How many years is the warranty for reinforcement/renovation? Protect what? How long does it take to come to the door when there is a problem? Does maintenance cost money?

1、 Overview: Legal bottom line+long-term protection The reinforcement of the main structure has long-term legal responsibility. According to the Building Law (UU No. 2/2017), the contractor’s liability period for building failure (Kegagalan Bangunan) can be up...