SUBSTATIONS
Sienna Construction have been working alongside major power companies and network operators such as Scottish & Southern Energy, Western Power Distribution and National Grid since our formation to deliver the construction of new sub-stations, the refurbishment and extension of existing sub-stations and general civil engineering projects.
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.
