Windshield Time: The Hidden Margin Killer for Lawn Care Operators

You have a client forty minutes across town. They pay well. The lawn is straightforward, the work takes ninety minutes, and they never complain. On paper it looks like one of your better accounts.

But add up the math. Forty minutes there, ninety minutes on site, forty minutes back. That is almost three hours of your crew's time billed to a ninety-minute job. The drive time is not getting paid for. It is coming straight out of your margin.

This is windshield time — the cost that almost nobody measures and almost everybody absorbs.

Why it does not show up in your numbers

If you track your financials at all, you probably track revenue and costs per job. Labor hours on site. Materials used. Equipment time. Those numbers make it into your accounting software because they happen at the job.

Drive time does not. It is invisible in most job costing setups because nobody assigns it to a specific account. It just disappears into the total labor hours for the day, spread across everything, not showing up anywhere as a cost.

The result: accounts that are across town look just as profitable as accounts around the corner. They are not.

The route density problem

The most profitable lawn care businesses are not necessarily the ones with the highest rates. They are the ones with the best route density — accounts clustered close together so that drive time per stop is low.

An account that pays eighty dollars and is two minutes from another job is more profitable than an account that pays one hundred dollars and is alone on the other side of town. The math is not complicated, but you need to see it to act on it.

Most operators know this intuitively. Very few have the numbers to prove it when it matters — when they are deciding whether to take on a new client, whether to drop an existing one, or what to charge when someone asks for a quote in an unfamiliar area.

How to account for it

The simplest approach: add drive time to your labor cost per account. If your crew costs fifty dollars per hour and it takes forty minutes round trip, that is thirty-three dollars of drive cost that belongs to that job. Add it to labor before calculating margin.

When you do this, some accounts that looked fine will look different. The client across town who pays well might be your worst account once drive cost is included. The cluster of three residential clients in the same neighborhood might be your most profitable block of work.

What you can do with this information

Once you can see true margin per account — including drive time — you have real leverage:

Repricing. Accounts with high drive time should be priced higher. If they will not accept a higher rate, you now have the data to justify walking away.

Route building. When you are quoting new clients, you can factor in how they fit into your existing route. A new client two blocks from an existing one is worth more than a client across town at the same rate.

Culling. Every operator has accounts that are not worth it. Windshield time is often what makes them not worth it. Now you can prove it.

Margn shows margin broken down by every account. Add drive time as a cost line in your uploads and it becomes part of the calculation automatically. Download the landscaping sample to see the format, or get started free.

Want to start with a spreadsheet first? The Service Business Profitability Calculator includes a drive time cost field and calculates margin per account automatically.