Basement waterproofing in Toronto starts at $1,200 and typically lands between $2,000 and $8,000, depending on the water source, foundation type, and whether you need window well drainage work at the same time. Most of the homes we quote in the GTA fall into that middle range because water rarely enters through one path only — it comes through the wall, the cove joint, or the window well, and fixing it properly means addressing the drainage outside, not just sealing the inside.
Egress Window Pros Toronto has spent 12 years working below grade across the city. We are not a general basement renovation company that "does waterproofing on the side." We are basement and window well specialists, and we price the work honestly before we start.
What Basement Waterproofing Includes
Basement waterproofing is not one product. It is a system. A proper job at a Toronto home usually includes one or more of the following:
- Interior crack injection — polyurethane or epoxy injected into foundation cracks to stop active water entry.
- Interior weeping tile and sump pump — a below-floor drainage channel that collects groundwater and pumps it out before it reaches your basement floor.
- Exterior waterproofing membrane — excavating the foundation, cleaning the wall, applying a dimple or rubberized membrane, and installing new drainage stone and weeping tile.
- Window well drainage — many "basement leaks" are actually window well failures. We retrofit drainage stone, a perforated pipe, and a proper connection to the weeping tile so water drains out instead of pooling against the window.
- Grading and downspout correction — water moves downhill. If the soil around your foundation slopes back toward the house, no interior system will fully solve the problem.
Because we specialize in egress windows and window wells, we catch issues that general waterproofing contractors miss. A window well that is too shallow, poorly drained, or missing a cover can push more water at your foundation over a single heavy storm than a cracked footer will all year.
Pricing and What Drives the Cost
Below is a realistic breakdown based on what we actually charge in Toronto. Every home is different, but these numbers reflect 400+ jobs across the GTA:
| Work | Price Range |
|---|---|
| Interior crack injection | From $1,200 |
| Interior weeping tile + sump pump | $5,000–$12,000 |
| Exterior excavation and membrane | $8,000–$20,000 |
| Window well drainage retrofit | $500–$3,000 |
| Window well replacement and repair | $500–$2,000 |
| Window well covers | $300–$900 |
The biggest cost driver is access. If we can reach a window well with a shovel, drainage work is cheap. If we need to excavate a 6-foot-deep walkout or remove a concrete patio to get at the foundation, the price climbs quickly.
Soil type matters too. Parts of Toronto sit on heavy clay that holds water like a sponge; other areas have sandy, well-draining soil. Clay requires more drainage stone and a larger weeping tile footprint. Foundation depth also matters — a side-split on a sloped lot behaves differently than a standard 8-foot-deep basement.
We will never quote a price over the phone. The free site evaluation — which we schedule within 48 hours — tells us exactly what the water is doing, and the quote reflects that. If a competitor gives you a flat number without stepping foot in the basement, question it.
The Process
1. Free site evaluation within 48 hours. We inspect the basement, the window wells, the grading, and the downspouts. We also check the egress window dimensions against Ontario Building Code 9.9.10.1 if a new egress is part of the project.
2. Written quote. You get a fixed price in writing. No time-and-materials surprises. We explain which part of the problem each line item solves.
3. The work. Depending on the scope, most jobs take one to three days. We work year-round. Toronto's freeze-thaw cycle is exactly why our drainage designs use deep, sloped pipe runs and frost-resistant stone beds — we build for January, not just for July.
4. Warranty. Every install carries a 10-year workmanship warranty. If a drainage line settles or a membrane edge fails, we come back and fix it. That is not a trick — we have been doing this for 12 years and we plan to be here for the next 12.
Why Choose Egress Window Pros Toronto
We are a family-run basement contractor, not a franchise. The person who quotes your job is the person who oversees the work.
- 400+ egress windows and window wells installed across the GTA
- 12 years of below-grade work in Toronto soil and climate
- Ontario Building Code compliant — every egress window we install meets OBC 9.9.10.1 exit requirements
- Licensed, insured, and WSIB covered
- 10-year workmanship warranty on every install
We are not the cheapest company in Toronto, and we do not try to be. We are the company that shows up, digs the hole properly, and does not make you call back in two years when the water returns. If all you want is a can of sealant and a prayer, there are cheaper options. If you want the basement dry, call us.
Get your free site evaluation and quote within 48 hours. Call (416) 555-0199 and we will walk through your basement, show you exactly where the water is coming from, and give you a straight number.
Free on-site estimate · no obligation · (416) 555-0199
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