What should I do if there is water seepage in the basement of Villa Tangxun Lake 1?

Find feedback from the property management office immediately. Waterproof has a five-year warranty and belongs to the developer. If negotiation fails, you can sue. If the warranty period expires, you need to deal with it yourself and repair it yourself. There is a product in the waterproof and plugging industry called UD high-strength special long-acting impervious material, which is specially designed for basement water seepage and leakage, and can be directly used on the back of water surface. Specific suggestions, find professionals to investigate the causes of water leakage on site and formulate specific plans, and find professional plugging companies and personnel to deal with the construction implementation.