What insurance companies insure roof problems, electrical, plumbing problems. The inside of the house problems..

Are you talking about insuring againist roofs leaking, sinks clogging up, that kind of thing? Most home policies will insure againist the damage these issues might cause such as a roof leak ruins your carpet or flooring. However, I have not come agross any policy that insures the repair of a roof that ages and leaks or a sink that clogs with hair and grease and needs rodding.