1. Keep all downspouts as far away as possible from window wells when designing your new eavestrough system.
2. If a downspout is close to a window well ensure it is fastened together very secure so that it can not fall apart and fill the well with water.
3. If you suspect that there is not proper drainage at the bottom of the well consult a basement waterproofing company to inspect. There should be a drain at the bottom to take water away so it does not enter your basement.
As shown in the picture below, the downspout drains near the window well. It's very likely that water flows into this window well from this downspout. This window well is in obvious need of attention. A temporary fix would be to add a long extention on the elbow to get the water farther from the basement window.
Have a home in Scarborough, North York or other areas in or near Toronto and need help with rainwater management? Visit http://www.eavestrough.ca/ or call us at 416 615 0443 for a free estimate for your eavestrough and leafguard project. We are experts in Toronto eavestrough.