Annual backflow testing, certification and municipality report submission for commercial and multi-unit properties in Toronto. Licensed and insured. We handle the compliance paperwork.
Backflow is the unintended reversal of water flow through a cross-connection, where water that has been used or could be contaminated flows backward into the clean municipal water supply. This can occur when there is a sudden drop in supply pressure, such as during a main break or heavy demand event.
Ontario Regulation 170/03 and City of Toronto municipal by-laws require any property with a cross-connection risk to install an approved backflow preventer and have it tested annually by a certified tester. The results must be submitted to the municipality. Mechora handles the full compliance cycle: testing, documentation and submission.
Toronto's commercial density across all districts - restaurants, hotels, hospitals, dental and medical offices, car washes and multi-unit residential buildings - makes annual backflow testing a routine compliance requirement. Toronto Water enforces cross-connection control actively.
Full backflow compliance service for Toronto commercial and multi-unit residential properties — from annual testing through to new installation and municipality documentation.
Common questions about backflow prevention compliance in Toronto and City of Toronto.
Backflow is the reverse flow of potentially contaminated water back into the municipal drinking water supply through cross-connections. Ontario Regulation 170/03 and municipal by-laws require properties with cross-connection risk to install and annually test backflow preventers in Toronto. Restaurants, medical offices, car washes, irrigation systems and multi-unit buildings are the most common affected property types.
Yes, if your property has a cross-connection risk. In City of Toronto, commercial properties including restaurants, medical and dental offices, car washes, properties with in-ground irrigation connected to municipal water, and multi-unit residential buildings (typically 6+ units) are required to have their backflow preventers tested annually by a certified tester.
Annual backflow testing for a single device typically ranges from $125 to $250 depending on device type and accessibility. Properties with multiple backflow preventers are priced per device. Mechora provides a written estimate before work begins.
Failure to maintain annual backflow certification in City of Toronto can result in a notice of non-compliance, potential fines, and in some cases disconnection from the municipal water supply until compliance is achieved. It also creates liability risk if a backflow incident occurs.
Yes. After testing, we complete the required test report, provide you with a copy, and submit documentation to the relevant City of Toronto municipality on your behalf. We also flag any failed devices and arrange repair or replacement to restore compliance quickly.
Certified testing, full documentation and City of Toronto municipality report submission. Written estimate, licensed and insured.