Basement Drainage Correction in Toronto & GTA
Fix the Causes, Not Just the Symptoms
Sometimes, basement water problems don’t come from a crack or broken pipe, they come from poor drainage around or under the home. At DrainPro Plumbing & Drain Services Inc., we specialize in diagnosing and correcting drainage problems that lead to moisture, mold, and recurring basement leaks. Serving Toronto, Mississauga, Brampton, Vaughan, Richmond Hill, Markham, Pickering, Scarborough, Etobicoke, and all of the GTA, we’ll get to the root of the problem and fix it properly.
24/7 Emergency Service
Fully Licensed & Insured
Guaranteed Satisfaction
Rated 5 Stars by Homeowners
What Is Basement Drainage Correction?
Drainage correction means identifying and resolving the flow of water around your home from grading and gutter issues to blocked exterior drains and undersized sump systems.
A true waterproofing system only works when the drainage is functioning properly. That’s why DrainPro always starts by fixing what’s not flowing.
⚠️ Signs You Have Drainage Issues
Water pooling against foundation walls
Basement leaks with no visible foundation crack
Sump pit fills constantly even in dry weather
Soggy lawn, spongy soil, or standing water after rain
Overflowing gutters or missing downspouts
Leaks from window wells or cold rooms
Our Drainage Correction Services
Downspout Redirection - We reroute downspouts away from your foundation with extensions or underground piping.
Regrading & Slope Correction - We re-shape soil to ensure water flows away from the home, not toward it.
French Drains & Trench Drains - We install shallow or deep exterior drains to catch surface water and redirect it properly.
Exterior & Surface Drain Clearing - We install or repair drainage under window wells to prevent flooding or pooling.
Window Well Drainage - We flush, repair, or replace clogged exterior drains, especially near patios or walkways.
Sump Pump Optimization - We correct sump discharge lines and install overflow protection where needed.
Our Drainage Correction Process
1. Property Inspection
We identify where water is entering and explain the best solution clearly, with no pressure.
4. Clean, Proper Installation
A gravel bed and perforated pipe are placed to catch and redirect water to the sump.
2. Problem Identification
Floors and nearby areas are covered. We keep dust and mess contained from start to finish.
5. Final Test & Cleanup
We install a barrier on the wall to block moisture and guide it down into the drain.
3. System Design
A narrow strip of floor is removed along the wall to reach the base of the foundation.
6. Final Walkthrough
Everything is cleaned and reviewed. We explain how your system works and provide your warranty.
Every step is done by our in-house team of licensed specialists.
Why Choose DrainPro?
At DrainPro, we bring a reputation built on trust, efficiency, and long-lasting results.
Here’s why homeowners across Toronto, Mississauga, Vaughan, and the entire GTA rely on our drain expertise
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Customer Reviews
Kyle F. – Toronto, ON
"We’re in a semi-detached in downtown Toronto with no way to excavate. DrainPro installed a full interior drainage system and new sump pump in our basement. They were quick, respectful of the home, and explained every step. One of the better experiences we’ve had with contractors."
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What is a backwater valve and how does it work?A backwater valve is a plumbing device installed on your main sewer line to prevent sewage from backing up into your home. During heavy rainfall or sewer overload, the valve flap automatically closes to stop water and sewage from flowing backward into your basement. It’s one of the most effective ways to prevent basement flooding in Toronto and the GTA.
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Do I really need a backwater valve in Toronto?Yes if your home has a basement and is connected to the city’s sewer system, you are at risk during heavy storms. The City of Toronto recommends backwater valves to protect your home from sewage backups and even offers a subsidy program to help cover installation costs.
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How much does a backwater valve installation cost?The cost typically ranges from $1,500 to $3,500, depending on your home's plumbing system, accessibility, and permit requirements. The City of Toronto’s Basement Flooding Protection Subsidy Program offers homeowners up to $1,250 back to help offset the cost.
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How long does the installation take?In most cases, backwater valve installation takes one day. Our DrainPro team handles everything from initial inspection to concrete restoration, ensuring a smooth and efficient process with minimal disruption to your home.
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Is a permit required for backwater valve installation?Yes most municipalities, including Toronto, require a plumbing permit before installation. Don’t worry DrainPro takes care of the entire permit process for you, ensuring everything is up to code and subsidy-compliant.
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How do I maintain a backwater valve?You should inspect your backwater valve every 6 months. Open the clear cover and check for debris, wear on the rubber seal, and proper flap movement. DrainPro will show you how to do this during installation and offers maintenance services if needed.
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Will a backwater valve stop all types of basement flooding?A backwater valve protects against sewage backups from city sewer lines. To protect against groundwater or stormwater flooding, you may also need a sump pump or weeping tile system. We offer full basement waterproofing solutions ask us about your options.
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Can I get help applying for the city rebate program?Absolutely. Our team will guide you through the City Basement Flooding Protection Subsidy Program and assist with all necessary paperwork to help you get your rebate quickly and easily.
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How do I book a free quote for backwater valve installation?You can call us at (647) 867-9779 or fill out our online quote form. One of our licensed technicians will visit your home, inspect your system, and provide a detailed estimate with no pressure.
Water won’t wait. If your property has poor drainage, let DrainPro fix it before it damages your basement.