Interior French Drain
Ideal for foundations with limited access in Quebec
With an interior French drain, fight water infiltration and protect your building — even in winter!
Increasingly popular, interior French drain installation is a more affordable yet equally effective solution compared to exterior systems! It can be installed year-round and protects your foundations even when space is limited around your home.
Do you have limited space around your foundations?
Choose the interior French drain with SOS Sous-sol!
The interior French drain —
a cost-effective solution available year-round!
Adapted to Quebec’s climate
The interior French drain can be installed year-round — even on the coldest, snowiest days of the year.
Adapted to confined spaces
The interior French drain is an ideal solution when there isn’t enough outdoor space around your building.
Hard-to-reach foundations
The interior French drain is perfect if you have balconies, patios, or landscaping that you don’t want to tear apart.
More cost-effective
Since there’s no need to excavate the entire property, the interior French drain helps you save significantly on excavation costs.
During your basement renovations
Join many construction professionals and take advantage of your renovation work to install an interior French drain.
An efficient 8-step installation process
For all your interior French drain projects, SOS Sous-sol protects your home from dust and restores your basement to its original condition.
Step 1
The basement is carefully sealed to prevent any dust from spreading to other areas of the home.
Step 2
We cut through the concrete to dig a trench about 16 inches deep along the foundation walls, down to the footing.
Step 3
A geotextile membrane is installed at the bottom of the trench to ensure proper filtration and drain stability.
Step 4
We install a high-quality French drain designed to optimize water drainage.
Steps 5
We connect the interior French drain to the sump pit or another drainage system.
Steps 6
We seal cracks from the inside using injection, an effective and long-lasting method.
Step 7
A dimpled membrane is applied to the foundation wall to allow ventilation and direct moisture toward the drain.
Step 8
We cover the pipes with clean, uniform crushed stone to ensure efficient and long-lasting drainage.
Step 9
We apply hand-troweled concrete, expertly finished by our team for an impeccable result.
Call on SOS Sous-sol for your interior French drain installation.
The SOS Sous-sol team will assess your foundation and environment to recommend the best French drain system for your home.
Equipped with cutting-edge technology and backed by proven expertise, SOS Sous-sol is the company you can trust to protect your foundation and basement from water infiltration and humidity. And once the work is complete, your basement will be restored to its original condition!
Why Choose SOS Sous-sol?
Recommended
by CAA-Quebec
Accredited
by APCHQ
Certified specialists in drainage and foundations
100+ five-star Google reviews and a transparent process
Trusted by major insurance companies
Fast, turnkey, and personalized service
International training and expertise
Ask for a free quote!
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FAQ about Interior French Drain
When should you install an interior French drain?
Installing an interior French drain is recommended when water seeps into the basement, moisture appears on the walls, or the exterior drain is inaccessible or ineffective. It’s a long-lasting solution to dry out your basement without the need for exterior excavation.
What are the benefits of an interior French drain?
This system protects the foundation from moisture, prevents mold growth, and increases the value of your property. In addition, it can be installed without excavating around the house, reducing both costs and project timelines.
How long does it take to install an interior French drain?
The duration of the work depends on the size of the basement and the condition of the foundation, but a full installation usually takes 2 to 5 days. Our team ensures minimal dust and leaves the area clean once the work is complete.
Does an interior French drain require maintenance?
Yes, periodic maintenance is recommended to ensure the system’s performance. Simply check and clean the sump pit and pump as needed to prevent blockages and maintain optimal drainage.
