High Quality Underground Construction Equipment. Ditch Witch U.K. & Ireland specialise in high-quality underground construction equipment. The company is a one-stop source for Horizontal Directional Drills, Mud Mixing Systems, Mud Recycling Systems, Trenchers, Vibratory Ploughs, Saws, Skid Steer Units, ZAHN, Micro-Trenchers, Electronic Guidance Systems, Pipe & Cable Locators & Ground Penetrating Radar.