You can prevent a basement leak by removing snow and ice from the foundation wall on the mountain side of your home. Because the ground absorbs inches of snow, it can’t go anywhere and build up against your house and infiltrate your basement. Make sure you have clear, unobstructed exits for your roof drains and the drainage of underground foundations that flow around the perimeter of your home. Make sure the roof exits are open so that melted snow can easily escape. The shaft leading to the outside connection can break if water freezes inside, causing a leak when the connection is turned on. Once the ground has thawed, the thawing water acts like a prolonged rain. You can remove snow and ice from the roof if you can, but not the ice. Although snow has already melted from sharp roofs, snow and ice on flat roofs can stay longer. These roofs are designed to be waterproof, but if you already have a small leak, it can be important during thawing. Make sure water from your downspouts is directed out of your home. When water enters your basement, a sump pump is designed to discharge it. But don’t leave the snow in a pile. Make sure the openings between the gutter and downspouts are clear. If the leak is inside, you may not know it. The contents of your hold are vulnerable to flooding. These systems are usually located on the street or at a location on your property.