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The visit is the smaller half
An annual inspection tells you the charger was working on the day somebody stood in front of it. It says nothing about the rest of the year, and the rest of the year is when things break.
That is the honest limitation of any inspection led contract. It is also why the question of what happens between visits is the one worth asking a prospective maintainer first.
How a fault surfaces
There are two ways, and they are very far apart.
Somebody complains. A resident emails the managing agent. A driver tells the facilities team. The report arrives days or weeks after the failure, filtered through somebody’s memory of what the charger did.
The charger tells you. On a monitored site the unit reports its status continuously. When it drops offline, throttles itself, or fails to start a session, it shows up on the maintainer’s side. On higher tiers that raises a ticket automatically.
The practical difference is timing. Sites on planned inspection alone find out when somebody sends an email. Sites on monitoring find out first, and often before anyone has tried to plug in.
What gets fixed without a visit
A useful share of faults never need an engineer. A unit that has locked up, lost its back office connection, or stalled after a firmware update can usually be cleared remotely.
That matters for two reasons. It is faster, because there is no travel and no appointment. And it is cheaper, because a remote fix does not consume a callout.
What it cannot fix is anything physical. A tripped protective device, a damaged connector, a cable locked in the unit or water ingress all need somebody on site.
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What a response time actually means
This is where contracts differ most, and where the wording repays reading.
Best effort means no commitment. It is a legitimate product for a site where occasional downtime is not a problem, and it should be priced accordingly. What it should not be is called an SLA.
A guaranteed response names a number of hours and commits to it. Ask what the clock starts on: the moment the fault is detected, or the moment you report it. On a monitored site those can be a long way apart, and the monitored version is worth more.
Response time is time to attend, not time to fix. A part that has to come from a manufacturer will take what it takes. A contract that promises a fix time regardless of parts availability is promising something it does not control.
The question worth asking
When you are comparing contracts, ask whether the engineer’s labour on a breakdown visit is included in the annual price or billed separately.
Several contracts in this market bill it separately. You buy a maintenance plan, a charger fails, and the visit is invoiced on top. It is the single largest difference between a headline rate and what a year actually costs.
