Climate change and achieving net zero is a critical issue for Government, businesses, and the community at large. We remain committed to identifying and implementing measures to contribute positively and minimise our impact on the planet.

We are working to continuously improve both our operations and those of our customers to reduce emissions, decrease carbon footprint, and reduce the environmental impact of our project activities.

During the year, Tamdown established a dedicated Sustainability Committee to oversee strategic environmental objectives and delivered sustainability training for the leadership team to embed sustainable thinking into decision‑making. We now have a clearer understanding of where our emissions are coming from. We also joined the Supply Chain Sustainability School and achieved Bronze status and remain committed to continuous improvement as we work towards Silver and beyond, reinforcing our dedication to best practice and industry collaboration.

Tamdown has taken a proactive step in reducing its environmental footprint by adding a new 7.5-tonne Mitsubishi 7C15 tipper to its fleet. This vehicle is equipped with ‘Selective Catalytic Reduction’ which converts harmful nitrogen oxides into harmless nitrogen and water and a diesel particulate filter which captures and stores harmful particles from being released into the atmosphere. Both of these systemLows work together to minimise harmful emissions and ensure the tipper is ULEZ compliant. By matching the right vehicle to the right job, this smaller truck can handle jobs more efficiently without deploying a larger vehicle, while also lowering our environmental impact.

In March 2025, Tamdown launched an idling monitoring reduction programme for heavy plant equipment, designed to lower fuel consumption and emissions. Alongside this, we introduced enhanced monitoring of ‘Fuel Left on Board’ (when fuel is delivered to our sites). While it is too early for data to demonstrate measurable improvements, these initiatives mark an important step in our commitment to minimising waste and reducing our carbon footprint. We expect to report on the impact of these programmes by the end of FY26.
Innovation remains central to our approach. Our investment in new types of equipment has increased (up from £801k in FY24, to £2.6m in FY25) and we are including further investment in future planning. Research into alternative fuels is ongoing, including the potential use of hydrogen-powered lighting systems, which eliminate electric generators, reduce noise and improve efficiency.

We are in the early stages of exploring AI-driven automation to improve operational performance and enhancing data collection for carbon reporting to ensure accurate measurement and transparency. We continue to monitor the market for emerging technologies and ideas that can support our sustainability objectives.

Tamdown continues to sponsor the planting of a tree for every foundation that the business completes. This year, the company contributed to restoring and regenerating native woodland at Dumyat, Stirling in Scotland, with a total of 834 trees planted. This brings the total number of trees sponsored since the campaign began to an impressive 4,390 by the end of FY25.