Rainwater Harvesting System Rebate

Get a rebate from the City of Guelph when you install a rainwater harvesting system.

Get a rebate from the City of Guelph when you install a rainwater harvesting system.

Using rainwater to flush your toilets, do your laundry or water your lawn or garden saves you money, is better for your plants, helps conserve Guelph’s precious groundwater and reduces demands on municipal infrastructure. 

After we receive your application and verify that your system is approved, you will received a rebate within 12 weeks. Limit one rebate per household.

Seasonal rainwater harvesting system rebate up to $2000

During spring and summer, about half your household water is used outdoors for gardening, lawn watering and car washing.

Install an approved seasonal outdoor rainwater harvesting tank and receive a one–time rebate of $0.50/litre of tank storage (to a maximum of $2,000).

To qualify for a rebate a single-unit seasonal rainwater harvesting system must be at least 500 litres, designed and manufactured for the direct purpose of rainwater collection, and include a secure lid (child-proof), leaf screen, and—for above ground installation—must be algae and ultraviolet (UV) resistant.

Rain barrels, repurposed or homemade tanks do not qualify for the rebate.

A seasonal outdoor rainwater harvesting system is connected typically to a downspout and includes:

  • a leaf screen
  • a storage tank that holds at least 500 litres
  • a hose
  • a small pump

You can purchase system package, or ask an engineer to design a system for you. Some systems may require assistance from a contractor or engineer familiar with rainwater harvesting systems and/or a qualified plumbing contractor.

If your system will be connected in any way to your home’s plumbing (hose bib or tap) you will need a building permit.

Apply for a seasonal rainwater system rebate

To ensure the seasonal tank you purchase and install qualifies for the rebate, please refer to the following:

You must apply for the rebate within a year of purchasing/installing the system.

Get a $2000 rebate when you install an all–season rainwater system

Using rainwater all year round can cut your water bill in half! An all–season indoor/outdoor rainwater harvesting system collect, filter and store rain and melted snow so you can use to flush your toilets, do you laundry and water your lawn and garden.

You will need to hire a rainwater harvesting contractor, engineer and/or qualified plumbing contractor to be eligible for a rebate.

All–season indoor/outdoor systems require a building permit, must be designed and built in accordance with the Ontario Building Code, and the City of Guelph’s home rainwater harvesting system design standards.

This diagram shows a house with a rainwater harvesting system. A cross-sectional view of the house shows the interior of the top and main floors, and the basement. Rain is running off the roof into the eaves and downspout, then to a pipe connected to a storage tank buried next to the house. In the diagram, the tank is connected to the household plumbing via pipes connected to a toilet, a washing machine, and an outdoor irrigation system.

To understand design and construction requirements please read:

Apply for an all-season indoor/outdoor rainwater system rebate

Rebates for approved all-season indoor/outdoor rainwater harvesting systems will be honoured for purchases and installations completed on or after January 1, 2010.

Related resources

Water treated by a rainwater harvesting system does not meet the provincial drinking water quality standards and should not be consumed under any circumstance.

List of system providers is provided as a courtesy. The City of Guelph: does not endorse any retailers, products, services or prices; has not confirmed that these retailers carry products that qualify for rebate through the program; has not confirmed the location of these retailers or verified that these retailers would provide their products or services in Guelph; has not confirmed the quality of the products or services of these retailers; reserves the right to amend or remove this list at any time, without notice.

For more information

519-822-1260 extension 2633