Firefighters were called to a fire at a tyre warehouse in Whitehall Lane, Grays.
Nine fire engines were called to the warehouse at just over midnight to tackle the blaze.
The fire was extinguished three hours later. Crews used twelve sets of breathing apparatus and used five main jets and three hose reels to extinguish the fire.
By 7am, two fire appliances remain at the incident damping down. The cause of the fire is unknown at this stage, ECFRS and the police will carry out an investigation.