What department should I find downstairs to solve the water leakage upstairs?

If there is water leakage upstairs, you can find the property department to coordinate, or ask the house quality inspection department to make an appraisal report on the causes of water leakage and how to make up the leakage, and then you can bring a lawsuit to the court according to the report.

Legal basis: Article 288 of the Civil Law stipulates that the adjacent obligee of real estate shall correctly handle the adjacent relationship according to the principles of favorable production, convenient life, solidarity and mutual assistance, and fairness and reasonableness.

Whether the property with leaking roof can refuse to pay the property fee. "Legal Express" reminds you that according to the regulations, it is the owner's obligation to pay the property fee. No matter whether the property is leaked or not, you can complain to the relevant local management department. The consequence of defaulting on property fees is that the property will stop providing property services. If the amount of arrears is large, the property company can sue for the payment of property fees. If the owner and the user of the property agree that the user of the property shall pay the property service fee, the owner shall bear joint and several liability from the agreement.