Parallel Wastewater — Septic & HSTP Installations
Complete Wastewater Installations Across South East Queensland
Parallel Wastewater is the specialist wastewater service of Parallel Plumbing & Gas. We provide complete on-site wastewater solutions for new homes, acreage properties, second dwellings and existing properties throughout the Gold Coast, Brisbane, Logan, Ipswich, Redlands and Scenic Rim.
We specialise in home sewage treatment plant (HSTP) installations, septic-to-HSTP conversions, septic tank installations and approved effluent irrigation systems. We can coordinate wastewater design, site and soil assessments, council applications, excavation, drainage, land application area installation and required inspections as part of your agreed project scope.
We’re a family-owned business with our own excavation equipment and a hands-on installation team. You’ll deal directly with the business owner, with clear communication, careful workmanship and a detailed quotation outlining what’s included.
Building a new home or replacing a failing septic system? Tell us about your property and we’ll help you work out the right next step.
Our Specialist Wastewater Services
For properties without town sewerage, we can organise new septic tank installations and replacement systems that suit the approved wastewater design and property requirements.
- New septic tank installations for suitable sites
- Replacement of ageing or failed septic infrastructure
- Concrete or poly tank options where appropriate
- Drainage connections and approved effluent disposal arrangements
- Coordination of design, council applications and relevant inspections
We specialise in complete home sewage treatment plant installations, including new builds, acreage properties and approved upgrades to existing on-site wastewater systems.
Our team can coordinate the treatment plant selection, wastewater design, relevant council applications, tank delivery, excavation, drainage connections, land application area and final inspections.
- New HSTP installations and existing plant replacements
- Suitable approved treatment systems, including Taylex where appropriate
- Excavation completed with our own equipment
- Complete drainage and approved effluent irrigation installations
- Testing, commissioning and ongoing servicing requirements explained
Septic-to-HSTP Conversions & Upgrades
If your existing septic tank or trench system is struggling, we’ll help investigate the problem before recommending repairs, a new land application area or a complete system replacement.
Where a conversion is suitable, we can coordinate the steps involved in replacing a septic system with a modern approved home sewage treatment plant.
- Review of the existing septic system and wastewater requirements
- Site assessment, wastewater design and required approvals
- Pump-out and decommissioning of redundant tanks where required
- Installation of an appropriately selected treatment plant
- New drainage, approved irrigation and required inspections
A treatment plant or septic system relies on a correctly designed land application area. We install and replace septic trenches, approved subsurface irrigation and other effluent disposal systems to suit the property-specific wastewater design.
- New septic trenches and replacement disposal areas
- Approved subsurface and surface effluent irrigation
- Trenching, pump-out lines and distribution pipework
- Ground preparation, installation and backfilling as included in the quotation
- Council inspection coordination where applicable
Not Sure Which Wastewater System Your Property Needs?
Wastewater requirements vary with the property’s soil, available land, site levels, intended wastewater load, existing infrastructure and the council’s approval conditions. No single system suits every property.
How We Manage Your Project
- Initial assessment: Discuss your site, building plans or existing septic issues and identify the likely project scope.
- Design and approvals: Coordinate wastewater design, site/soil evaluation and applicable council applications as specified in your quotation.
- Excavation and installation: Complete the required site preparation, plant or tank installation, drainage and approved irrigation works.
- Testing and inspection: Arrange required checks and commissioning, and explain relevant servicing and maintenance obligations.
Our quotations will set out the proposed inclusions, allowances and exclusions, including any requirements that depend on ground conditions or the final approved design.
Why Choose Parallel Wastewater?
- Family-owned and personally managed: Direct communication with the business owner.
- Own excavator and installation team: Practical control over excavation and workmanship.
- Complete wastewater project coordination: Design, applications, drainage, treatment plant installation and irrigation.
- Quality-focused installations: Attention to correct levels, pipework support, ground movement and approved site requirements.
- Clear and detailed quotations: Understand the project scope, approvals and exclusions before work begins.
- South East Queensland experience: Gold Coast, Brisbane, Logan, Ipswich, Scenic Rim, Redlands and surrounding areas.
Discuss Your Wastewater Installation
Planning a new home on acreage, replacing an ageing septic tank or considering an HSTP conversion? We’d be happy to discuss your property and the right next step.
Call 0409 032 954 or email admin@parallelwastewater.com.au. You can also use the enquiry form below to tell us about your project.
Our Work — Real Wastewater Installation Projects
