How to protect the rights of commercial housing with quality problems

The last house I bought had quality problems, which even seriously affected my living. Many people are anxious to get angry. What should they do if the house has quality problems? Housing quality problems are generally divided into three types. First, the quality of the main structure of the house is unqualified, such as problems with the foundation and load-bearing wall; Second, the quality problems that seriously affect the normal living use, such as the failure of normal water supply and power supply and the substandard sound insulation effect; Third, other general quality problems, such as water seepage, wall peeling and so on. The law has different ways to deal with different quality problems. If the house can't be used due to the unqualified quality of the main structure, the buyer may request to terminate the contract and compensate for the losses. In the case that there are serious quality problems in the house, which seriously affect the normal living and use, the law allows buyers to cancel the contract and demand compensation for losses. However, the buyer may also ask the seller to repair it, and the seller shall bear the responsibility of delayed delivery or compensate for other losses caused by the repair. For other quality problems, because they have not seriously affected the residential use, the seller can only be required to repair and compensate for the losses, and cannot be required to return the house. To sum up, in case of housing quality problems, we should decide what measures to take to safeguard rights according to different situations. The law stipulates many methods, and the parties should weigh which method is more beneficial to them.