What a recurring arrangement adds
An agreed cycle, a defined scope per visit, a written record each time, and a threshold for small items that removes an approval step.
What it does not add
It is not an emergency call-out contract and carries no response-time commitment. Anyone offering both in one arrangement is offering one of them dishonestly.
How to tell which you need
Count how often you called someone last year. If the answer is predictable, an arrangement is cheaper and calmer.