A smoke detector alerts the occupants of a building that a fire has emerged, so they can take the necessary steps and save their lives. Suppose this system fails to work when a fire starts. This can lead to a serious disaster. To prevent such a thing from happening, periodic fire alarm testing London is conducted. The engineers visit your premises and inspect all the components of the fire alarm system. If they are functioning effectively, great, If not, then they will apply necessary measures to make it work, so the occupants of the building can receive fire alert messages in the event of fire.