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Find the decoration company you decorated at the beginning, and look at how long the warranty they promised you at the beginning? During the warranty period, they should be fully responsible for the treatment, and the losses caused should also be borne by them. If you found someone to decorate it yourself, you would have to bear it yourself.
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If it is under warranty, you can let them redo it.
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You can find a renovation company.
Please refer to the contract on the warranty and the two books (the commercial housing quality assurance certificate and the commercial housing instruction manual). >>>More
Yes, but I want to say both.
First, it is the responsibility of the renovation company in the case that the owner has not done any damage. >>>More
Scrape off, or spray it where you're going to remove it with Kingstella cleaner and wipe it off with a rag.
After the expiration date, it can only be repaired by the upstairs residents, and you can also negotiate with the upstairs to bear some of the costs appropriately, after all, you are the beneficiary.
I think first of all, you need to confirm what the cause of your bathroom leakage is, whether the waterproof layer is not done well, or the pipe is broken, and then you can do the most correct treatment according to the cause.