What your trade computes that others do not
A service contract is a mechanism of its own. It carries a frequency, a commitment to attend, a price that renews, and it generates work the system must produce unprompted: visits to schedule, visits running late, contracts approaching their end. A calendar cannot do that, because a calendar does not know what an expired contract is.
On top of that sits an obligation the other building trades do not have: refrigerant traceability. Charge, recovery, equipment number, the technician's certification — it has to stay current and be retrievable equipment by equipment, not reconstructed in a folder the night before an inspection. Capture in the field feeding the register is the only version that survives.
Finally, profitability reads neither at the project nor at the contract, but at both. An installation job is judged on the quote, the hours spent and the materials used. A service contract is judged on a year of visits against a flat fee — and that is where the contracts that no longer make money hide: the ones whose reactive call-outs doubled while the price stayed put. Nobody sees it while the two live in two different tools.
What most companies work around by hand
None of these is negligence: they are the places where the trade outruns the tool.
- Maintenance visits are scheduled from a yearly spreadsheet kept by one person.
- The refrigerant log is copied from paper reports after the fact.
- A job report is re-keyed at the office before it can be invoiced.
- Contract profitability is only computed when somebody asks for it.
- The technician phones the office to find out what was done to the unit last time.
- Hours spent on a project are known too late to correct anything.