If the external wall is broken, you can refuse to pay the property fee if you don't maintain the property.

You can't. If the owner refuses to pay the management fee on the grounds that there are some defects in the property management service, such as the dirty environment of the community, some facilities not being repaired in time, and complaints that the owner has not handled it as soon as possible, the court will not support it.

Legal basis:

property management regulations

Article 35 A realty service enterprise shall provide corresponding services in accordance with the stipulations of the realty service contract. The realty service enterprise fails to perform the realty service contract, causing personal and property safety damage to the owner, and shall bear corresponding legal responsibilities according to law.

Thirty-sixth property services companies to undertake the property, it shall go through the formalities of property acceptance with the owners' committee, the owners' committee shall hand over the materials stipulated in the first paragraph of Article 29 of these regulations to the property services companies.

Article 56 If, in violation of the provisions of this Ordinance, a residential property construction unit fails to select a property service enterprise through bidding or selects a property management service enterprise through agreement without approval, the real estate administrative department of the local people's government at or above the county level shall order it to make corrections within a time limit, give it a warning and may concurrently impose a fine of more than 6,543,800 yuan.