An unpleasant problem. Clearly, mistakes were made during construction. Do not worry, the situation can still be saved by competent repair of the foundation. Pom Waterproofing are professionals in this business. Call them or leave a request at https://www.pomwaterproofing.ca/interior-waterproofing-mississauga/.... The master will come to you for an inspection and draw up a repair plan. They use only modern quality materials and take into account your budget. I am a builder myself and I know how people work. These guys can be trusted.