01785 715472 | Contact us

StoneMaster Wins Green Apple

Carnell’s StoneMaster has won two International Green Apple Environment Awards, in the campaign to find the greenest companies.

The sustainable in-situ filter drain refurbishment process delivers environmental, economic, social and road-user satisfaction benefits. It has won both the Environmental Improvement and Sustainable Development categories, competing against more than 500 nominations.

The presentation ceremony held at the Houses of Parliament, London was originally planned for 23 November but has been postponed until the new year.


StoneMaster returns roadside filter drains to their optimum condition by removing the sediment that accumulates between the filter media. The in-situ recycling process improves road safety and pavement integrity by reducing flooding events and occasions of standing water on the carriageway.

The StoneMaster units are custom built, self contained vehicles that enable us to meet all site safety requirements. They can be operated during the day or night in virtually all weather conditions and in most carriageway locations without the need for full road closures.

You can visit the StoneMaster page here or watch a video of the process below: