Drainage Service in Richmond Hill

Drainage work covers a wide range of jobs: grading a yard so water moves away from the foundation, installing or repairing weeping tile, adding catch basins and French drains, tying downspouts into storm sewers, fixing window well flooding, and dealing with sump pump systems and backwater valves. In a city like Richmond Hill, where clay-heavy soil and older subdivisions don't always drain well on their own, this is often the difference between a dry basement and a recurring problem after every heavy rain or spring thaw.

We've profiled 7 drainage businesses serving the area. Some are foundation and waterproofing specialists who happen to do drainage as part of that work, others focus more narrowly on exterior grading, downspout extensions, and catch basin installs. Before you hire, ask for a clear diagnosis of where the water is actually coming from (surface runoff, groundwater, a cracked foundation, or a failed weeping tile), not just a quote to dig a trench. A contractor who inspects before quoting, pulls permits when the job requires them, and explains the grading plan in plain terms is usually worth more than the cheapest bid.

Our scoring weighs how each company handles diagnosis, warranty terms, response time for urgent flooding calls, and how consistently past customers report the fix actually holding up. See the full breakdown and rankings in our best renovation contractors guide, and read how we score companies on our methodology page.