Firefighters were called to a blaze at a commercial garage at Millfold Way, Ripponden.
Two pumps from Halifax spent three hours at the scene yesterday afternoon.
Crew commander Mark Jones said cylinders were moved to a safe place away from the vehicle repair garage.
Vehicles were also removed.
“There was quite considerable damage internally - a lot of flame and smoke damage to walls and ceilings,” he said.
Garage equipment was also damaged.