There are a lot of answers to this question. If you own the wiring, and we assume you own the property where you are doing the wiring, then you are legally allowed to conduct your own electrical wiring repair and maintenance. Whether you should or not is up to you. There are some occasions where it is highly inadvisable and even illegal to conduct wiring repair. Here are a few examples.
When You Order a Staff Member to Fix Wires
Even if you own the property, and you have employee and building insurance, you still cannot ask your staff members to fix your wires unless they are legally certified and insured to do so. If they are not qualified electricians, then you simply cannot have them do it. This is because it puts them and other people in danger, and even if you weighed up all the factors and determined that the risk is small, it is still illegal to have your staff members fix your wires unless they are qualified electricians and/or were hired to fix wires.
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