Excuse me, does the property have the right, requirement, qualification certificate and aerial work permit to seal balcony windows? Is it legal?

Property companies have no right to ask owners to provide these qualifications during decoration. Their purpose is to monopolize the decoration industry of the community. No matter whether the responsibility book is signed or not, the property management company will not be responsible for any safety accidents during the decoration process. Moreover, there are so many people engaged in this industry in China that it is impossible to require every staff member to have an aerial work permit.