Utilities | Sienna Construction

Working with utility companies

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 extension of existing substations and general civil engineering.

We deliver a wide variety of building and civil engineering works including:

Design & construct
11kV to 400kV sub-stations
Groundworks in live compounds
Transformer and cooler bases & bunds
Reinforced concrete structures, equipment bases & basements
Retrospective bunding and flood defence
Reinforced & pre-cast cable troughs
On site & off-site cable trenching & install
Cable design, laying and diversion

Find out more

Our Capabilities

Why Sienna?

An Independent Connection Provider (ICP) under the NERS accreditation scheme offering cable installation and jointing
Strong track record of delivering projects of this nature within controlled environments, on time and to budget
Value for Money – We save you money through effective value engineering
Open, Collaborative, no hassle teamwork approach - we work with you to ensure projects are delivered on time, to budget and snag free
Skilled team of direct labour who work to the Sienna expectations and have the ability to adapt quickly whilst working to strict health and safety standards.
Director level involvement on all projects

My overall impression was a well set up and tidy site with a proactive approach to managing safety and welfare. I found that there is an attitude at Sienna of wanting to continuously improve and a willingness to discuss issues.

Carl Pates

SSE

Case Studies

Construction

Utilities

SSE, New 33Kv Switch House, Yeovil

SSEN, New 133kV Substation, Bicester