G&M Contracting & Drainage Ltd is a privately owned Excavation company, and provides its services predominantly in the Selwyn District, but also extends its service to anywhere in the Canterbury Region.

G&M have been granted many jobs within the Selwyn District Council working on many of their projects in the area, and meet their strict criteria for Health & Safety and Procedures, including a Green Status on Sitewise.

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Owner-operator Mike Gollan has been servicing the wider Selwyn District for over 25 years. He continues to up-skill with ongoing training, so you can rest assured you are choosing an experienced and skilled excavation company.

We are experienced in a wide variety of jobs including:

  • Commercial Site Works
  • Demolition
  • Drainage Work
  • Driveways
  • Dust Suppression (use of water truck)
  • Drain cleaning
  • Entrance Ways
  • Grading tracks
  • Hole Drilling
  • House Foundations
  • Installing boxed culverts/ Under passes
  • Irrigation – installation of underground pipes and repair work
  • Land Clearing and Development
  • Large lawns – Preparation, Levelling and sowing
  • Locating underground services, water, sewer and stormwater
  • Mole Ploughing
  • PE Welding/Butt Welding
  • Tree and Hedge Removal
  • Water Reticulation
Demolition and house removal