For businesses with several workstations a fixed maintenance contract is almost always worthwhile: regular security updates on all computers, monitoring of server and network, and we take care before something fails instead of only afterwards.
Much of this we solve by remote maintenance directly from a distance without anyone in the office noticing. For bigger topics, such as new hardware, a move to a new office building or an expansion of production, we are on site in about 30 minutes.
For industrial businesses with sensitive production data we additionally document maintenance work traceably.