Basement Waterproofing in Ottawa
Our Services
Foundation Waterproofing and Drainage in Ottawa
TOXX Enterprises provides exterior waterproofing and drainage solutions for residential and commercial properties across Ottawa and surrounding areas.
Our work is focused on helping protect foundations and below-grade spaces from moisture, poor drainage and water-related damage.
Waterproofing and Drainage Services
- Exterior foundation waterproofing
- Drainage improvements
- Foundation excavation
- Drainage preparation around egress windows
- Moisture protection
- Window-well drainage
- Foundation repairs connected to water damage
- Site grading and water-management support
Managing Water at the Source
Water entering a basement or collecting around a foundation can be caused by several factors, including poor drainage, damaged waterproofing, grading issues or foundation deterioration. TOXX reviews the affected area and surrounding conditions before determining the most appropriate solution.
Exterior Waterproofing
Exterior waterproofing involves exposing the foundation, preparing the surface and installing the required protective system. Because TOXX also provides excavation and foundation work, the project can be managed with fewer contractors and less coordination for the property owner.
Drainage for Egress Windows
Proper drainage is an important part of an egress window installation. The window well and surrounding excavation must be prepared to manage water and help protect the new opening.
Other Services
Diagnose first, then waterproof
Every waterproofing job starts with the same question: where is the water coming from? Poor drainage, failed waterproofing, grading problems, or foundation deterioration — the fix depends on the source, and anyone who quotes a system without diagnosing it is guessing.
Our work focuses on exterior waterproofing and drainage: we expose the foundation, repair the damage, install the protective system, and manage water away from the house. Because we also do our own excavation and foundation repair, the whole job stays with one crew — no handoffs, no finger-pointing.
If an inspection shows your problem needs a different kind of solution than what we do, we’ll tell you that too. We’d rather point you in the right direction than sell you the wrong fix.
What we install
- Exterior excavation to the footing with crack repair and membrane application
- Drainage tile installation and replacement around the foundation
- Foundation crack sealing tied into the waterproofing system
- Window well drainage connected to the drainage system
- Site grading and water-management improvements
- Backfill and full site restoration
We also repair the foundation problems that cause the leaks in the first place — cracked or deteriorating walls don’t stay fixed with membrane alone. Our foundation repair crew handles both together.
Why basements leak in Ottawa
Ottawa’s Leda clay holds water against foundation walls instead of draining away, and the spring melt arrives all at once — a month’s worth of water pressure in a few weeks. Older drainage systems in mid-century homes are often crushed, clogged, or undersized for today’s storms. Freeze-thaw cycles open small cracks a little wider every year until one spring they’re letting water in.
The pattern we see most: a basement that’s been “a little damp” for years suddenly floods after a heavy rain or rapid melt. By that point the fix is bigger than it needed to be. If your basement smells musty, shows efflorescence (white mineral stains) on the walls, or has had even one leak — get it looked at before the next melt.
How a waterproofing job runs
- Free inspection. We find where the water is coming from and tell you what it actually takes to stop it.
- A clear quote. One price for the work, no vague line items. If we find something unexpected mid-job, you hear about it before we touch it.
- The work. Smaller jobs are often finished in a day or two; full exterior waterproofing typically runs several days depending on depth and access. You get a firm timeline with your quote.
- Restoration. We backfill, regrade, and clean up. Your yard won’t look like a construction site when we leave. We serve Ottawa and surrounding communities, including Kanata, Nepean, Orléans, Barrhaven, Stittsville, Manotick, and Navan.
Proper drainage around your egress window wells is part of the same work — and concrete cutting for access is handled in-house. Ready when you are: get a free estimate.
Waterproofing FAQs
Do you only do exterior waterproofing?
That’s our focus — exposing the foundation, repairing it, and installing the protective and drainage system from the outside. It’s the most complete fix for most Ottawa homes. If your situation calls for a different approach, we’ll tell you honestly at the inspection.
Will waterproofing stop my basement from flooding?
A correctly designed system will. The key word is designed: the system has to match the source of the water, the soil conditions, and the state of your foundation. That’s what the inspection is for.
How long does exterior waterproofing take?
Most jobs run a few days depending on excavation depth, access, and weather. You’ll get a firm timeline with your quote — not after we start.
How much does basement waterproofing cost in Ottawa?
It varies widely with the scope of the job — which is why we don’t do phone quotes. The inspection and estimate are free: 613-277-7070.
Can you waterproof in winter?
Exterior excavation is weather-dependent, so we schedule it around conditions. But if you’re seeing water now, call anyway — the inspection and the plan don’t wait for spring.
What does the inspection involve?
We look at where the water is showing up, check the foundation inside and out, look at grading and drainage around the house, and tell you what’s causing it and what it takes to fix. Free, no obligation.