Five fire engines were called to a fire at a recycling plant on Bolton Road in Wath upon Dearne at 1:45am on Thursday.
Fire crews from Dearne, Rotherham and Doncaster stations attended the incident. A large amount of rubbish for recycling was on fire inside a warehouse building.
Firefighters used hose reels to tackle the blaze.
Crews left the scene at 7am.
The fire is currently under investigation but is believed to have started accidentally.