The Service Book Goes On Trial: What the Heating Season Proves

The TestThe service round is the only independent audit your book gets

A maintenance book looks the same on a spreadsheet in June as it does in September. What the autumn programme does is find out which of those agreements is real: which customers renew without a conversation, which need chasing, which have quietly moved to somebody cheaper, and which sites turn out to have changed hands without anyone telling you. That is an audit, and it is free.

The useful part is that it produces numbers rather than impressions. Renewal rate by value and by customer count. Visits completed against visits scheduled. Average time on site against what was priced. The proportion of visits that generated remedial work, and what that work was worth. None of those figures requires a system you do not already have, only the decision to record them deliberately this year rather than reconstruct them later.

It also tests the part of the book nobody writes down, which is whether the customer knows they have an agreement. A site that greets your engineer as an expected annual visit is a different asset from one that treats the same visit as a cold call, and the difference tends to show in how the renewal conversation goes rather than in any document. Autumn is when you find out which you have, site by site.

Worth saying plainly: none of this is an argument for changing how you work in September. The service round happens anyway. The only decision on offer is whether it leaves a record behind it.

The RecordWhat to write down between now and January

Renewal rate is the headline and it should be calculated both ways. Ninety per cent of customers renewing sounds strong until it turns out the ten per cent who left were a quarter of the contracted value. Buyers calculate it by value because that is what they are buying, and an owner who presents it by value first is signalling that they understand their own business.

Service completion is the second record and it is about capability rather than loyalty. A book where scheduled visits slip into the following quarter every year is telling a buyer that the business is sold beyond its labour, which is a real finding and one that engineer recruitment cannot fix quickly. A book that completes on schedule through the busiest quarter is evidence of something an acquirer cannot verify any other way.

The third is remedial revenue arising from service visits, tracked separately from the contract income. It is usually a larger number than owners expect, and it is the strongest argument for why a maintenance agreement at a modest annual value is worth more than its own invoice. It also demonstrates something a buyer cares about, which is that access to the customer produces work without a sales effort.

Ninety per cent of customers renewing sounds strong until it turns out the ten per cent who left were a quarter of the contracted value.

The UseA season of records answers questions before they are asked

In diligence the contract book is the area that generates the most questions, because it is where most of the value sits and it is the hardest thing to verify from outside. An owner who can hand over a renewal rate by value, a completion record and the remedial revenue arising from visits has answered the first three weeks of that process on day one.

The opposite position is familiar and expensive. Records held partly in a job management system, partly in an engineer's paperwork and partly in the owner's head, reconstructed under time pressure while a buyer's adviser bills for waiting. The information is usually there. What is missing is the decision, taken in September rather than in the spring, to record it as it happens.

If a sale is two or three years away, this season is worth treating as the first of two or three that will eventually be shown to somebody. Consistent records across three heating seasons are more convincing than one good year, and they take exactly the same effort to produce, provided you start with this one.