French Drain

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French Drain Ottawa

This is a perimeter drain, or a French drain, found quit often in Ottawa and it is the best way to stop a basement from flooding. This type of drain is a trench filled with rock or gravel that guides water running on the surface away from the area it surrounds. In some instances, a perforated pipe is used in place of the gravel or rock. The drain can also have a combination of gravel with a perforated pipe underneath to redirect any water that filters or seeps down through the gravel.

The main feature of a French drain is that it can be made from a gravel substitute, which is lightweight, wrapped around the perforated pipe and covered with a filter fabric. Here in Ottawa this type of drain is found primarily utilized in preventing surface water from contacting a foundation avoiding any damage. Moreover, they are also used to accompany a retaining wall. When this type of drain is utilized in this manner, they help reduce surface water pressure.

Great Job with this company, I was very happy with all the work. They did a great job with waterproofing and underpinning my home.

– Michel K.

If you require a french drain to move water away from your building

Make sure to give the foundation experts, at Foundation Repair Ottawa a call at

(613) 903-4924

We have the expertise to resolve your issues.

French Drain FAQ

What is a French drain?

A French drain is a type of drainage system that is designed to redirect water away from a building or property. It typically consists of a trench filled with gravel and a perforated pipe that is covered with more gravel and topped with soil or turf.

How does a French drain work?

A French drain works by collecting water from the surrounding soil and directing it away from the building or property. The perforated pipe allows water to flow into the trench and be carried away from the area, while the gravel helps to filter out any debris and prevent clogs.

When is a French drain needed?

A French drain may be needed when there is excess water or moisture around a building or property, which can lead to issues like foundation damage, basement flooding, or landscape erosion. It may also be necessary in areas with a high water table or where there is a risk of heavy rainfall or flooding.

How is a French drain installed?

To install a French drain, a trench is dug around the perimeter of the building or property, sloping downward to direct water away from the area. A layer of gravel is then placed in the bottom of the trench, followed by the perforated pipe and another layer of gravel. The trench is then covered with soil or turf.

How much does a French drain cost?

The cost of a French drain will depend on several factors, including the size of the area to be drained, the depth and length of the trench, the type of pipe and gravel used, and the cost of labor. On average, you can expect to pay several thousand dollars for a French drain installation.

How can I maintain my French drain?

To maintain your French drain, it is important to keep the trench free of debris and ensure that the perforated pipe remains unclogged. You should also inspect the drain regularly for signs of damage or erosion, and make repairs or adjustments as needed.