SYSTEM DECOMMISSIONING....... At PTESL we have the specific knowledge and experience to safely isolate, make safe, remove & dispose of any Gaseous Fixed Extinguishant System. We can undertake complete system removals, such as the full Mechanical & Electrical elements of a system and associated devices or just make Cylinders safe and relocate them, should the client wish to keep them on site as spares. We do not subcontract any of our works out to third parties and even use our own specialist ADR HIAB vehicles, to undertake all Cylinder handling and removal from site operations.