Benefit
    • Motor Vehicle Accident Insurance
    • Private Disability Insurance
    • Employer Disability Insurance
    • Disability programs provided by professional associations

Applicants are advised to block out the Social Insurance Number of all documents submitted.

For more information on the Mandatory Downspout Disconnection Program, contact 311.

Submit Application

Submit your completed application to:

City of Toronto
Mandatory Downspout Disconnection Program
PO Box 15266
Toronto ON M7Y 2W1

(Video) GTA Downspout Disconnection with PMT Home Services


Mandatory Downspout Disconnection? ›

It is mandatory for all property owners in Toronto to ensure their downspouts are disconnected from the City's sewer system. During heavy rain, the sewers can become overloaded, which can increase the risk of basement flooding and release of polluted rainwater into local waterways.

What is a disconnected downspout? ›

Downspout disconnection is the process of disconnecting the downspout from a pipe or the paved area. Water is then redirected to flow into a rain barrel or to a lawn or garden where it can soak into the ground. Redirecting downspouts to a landscaped area is a great way to help reduce runoff from a property.

How long should a downspout extension be? ›

On sloped land with clay-rich soil, downspouts should extend at least three feet out from the foundation. On flat land, the Association recommends 10 feet, unless the soil is very sandy, in which case the extender may need to be much longer.

Can you connect downspout to drain? ›

How to connect your downspout to your drain pipe - YouTube

How do you cap downspouts? ›

Cap the standpipe so water cannot continue to enter the storm drain through this entrance. Attach the downspout elbow to the downspout using pliers to ensure a tight fit. Secure the elbow with sheet metal screws. Attach the downspout extension and secure with sheet metal screws.

How much does downspout disconnection cost? ›

The cost to disconnect varies from property to property and can depend on the number of downspouts and whether redirecting is required. A simple downspout disconnect can cost as little as $12 to $25.

Is downspout necessary? ›

Downspouts can be a very important tool for preventing water damage. A properly working drainage system is essential to avoiding moisture and corrosion in your home, which is why you need downspouts and downspout extensions.

Are downspout extensions necessary? ›

Since the downspouts are so close to the house, the gutter extensions are essential. If you choose not to have them, mold, mildew, and structural issues in the foundation can occur. There can also be washouts in the soil, too much water that accumulates on the roof, and also basement flooding.

How far from house should downspouts drain? ›

A good rule of thumb: One downspout should not drain more than 35 feet of gutter. The gutters must be clean to prevent clogging. The downspouts need to be extended away from the home a minimum of four feet, with six feet being preferred.

How high should a downspout be off the ground? ›

Downspout drains are usually buried from 12 to 48 inches below the ground to better conceal the drainage system. This also serves to avoid damage from rain and snow, and to leave the yard free of obstructions. While this is a common approach that's favored by many homeowners, there are things to consider.

Where should downspouts drain? ›

Therefore, gutters should drain properly. Gutters should drain water to at least 4-6 feet but preferably 10 feet away from the house. Ensure you connect the gutter securely to the eave of the roof. Additionally, each downspout should drain a maximum of 35 feet of gutter.

Where do downspouts drain to? ›

Some homes connect their gutter downspouts to drains that go underground. We call these gutter drains “underground drains“. The purpose of the underground drain is to re-direct the water away from the home, usually to the street or the sidewalk. Sometimes they even connect directly to the sewer line underground.

Is burying downspouts a good idea? ›

Underground downspouts are considered the more effective alternative to above-ground downspouts because they're easy to tuck out of the way. If you have a large lawn or just want to preserve the aesthetic of your landscaping, underground downspouts will keep your home safe without turning into an eyesore.

Can you cap off a gutter downspout? ›

How to fix a gutter downspout cap without concrete - YouTube

What is a gutter plug? ›

Fits into your downpipes in household gutters. The fire plug stops water from draining out of the gutters, filling the gutters with water. Filling the gutters with water means that there is much higher likelihood that any embers that fall into the gutters are going to be extinguished.

Where do my downspouts go? ›

Building contractors and plumbers agree that downspouts should go into the ground to tuck them away and maintain a property's aesthetic. Also, underground downspouts are more effective because they can pair with French drains and sump pumps to throw water far away from the building.


1. Mandatory Toronto Downspout ByLaw
2. Downspout Disconnection
(Jeff Birney)
3. PMT Home Services and a Zip HInge - The Best Downspout Disconnection Solution!
(PMT Home Services)
4. 5. Divert your downspouts
5. Downspout disconnection and Eavestrough repair service for Toronto,Mississauga and Scarborough
(Toronto Eaves)
6. How-To Disconnect your Downspout in the GTA (Toronto) with a Zip Hinge Solution
(Zip Hinge Canada)

Top Articles

Latest Posts

Article information

Author: Mr. See Jast

Last Updated: 12/03/2022

Views: 6571

Rating: 4.4 / 5 (55 voted)

Reviews: 94% of readers found this page helpful

Author information

Name: Mr. See Jast

Birthday: 1999-07-30

Address: 8409 Megan Mountain, New Mathew, MT 44997-8193

Phone: +5023589614038

Job: Chief Executive

Hobby: Leather crafting, Flag Football, Candle making, Flying, Poi, Gunsmithing, Swimming

Introduction: My name is Mr. See Jast, I am a open, jolly, gorgeous, courageous, inexpensive, friendly, homely person who loves writing and wants to share my knowledge and understanding with you.