Crews from Verwood Fire Station attended and extinguished a fire at the Woolsbridge Industrial Estate in Three Legged Cross on Monday.
Emergency services were alerted to the incident at 11.15am.
Once in attendance, a fire involving the electrical supply to one of the premises was discovered. Additional resources were requested from around the Dorset area and a total of 6 pumping appliances attended.
The fire was extinguished using multiple CO2 extinguishers and isolation of the electric supply.