Willmott Dixon is aiming to halve the carbon it emits by 2020 compared to 2010. As part of this drive, it has signed up with renewable energy supplier SmartestEnergy.
The company said that the price was competitive against current standard energy contracts. It aims to eventually use renewable energy to power construction site offices.
Group chief executive Rick Willmott said: “Climate change is a major threat to our planet and I believe every company is responsible for limiting its own impact on the environment to reduce global warming. It’s been a key priority for us and over the past five years we’ve reduced our emissions relative to turnover by over 30%. We are now committed to halving emissions by 2020 (compared with 2010) and better energy labelling has helped us make the right decision when it comes to electricity purchase.”