Why GWE for Residential Wastewater
Get it right from day one
from concept to consent, we design wastewater solutions that perform, comply, and last.
Fix performance to meet today’s rules
we upgrade failing systems to restore reliability, efficiency and compliance with current regulations.
Clear, defensible reporting
we deliver precise, evidence-based reports that satisfy regulatory scrutiny and speed up approvals.
Powered by LIFT
we Listen, Innovate, Follow Through, and Team Up to create lasting, compliant wastewater solutions.
What we do
Our engineers design and deliver onsite wastewater systems that are practical, compliant and built for long-term performance. From new builds and renovations to upgrades, replacements and ongoing compliance, we simplify consent approvals, ensure reliable operation and give property owners confidence their systems are built right from the ground up. We provide clients with the following services.
New Builds & Renovations
For new builds and renovations, we assess your site and design fit-for-purpose, compliant onsite systems tailored to your property. We prepare and manage consent documentation and supervise installation through to final code of compliance certification (CCC), so you’re approved and operational faster.
Site/soil evaluation
System sizing & design
Consent documentation
Installation oversight
PS documentation and CCC close-out.
Learn more: New Builds & Renovations
Replacements & Upgrades
For replacements and upgrades, we recommend modern technologies, diagnose failing or outdated systems and replace those that no longer perform, we also oversee installation to ensure performance and compliance.
Key services:
Condition assessment
Technology selection
Installation support
Options & costs,
Upgrade design
Learn more: Replacements & Upgrades
Consents & Compliance
At GWE we handle the consenting process and long-term compliance. We prepare and lodge consent documentation, guide you on monitoring and renewals, and help interpret sample/inspection results with evidence-based reports that keep approvals on track and to ensure you stay compliant over the long term.
Key services:
Regulatory guidance
Annual reporting & audits
Renewals
Management plans
Sampling/inspections support
Learn more: Consents & Compliance
How we work (LIFT)
L
Listen
we start with site realities: soils, topography, water use and council rules. We scope investigations to your risk and budget.
I
Innovate
we specify fit-for-purpose systems and efficient processes that minimise disruption and lifecycle cost.
F
Follow Through
we take care of the paperwork and the process, from consent packs and producer statements to installation checks and code of compliance.
T
Team Up
we collaborate and coordinate with architects, contractors and council to keep approvals and install on track.
Frequently Asked Questions.
How big does my septic tank/system need to be?
It depends on bedrooms/flows and site conditions; we size and design to local rules and prepare the consent documentation.
How long does installation take?
Typical domestic installs run 1–2 days, subject to access and complexity.
When should I replace or upgrade?
Triggers include poor performance, damage/age, or new consent/standard requirements; we assess and advise the best option and cost.
How long does a domestic discharge consent last?
Timeframes vary by council; 10–20 years is common. Ideally renew 6 months before expiry.
What ongoing compliance is needed?
Expect monitoring/inspections and periodic reporting; we help set up sampling, interpret results, and keep your system compliant.