In our Toronto, a problem with high humidity is almost a norm of life. My husband and I, in our stupidity, thought that nothing could be done with condensate on the walls. But thanks to his eldest son for helping to fix this problem. It turned out that we have a company that makes the basement waterproofing near me . They cleared our foundation of dust and dirt, and then applied bitumen mastic. Now I know what it is. But the most important thing is that we have dry and warmth now inside.