Now the balcony should be sealed for renovation. Now the property is designated with materials, but the price is very high. Is this a requirement for property rights? Is there any relevant government

Now the balcony should be sealed for renovation. Now the property is designated with materials, but the price is very high. Is this a requirement for property rights? Is there any relevant government supervision? There is a basis for the property to require the balcony to be closed, because the right to appear on the balcony is not personal. If everyone's materials are not unified, the style of the whole community will be chaotic.

However, the property cannot specify where to buy it. Property can only specify the material, color or brand of the material, but where to buy it is a personal right, and the property has no right to interfere. You can complain to the Consumers Association or directly expose it in the newspaper!