Commercial refrigerators are refrigerators used in restaurants for commercial use, and they are more extensive than domestic refrigerators. Because of being bigger, repairing a commercial refrigerator is undoubtedly higher than a regular domestic refrigerator. Here are a few easy ways to avoid calling refrigeration contractors for quite a while until it is essential. The primary responsibility of a refrigeration contractor is to see that the refrigerator is working fine. Three obvious ways to prevent your commercial refrigerator from breaking down.