Backwater Valve Installation
Is your home prone to flooding? Consider installing a backwater valve. It reduces the risk of wastewater backing up into your basement or other low-lying areas during storms. By blocking sewer backups, you avoid costly water damage, unpleasant cleanup, and potential health hazards.
Backwater valves protect your home from sewer backups. It prevents wastewater from flowing back into your pipes during heavy rainfall or sewer line overloads.



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Why install Backwater Valve?
A backwater valve has a flap that allows wastewater to flow out, but it closes if water tries to flow back in. This action keeps sewage from re-entering your property.
Installing a backwater valve reduces your chance of a sewer backup by up to 70%, according to plumbing industry data. Many cities also offer rebates for installation, recognizing the value of these systems in flood prevention.
For new homeowners, installing a backwater valve is a proactive step in protecting your property. If you’ve experienced sewer backups before, adding a backwater valve can provide peace of mind and prevent future issues.
As licensed plumber, will assess your home’s plumbing to find the best installation point. The installation process requires digging into the main sewer line, often in the basement, but it’s a single-day project for most properties.
Think about your property’s long-term protection. Prevent damage before it happens.

Backwater Valve installation FAQs
A backwater valve is a device installed in your main sewer line that prevents sewage from flowing back into your home. It has a flap that allows wastewater to exit but closes if water tries to flow back in.
The valve is typically installed in the main sewer line, usually in the basement. A licensed plumber will locate the best place in your plumbing system to install it.
Most installations are completed within a day. The plumber will dig into your main sewer line, install the valve, and restore the area, keeping disruption to a minimum.
Yes, periodic maintenance is essential to ensure the valve operates correctly. Checking it every few months and keeping it clear of debris will help it function effectively.
Many municipalities offer rebates to help cover the cost of installation, as backwater valves reduce the risk of sewer backups and flood damage. Check with your local government for available programs.
No, a backwater valve only prevents sewage from backing up through the main sewer line. It won’t protect against other types of flooding, such as groundwater or stormwater infiltration.
Ottawa areas
we serve
- Rockcliffe Park
- New Edinburgh
- Island Park
- The Glebe
- Westboro
- Downtown Ottawa
- Alta Vista
- Old Ottawa South
- Kanata
- Stittsville
- Nepean
Plumbing costs
Drain Service Rates: | |
Unclogging Hand Sinks in Residential Locations | $220.00 |
Unclogging Main Drains Through Accessible Cleanouts | $350.00 |
Unclogging Main Drains Through Toilet Flange with Toilet Reinstallation | $450.00 |
Using Snakes to Unclog Kitchen Sinks | $350.00 |
Unclogging Showers with Snakes | $220.00 |
Using a Snake to Unclog a Tub | $220.00 |
Main drain camera inspection | $350.00 |
Leak/Source of smell Investigation | $180.00 |
Plumbing Related Service Calls (Labor Only) per hour | $80.00 |
Back-Up Pump with a battery parts and labour | $1,850.00 |
Replace Sump Pump (for labour only) | $350.00 |
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