Save Your Home from Costly Sewer Backups
Professional Backwater Valve Installation by Saskatoon's Trusted Plumbers
What Happens During a Sewer Backflow Event?
Most homeowners assume wastewater only moves in one direction—away from the home. Under normal conditions, that’s true.
However, during periods of excessive demand on the municipal sewer network, pressure can build inside the sewer system. When this happens, wastewater seeks the path of least resistance, which may include private sewer connections.
Without a backwater valve, that pressure can force wastewater into lower-level plumbing fixtures such as:
- Basement floor drains
- Basement toilets
- Basement showers
- Laundry drains
- Utility sinks
A backwater valve acts as a protective barrier that automatically closes when reverse flow is detected.
Why More Saskatoon Homeowners Are Installing Backwater Valves
Many homeowners only learn about backwater valves after experiencing a costly sewer backup. Installing one before a problem occurs can help reduce the likelihood of future damage.
Homeowners commonly install backwater valves when:
- Renovating or finishing a basement
- Purchasing an older home
- Replacing portions of a sewer line
- Experiencing increased stormwater activity in their area
- Looking to improve flood protection measures
- Completing major plumbing upgrades
A backwater valve is a proactive investment in protecting your property.
How a Backwater Valve Works
A backwater valve contains a movable gate or flap located inside the home’s sewer piping.
When wastewater leaves your home, the gate remains open and allows normal drainage.
If wastewater attempts to flow in the opposite direction, the gate automatically closes and blocks the incoming flow.
Once pressure within the municipal sewer system returns to normal, the valve reopens and normal drainage resumes.
The process happens automatically without requiring homeowner intervention.
Choosing the Right Backwater Valve
Not every home requires the same type of protection. Our plumbers evaluate several factors before recommending a solution, including:
Sewer Line Configuration
The layout of your existing drainage system affects valve selection and placement.
Basement Plumbing Fixtures
Homes with multiple basement fixtures may require a different installation approach than homes with only a floor drain.
Accessibility
The location of the sewer line impacts installation methods and future maintenance access.
Future Renovation Plans
If you are planning basement development, future plumbing additions should be considered before installation.
Our goal is to recommend a solution that fits both your home and long-term needs.
Professional Installation Matters
Backwater valves must be installed in the correct location and orientation to function properly.
Improper installation can result in:
- Restricted drainage
- Maintenance difficulties
- Reduced effectiveness during backup events
- Premature valve failure
Our technicians carefully assess the existing plumbing system and ensure all work is completed according to applicable plumbing standards.
Backwater Valve Access and Inspection
A backwater valve should remain accessible after installation.
Modern installations typically include an access cover that allows the valve to be inspected and serviced when required.
Routine inspections can help identify:
- Debris accumulation
- Wear on moving components
- Improper operation
- Obstructions that may affect performance
Maintaining accessibility helps ensure the valve remains ready when needed.
Older Homes and Backwater Valve Upgrades
Many older Saskatoon homes were constructed before backwater valves became common. Modern installations typically include an access cover that allows the valve to be inspected and serviced when required.
If your home was built decades ago, sewer backup protection may be limited or nonexistent.
During renovations or plumbing upgrades, many homeowners choose to add a backwater valve to improve protection without requiring major changes throughout the entire plumbing system.
A site assessment can determine whether installation is feasible and what modifications may be required.
Why Choose Perfection Plumbing & Drain Cleaning Ltd.
For decades, homeowners in Saskatoon have trusted Perfection Plumbing & Drain Cleaning Ltd. for reliable plumbing solutions and honest recommendations.
We focus on:
- Professional workmanship
- Clear communication
- Quality materials
- Long-term reliability
- Respect for your home
- Upfront pricing
Our team takes the time to explain your options so you can make an informed decision about protecting your property.
Frequently Asked Questions
Will a backwater valve affect normal drainage?
No. When operating correctly, wastewater exits the home normally. The valve only closes when reverse flow is detected.
Can a backwater valve be added to an existing home?
Yes. Many installations are completed in existing homes as part of flood protection improvements.
How often should a backwater valve be inspected?
Regular inspections are recommended to ensure the valve remains clean and operates properly.
Is a backwater valve visible after installation?
Most installations include an accessible cover that allows future inspection and maintenance while keeping the valve concealed.
Can a backwater valve help protect a finished basement?
Yes. One of the primary reasons homeowners install backwater valves is to help reduce the risk of wastewater entering finished basement areas.

