Sangdayuan property

Waterproof products have a five-year warranty. During the warranty period, the developer is responsible. If you can't repair it twice in the same place, you can find someone to repair it yourself, and the developer will pay for it! After the warranty period, the roof belongs to the public, and the maintenance cost should be shared upstairs and downstairs! Repair today, leak tomorrow, repair every year, leak every year, unfortunately, just because the repairman can't repair! Provide free professional technical advice on repairing concrete waterproof leakage!