Thieves raided a garden centre in Rishton before stealing power tools worth almost £1,500.
They struck at Park View Landscape Maintenance on Park Road between 5.15pm on Wednesday, December 15 and 7am on Thursday, December 16.
A Kawasaki petrol strimmer worth £350, a Stihl hedge trimmer valued at £350 and a 2ft wacker plate worth £700 were all taken during the burglary.
Sgt Simon Holderness, of Accrington Police Station, said: "Thieves have approached a garden centre via a field and climbed a fence into a compound and stole items from an insecure steel container.
"After that they then entered a locked warehouse, smashed the door in, before taking a 2ft wacker plate machine worth £700.
"They have then dragged the items away and onto a road before loading it onto a vehicle. It may well be that they have been offered for sale."
Anyone with information regarding this incident should contact Sgt Simon Holderness on 01254 353775.