UK - Conor McCloskey (UK) 0044 7967 445556
Gerald McCloskey (N.Ireland) +44 (0)7823 526240 / +44 (0)28 37511911
(R.o.Ireland) 00353 87 6897908

Moling is a trenchless method used to lay pipes.

During the moling process, a pneumatically-driven machine known as a mole forces its way through the soil along the desired path of the pipe.

Moling avoids the need to dig a trench and can be used to lay pipes for water, gas and electricity.

Sizes from 20mm to 160mm.


Aurger boring under a main road in Co. Cork, Ireland. The purpose of the duct is carry the electrical cables for an ESB windfarm.

Auger Boring is a jack and bore trenchless method of installing pipe, generally steel. A pit is dug either side of the work area to allow for plant machinery used in the boring procedure. This method uses an Auger inside the steel casing, which reduces the likelihood of ground settlement from the excavation. As the Auger is drilling the excess soil is transferred out of the pipe and the steel pipe remains in situ . Once installed the next length of pipe is welded to the end and the process continues until all the pipe is installed. This method is a popular solution to install utilities where settlement is an issue, like railways, highways etc.

GMAC Utilities Ltd are setup to to install 323mm , 406mm , 508mm and 601mm pipe.



To compliment our Directional Drilling and trenchless techniques, we operate a range of automatic / semi-automatic fusion welders and electrofusion.

This is a method of replacing existing defective metallic, plastic, clay or cement pipes with new PE Pipe, usually with the same or a larger diameter pipe.

This is the safest method of excavation around power cables and other utilities without the risk of damage to the utility or danger of injury to the operator.

 The excavated material is contained in the vehicle rather than deposited on the side of the trench which is important in confined spaces.

This method of excavation has been used extensively on the Dublin City Light Rail Service Diversions Project and is a safety requirement by many UK Utility Companies.

Recent job to vacuum excavate between multiple utility services opposite Trinity University Dublin for the Luas light rail project