Welcome to Cathic Pty Ltd - Plumbers & Gas-Fitters

Cathic is a specialised mechanical services plumbing contractor whose employees have been successfully supporting the needs of Water Authorities, Industry and Regional Australian businesses for over 30 years.

Cathic also provides Plumbing and Gasfitting services (Domestic, Commercial & Industrial) to Narre Warren South, Narre Warren, Fountain Gate, Narre Warren North, Hallam, Hampton Park, Lynbrook, Dandenong South, Berwick, Cranbourne and Harkaway as well as the surrounding suburbs.

We specialise in complex and unique pipe work such as Polypropylene (PP) and Polyvinylidene Fluoride (PVDF) amongst others.




Our capabilities include general Plumbing and Gas-fitting and we are licensed with the Victorian Building Authority. We have equipment on hand and we are certified in the following.


  • High Density Polyethylene (HDPE) Butt Welding.
  • Beta Polypropylene Homopolymer (PP-H) Butt Welding.
  • Electrofusion Welding of HDPE & PP-H.
  • Infrared (IR) Welding of Polyvinylidene Flouride (PVDF).
  • Socket Fusion Welding of HDPE, PP-H & PVDF.
  • Jointing of PVC-U & C-PVC.

We are also able to fabricate and design specialised fittings and components for all above.

We at Cathic understand ways to unearth solutions that present a more successful operating business, while resolving and mitigating environmental risks and obligations.


Plumbing, Gasfitting, Narre Warren South, Narre Warren, Narre Warren North, Berwick, Beaconsfield, Cranbourne, Clyde, Fountain Gate, Hampton Park, Hallam, Lyndhurst