Septic Tank Servicing

SJ Allen Holdings services a wide range of domestic and commercial septic systems: 

  •  Old style coffin lid septic tank

  • Single chamber septic tank

  • Multi chamber treatment plant

Grease Trap Servicing

The SJ Allen Holdings team provide a grease trap cleaning service to restaurants, hotels, cafes and commercial catering companies including both outside chamber& under sink grease trap

Mud Sump Cleaning 

SJ Allen Holdings provides a sump and interceptor cleaning and unblocking service, we recommend regular dipping and cleaning to avoid blockages. We are able to provide a regular scheduled cleaning service for our clients. 



Portaloo Hire & Servicing

SJ Allen offers a wide range of portable toilets and servicing options for both building sites and events. We have standard long drops, flushing long drops, towable flushing portaloo's, enhanced access portaloo's and luxury toilet units. 

Portable Shower Hire

We have a range of different units suitable for a variety of events: 

  • 4 bay towable unit 

  • 2 bay portable unit 

  • 12 bay container block unit

Crowd Control Barriers

We have crowd control barriers measuring 2.2 metres long available for hire. 



Diesel Delivery

We offer home diesel delivery in the Central Otago district for home heating and equipment refuelling.


S.J Allen has the ability to undertake Hydro Excavation for the following applications — 1) Potholing 2) Service Identification 3) Open Trenching 4) Lighting Pole Installation 5) Culvert Clearing & Hydro Jetting

Commercial Rubbish Collection

SJ Allen Holdings is able to offer a commercial rubbish collection service including glass, mixed recycling, cardboard and general rubbish.