The Rotosonic drilling method uses 6” casing and 4,75” core barrel samplers. Which makes it capable of comfortably handling materials such as bedrock, reinforced concrete and moraine.
As much as 90% of the material we use is purchased directly from the manufacturers which allows us to set our prices as low as possible. We offer a large variety of sand, bentonite, leca clay pebbles as well as materials needed for well installation.