Alan Rodger
Managing Director, Sisk Infrastructure & UK North
Sinéad Hickey
Group Sustainability Director, Sisk
Learn how one company drives low-carbon innovation in construction with sustainable concrete, climate transparency and circular practices — transforming infrastructure across Europe.
John Sisk & Son, Ireland’s premier construction and engineering contractor, is spearheading a transformation in the construction sector by embedding sustainability at the core of its operations. Sinéad Hickey, Group Sustainability Director, explains: “We use standards such as ISO 14001 for the environment and ISO 50001 for energy as a starting point to embed sustainability into how we operate.”
Collaborative sustainability roadmap
“Our overall approach to sustainability is firstly shaped and guided by the standards we follow. True sustainability happens when project teams, design, supply chain and sustainability teams work together — it’s through this collaboration that sustainable practices become part of the whole organisation,” adds Hickey.
True sustainability happens when
project teams, design, supply chain
and sustainability teams work together.
Developing low-carbon concrete
A central part of the company’s sustainability journey is its focus on developing and using low-carbon concrete — one of the most carbon-intensive materials in construction. To tackle this, the company created an internal low-carbon concrete working group to better understand the material’s environmental impact and find practical ways to reduce embodied carbon in its projects.
This effort led to working with Ecocem’s ACT (Advanced Cement Technology) in a collaborative partnership supported by Innovate UK. ACT can cut carbon emissions cement production by up to 70%.
A-rated carbon disclosure strategy
Sisk’s commitment to transparency and leadership in climate action has been recognised with an ‘A’ rating from the Carbon Disclosure Project (CDP) in 2024, which places them among the top 1% of responding companies globally. CDP’s global environmental disclosure platform highlights the company as a front-runner in climate transparency and accountability, empowering stakeholders worldwide.
Efficient and eco-friendly infrastructure expansion
Through strong industry collaboration, Sisk shows how partnerships can drive sustainable innovation. Whether building hospitals or data centres, the company combines sustainability with engineering to create resilient, efficient and eco-friendly infrastructure that lasts for generations.
Alan Rodger, Managing Director of Sisk Infrastructure, explains: “We’re also seeing increasing demand in transport, with growing work in ports, airports and local authorities aiming to decarbonise their networks. Sisk’s strong track record in these areas positions us well to take on this expanding workload.”
