Fire broke out at a building on Manners Road Industrial Estate on the afternoon of Wednesday May 22.
Four engines from Long Eaton, Ilkeston, Heanor and Derby Road were called out to the incident, involving one building on the estate, at 4.55pm.
The fire was put out by 5.35pm with an investigation then carried out into a property next door.
By 5.42pm investigations had been completed and both buildings were being ventilated. All fire appliances except one left the scene by 6.15pm. No injuries were reported.