When you are looking for IT support, you might consider the difference between break-fix support and managed IT services. Whereas break-fix services are designed to address any problems as they arise, managed IT services are intended to provide an ongoing service. You might not need the help from your managed IT service provider all the time, but you will still be paying for their services. If you don't use them, you won't get a refund on what you've already paid.
For more info: Break Fix Services