Power & Utilities
Sienna have been working alongside major power companies such as Scottish & Southern Energy, Western Power and National Grid since our formation to deliver the construction of new substations, the refurbishment and extensions of existing substations and general civil engineering.
We are an Independent Connection Provider (ICP) under the NERS accreditation scheme offering cable installation and jointing. We are Achilles UVDB registered and undergo the Achilles Verify audit.
We are committed to achieving the highest standards of health, safety, environmental protection and quality at all times, ensuring that all employees and partners under our control are working within a safe and healthy environment.
