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Basement Drainage in Ottawa
Interior perimeter drainage systems that manage water where your basement floor meets the foundation wall.
Overview
Basement Drainage: what you should know
Water often enters a basement at the joint between the floor slab and the foundation wall, especially after heavy rain or the spring thaw. An interior drainage system is designed to intercept that water before it spreads across the floor.
We start by looking at where and when water appears, then explain whether interior drainage is a sensible option for your home or whether another approach should be considered first.
Signs your basement may need a drainage assessment
- Water pooling along the base of one or more foundation walls
- Wet patches on the floor after rain or snowmelt
- Water stains or tide lines on the lower part of the walls
- Damp carpet, flooring or stored items near the perimeter
- An older drainage system you suspect is no longer working
Solutions
How interior drainage helps manage water
Perimeter trench and drain pipe
A channel is cut along the inside edge of the floor and a perforated pipe is set in clean stone to collect water at the wall base.
Wall drainage membrane
A dimpled membrane can guide water running down the wall into the drain rather than onto the floor.
Discharge to a sump
Collected water is routed to a sump pit where it can be pumped out and away from the house.
Foundation leaks and cracks
Where a drainage system is already in place, we look at whether a repair or a partial replacement is the more suitable option.
Illustrative image.
The assessment
How we assess your basement
01
Tell us what you are seeing
Where the water appears, how often, and after what kind of weather.
02
On-site look at the basement
We check the walls, floor joint, existing drains and any sump pit.
03
Explain the likely causes
We walk you through what we found and what may be contributing.
04
Tell us what you are seeing
You receive a clear recommendation, including when interior drainage may not be the right fit.
Why homeowners call us
High-performance basement drainage systems in Ottawa
01
Dedicated drainage specialists
Engineered to handle Ottawa’s heavy seasonal rainfall, high water tables, and sudden spring thaws to keep your basement permanently dry.
02
Precision water flow diagnosis
We trace hydrostatic pressure and groundwater flow around your foundation to design a custom drainage strategy before installation.
03
Clear & transparent recommendations
We explain the differences between perimeter drains, sump systems, and wall channels in plain language so you can make informed decisions.
04
Integrated interior & exterior drainage
Combining interior perimeter drain tiles, heavy-duty sump basins, and exterior weeping systems to ensure total water redirection away from your home.
FAQ
Basement Drainage questions
Can’t find your question? Call us and we’ll talk it through.
What is an interior perimeter drain?
It is a drainage pipe installed below the basement floor along the inside of the foundation walls. It collects water that reaches the floor and wall joint and directs it to a sump for removal.
Does interior drainage stop water from entering the wall?
Interior drainage manages water once it reaches the inside of the foundation. It does not seal the outside of the wall. Depending on the situation, exterior work or crack repair may also be worth discussing.
Will my whole basement floor need to be removed?
Typically only a strip of floor along the affected walls is opened. The exact extent depends on the layout and the walls involved, which we confirm during the assessment.
Can you work in a finished basement?
Finished walls and flooring along the perimeter may need to be removed to reach the work area. We discuss access and what will be affected before any work is planned.
Related services
Often considered alongside this service
Sump Pump Installation & Upgrades
Sump pump assessments covering new installations, replacements, upgrades and backup considerations.
Basement Waterproofing
Assessment-led waterproofing approaches that address how and where water is reaching your basement.
Foundation Crack Repair
Assessment of visible cracks and water entry, with repair options matched to the type of crack.
Concerned About Water in Your Basement?
Tell us what you’re seeing and we’ll arrange an assessment to identify the likely cause.
Contact Info
Phone
613-857-4746
capitalcitypave@gmail.com
Service Area
403 Bank Street Ottawa, ON K2P 1Y6
Our Promise
No deposit required. You pay only when the project is complete and you’re 100% satisfied.
Waterproofing · Drainage · Foundation Repairs. A basement solutions division of Capital City Paving & Masonry.
Basement Services
Capital City Paving & Masonry
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