A number of tools were stolen from vans in Brigadier Way in Weldon, Corby.
The incident happened between 2.45am and 3am on Tuesday (April 16), when a group of males broke into the vans and stole a number of items including various Dewalt and Makita power tools.
Most of the Dewalt power tools were labelled with the letters J+R and a Paslode nail gun was labelled with the words WC Contractors.
The offenders made their escape in a silver/green estate car.
Witnesses or anyone with information should contact Northamptonshire Police on 101.
Alternatively, they can call Crimestoppers anonymously on 0800 555111.