We work with major water and industrial/process companies undertaking traditional or design and build contracts including new treatment plants, trunk and transfer mains, large diameter sewers, sea outfalls and recycling depots.


Tenterden Water Treatment Works

As part of the Asset Management Programme (AMP6) Mackley undertook the construction of water treatment works at Tenterden. More...

Westhampnett Leachate Plant

Many factors influenced the start of the project, including an Environment Agency flood alleviation scheme and consideration of wildlife breeding periods. More...


Chertsey WTW

This project included the construction of an additional rapid gravity filter house, slow sand filter refurbishment works, interconnecting site pipelines and new filtered water pumping station. More...

Bough Beech WTW

This project comprised the design, supply, installation and commissioning of the plant together with associated temporary works. More...