Be sure that the business employing them has a permit for electricians. There are many people who pretend to be electricians but do they are actually licensed? It’s important that your electrician show you their certificate and proof of insurance. If not, that’s what the insurance cover is designed for.
If the task they’ve been given is specialized, make sure they are qualified to complete the task properly. Call the business to find out whether the work is suitable for another person. If they cannot, this isn’t the ideal business for you to work with. A Google search is all it takes to find a new company.
It’s difficult to choose the correct company with the number of tiny companies across the globe. However, confirming with the individual working on your property to ensure they are certified as well as insurance and that they are qualified for the job, makes hiring someone will be much more easy.