Downspout Installation & Drainage

Professional downspout installation, replacement, and drainage solutions for Ottawa properties. Downspouts are the critical link between your eavestroughs and the ground-level drainage that keeps water away from your foundation. Undersized, improperly placed, or too few downspouts are a leading cause of foundation water problems in Ottawa, where the combination of clay soils and a high water table makes effective water management essential.

Ottawa is built on Leda clay, a sensitive marine clay that expands significantly when wet and contracts when dry. This seasonal volume change exerts enormous lateral pressure on foundation walls and is the primary driver of basement leaks and foundation cracks across the city. Properly installed downspouts with adequate extensions or underground drainage connections direct roof runoff well away from the foundation, reducing the moisture load on the soil immediately surrounding your home.

Our downspout services include installation of new downspouts to supplement an undersized system, replacement of damaged or corroded downspouts, addition of extensions to direct water further from the foundation, and installation of underground drainage pipes that carry water to the municipal storm sewer or a dry well. For homes in flood-prone areas of Ottawa, including parts of Gloucester, Cumberland, and along the Rideau River, underground drainage solutions provide the most reliable water management.

We install 2x3-inch rectangular and 3-inch round downspouts in aluminum to match your eavestrough system. Larger 3x4-inch commercial downspouts are available for high-volume applications. Downspout placement is calculated based on roofline length, roof pitch, and expected water volume. The Ontario Building Code requires downspouts at regular intervals, and Ottawa's heavy rainfall events (increasingly common with changing weather patterns) demand capacity beyond minimum code requirements.

Every downspout installation includes secure wall mounting with appropriate brackets, a proper connection to the eavestrough outlet, and ground-level drainage that directs water at least four to six feet from the foundation. We also install splash blocks, rain barrels, and decorative downspout extensions where appropriate.