Look to see exactly what gets repaired in your dream. This can symbolize your body, mind, or spirit, or alternatively, a situation or relationship that needs mending. Usually repairs on a house equate to the self, whereas repairs to objects may be less personal in meaning.
The quality of the repairs performed here is also important. If, for example, a castle wall is patched with faulty materials and begins immediately to fall apart, this can reveal a halfhearted truce on the home front, or a makeshift cure for a malady that only covers symptoms.