Tool theft is one of the biggest running costs a trade business never budgets for, and knowing how to stop tool theft on site is what keeps you working rather than replacing kit. It is a growing problem. Reported tool theft rose sharply in 2025, and industry surveys put the share of tradespeople worried about it well into the high eighties [confirm figures below]. The good news is that most theft is opportunist, which means a few practical habits and one secure steel box stop the large majority of it.
Big enough that most trades either know someone who has been hit or have been hit themselves. Trade press reporting through 2025 pointed to a double-digit rise in reported tool theft year on year, and separate surveys found that the clear majority of tradespeople now worry about it. The exact figures move around by source and by year, so treat the numbers as a picture of a real and growing problem rather than a single statistic. What does not change is the pattern: most tools are taken from vans overnight and from unsecured sites, and most of it is opportunist rather than sophisticated.
Knowing where the risk sits tells you where to spend your effort. Three situations account for most losses.
None of these is complicated. Done together, they turn you from an easy target into more trouble than a thief wants.
Most of the steps above make you a harder target. A proper site security box is the one that actually stops the theft happening. A ToolSafe box is welded from 1.5mm mild steel, fitted with a high-security 8-lever safe lock and an internally fixed hinge that cannot be knocked off from the outside, so the quick attacks that open a budget box simply do not work. Bolt it down or specify fork pockets and the box cannot be carried off either. For most trades, moving tools into a locked steel box overnight is the highest-value change they can make.
Act quickly. Report the theft to the police and get a crime reference number, because your insurer will need it. Give them your serial numbers and photographs. Flag the stolen items on any tool register you use and check local resale sites and marketplaces, where stolen tools often appear within days. Tell your insurer promptly and within the time limit in your policy.
It is common and rising. Trade reporting in 2025 pointed to a double-digit increase in reported tool theft, and most tradespeople now say they worry about it. Vans left overnight are the most frequent target.
It stops most of it. A welded steel box with an 8-lever lock, bolted down, defeats the quick opportunist attacks that account for the majority of thefts. No box is uncrackable given unlimited time, but a good one makes your tools far more trouble than they are worth.
Somewhere fixed and out of easy view where it can be bolted down: a locked cabin, a container or a secured compound. A box on castors should be wheeled into a lock-up and secured rather than left in the open.
