Most real estate contracts contain a segment dealing with home inspections during the purchase process. Oftentimes the buyer and seller differ on not only what needs to be repaired but also the definition of what a “repair” is. When completing a repair it must be done in what is defined as a “workmanlike” manner. You may ask, what does “workmanlike” mean. Here is the webster definition of “workmanlike”. “characterized by the skill and efficiency typical of a good workman” As an example, when someone makes an electrical repair on their own, did they do it like an electrician would have done? So in conclusion, it doesn’t take a roofer to install a shingle, but if you do it yourself, it must be done like a roofer would have done it.