A pneumatic mole tunnels underground in a straight line, leaving the surface above it untouched. No trenches, no destroyed driveways, no skip hire. Just a clean new pipe pulled into place from end to end.
A pneumatic “mole” is a heavy steel torpedo, around a metre long, driven by compressed air. Aimed from a launch pit at one end of your run, it punches itself through the soil in a straight line until it pops out at the receive pit — typically 10 to 30 metres away. The new MDPE pipe is then connected and drawn back through the bore.
We mark out the bore line, check for buried services, and confirm depth and direction.
Two small pits — launch and receive — opened at either end of the run.
Compressed air drives the mole from launch pit to receive pit in a single straight bore.
The new MDPE pipe is attached and drawn back through the bore as the mole exits.
It works on the vast majority — we just need 10–30m of clear ground and reasonable access at each end. Heavily obstructed sites may need a different approach.
Very. Modern moles are highly directional, and on shorter runs the bore tracks within centimetres of the planned line.
We typically install 25mm and 32mm MDPE; both are easily molable through normal soils.
If existing services or large rocks are in the path, the mole can deviate. We always survey first to minimise the chance of contact.
Send a postcode and a couple of details — we’ll come back within the hour with a fixed price.
