The parts that never made it onto the invoice

Tuesday morning. A tech is on a service call at a two-story colonial. The capacitor on the outdoor unit is bad. He pulls a $32 replacement from the truck stock, installs it, tests the system, closes the panel. Back at the truck he clocks the visit, snaps the after photo, texts the customer the invoice.

The invoice does not have the capacitor on it.

Not on purpose. Logging the part was a step somewhere else. A separate app. The office spreadsheet. A parts slip he was going to write out at lunch and forgot. By Friday, when the shop tries to piece the week back together, the capacitor is a hazy memory. The invoice is already sent. It stays as-sent.

Do that thirty times a month with couplings, capacitors, fittings, filters, valve stems. Somewhere between three and seven percent of parts revenue quietly walks out with the truck. Owners who audit their own last month of jobs against the truck stock consistently find it. Nobody stole anything. Nobody was careless. The step to log the part was one screen away from the step that finished the job, and one screen too far.

Here is why it stings. The ACCA Contractor Financial & Operating Performance Report put the median HVAC contractor’s net profit margin at 5.8 percent. The top quartile came in at 13.2 percent. Same trade, same trucks, same customers. That seven-point gap is not one big thing; it is ten small ones stacked on top of each other. The small parts that make it onto the invoice are one of them.

Why did the old approach make sense for so long. The tool most shops use today was built when the tech carried a paper work order and the office typed it in. Parts, labor, and photos were three separate handoffs. If parts got dropped, the invoice still went out; the shop just did not know it was short. Nobody was going to give a tech an app twenty years ago that logged the part in the same tap he closed the job.

Now they can.

A different approach: everything the tech does at the end of a call happens on one screen. The timer stops. Two photos go up. Parts used get tapped in from the truck stock list in the same three seconds it takes to check the box. The customer signs on the phone. The invoice sends. Same tap, same place. Nothing waiting on Sunday to be retyped from a stack of parts slips.

The point is not the app. The point is the tech never has to remember a step in the office he already forgot in the truck. If the part is on the truck, it is on the bill. If it is not on the bill, the tap that installed it was never really finished.

A hundred and change per day in small parts that never made it onto the invoice is a hire or a truck payment by year’s end.

One thing worth trying this week. Pull your last thirty invoices. Take the truck stock counts for the same week. Match them up. Look for the small ones. That is your answer, in dollars, before anyone tries to sell you anything.

If the number surprises you, and it usually does, come look. www.nyva.app. Plans that fit a one-truck shop or a five-truck crew.