Commissioning & Decommissioning Support Services

SQS provides end‑to‑end on‑site commissioning and decommissioning support to ensure assets are brought into or removed from service safely, efficiently, and in full compliance with project specifications and regulatory requirements. Our team supports pre‑commissioning activities including system and subsystem walkdowns, installation verification, punch‑list management, test readiness reviews, and verification of mechanical completion. During commissioning, we oversee and verify functional testing, performance validation, calibration checks, and integrated system testing, ensuring equipment and systems operate as intended against design criteria and operating envelopes.

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For decommissioning projects, SQS provides structured on‑site oversight covering isolation and shutdown verification, asset condition assessments, compliance with environmental and safety controls, and confirmation that decommissioning activities are executed in line with approved methodologies and legislative obligations. We focus on traceability, documentation accuracy, and risk control throughout the process, supporting clients with clear reporting and independent assurance at each stage. Our practical, technically rigorous approach helps reduce operational risk, support safe transition of assets, and deliver confidence at critical project and lifecycle milestones.