Recent backup
Wastewater has risen through a floor drain or a basement toilet.
The backwater valve stops wastewater from rising into your basement when the network is overloaded. It still has to work the day you need it.
Since 2023 · CMMTQ member · RBQ licence 5835-3616
Call Plomberie JGInstalled on the drain line, the valve lets water out of the building but closes if water tries to come back. Over time, debris can jam it open or stop it from sealing.
A valve can look normal and still be faulty. Only a check shows whether it really closes.
Wastewater has risen through a floor drain or a basement toilet.
Sewer odors near the valve or unusual water noises during heavy rain.
You are buying or managing a property and nobody knows when the valve was last checked.
The price depends on how accessible the valve is and the type of device. We provide a free quote before starting. We also install and replace backwater valves: describe your building and we prepare a quote.
After a backup, before a heavy-rain season, when buying a property or if you do not know the date of the last maintenance.
We access the valve, remove debris, test closing and note its condition. You receive a written inspection report.
No. It depends on the age of the building and municipal regulations. An inspection shows whether you have one and where it is.
It depends on your policy. Check sewer backup coverage with your insurer: we cannot answer on its behalf.
It is the same subject from two angles: this page explains the valve, the inspection page describes the check and its report.
Describe the situation: we confirm the method and give you a free, detailed quote.
Backwater valve check: operation, watertightness and written report.
Camera in the line: cracks, roots, sagging and obstructions. Video report on request.
Leak, broken pipe or backup: call us, we assess the situation and the possible timeline for your address.
Scheduled checks of pumps, valves and systems to limit breakdowns.
Based in Delson, we serve all of Greater Montréal. Choose your city: