I bought a commercial house, the upstairs toilet drip house, the owner of the house no matter how to

Yes, it depends on the formation of dripping water in the upstairs toilet;

One is to look at the age of your house; The waterproof structure of the house is guaranteed for five years, and the state stipulates that the accident party must be determined first, and if the waterproof on the development is unqualified and does not exceed the life limit, it should be repaired by the developer; This is a situation (which is usually rarely seen now; If there is a problem, there will be a record at the time of acceptance, you can check the property to check the record of the acceptance handover order of the house);

2. If the house is renovated by the upstairs owner, the waterproof failure of the bathroom floor and the leakage of the downstairs owner should be repaired by the upstairs owner and bear the corresponding loss. If the two parties cannot resolve the matter through negotiation, you can file a lawsuit with the local people's court.

3. If it is the waterproof failure of the upstairs bathroom caused by the renovation of the ceiling in the bathroom, you should be responsible for repairing it.

As for what caused it, you can ask the property to give you a certificate of out, so that you can sue; I suggest that you take a photo of the water seepage in the upstairs bathroom, and ask the property owner to make a written certificate for you, and the property will be recorded during the warranty; in order to prosecute.

I guess you might be in the second case.

How long have you been buying a house, if the delivery is less than three years, it should still be in the warranty period, and you can let the developer repair, if the upstairs owner re-does waterproofing when renovating, how can only the upstairs owner be responsible for the maintenance, if the upstairs does not deal with it, you can sue him, let him eliminate the hidden dangers, the newly promulgated property law has a detailed introduction,