Get it wrong and you’re looking at council notices, contaminated land, soggy paddocks and a five-figure rebuild. Get it right once with the proper crew and it runs quietly for 30+ years.
Sized, sited and installed to your local council's on-site sewerage code — first time.
Soil category, slope, household size and water table all factored in before a single pipe is laid.
Lifetime workmanship guarantee on every install. Issued in writing on your invoice.
End-to-end septic tank installation Brisbane councils approve first time. Sized properly for your land and household.
Aerated Wastewater Treatment Systems for sensitive sites and modern homes. Quieter, cleaner, code-compliant.
Scheduled or emergency pump-outs that keep your system flowing and within council requirements.
Full tank cleaning, scum & sludge removal — extends system life and protects your drain field.
Cracked tanks, blocked outlets, failed pumps, soggy fields — diagnosed and repaired properly.
Correctly sized and laid drain / disposal fields engineered for Brisbane soils and rainfall.
Pre-purchase, compliance and condition reports with photos and written findings.
Bring an older system up to current standards — capacity, treatment and irrigation.
Council paperwork handled — applications, inspections and final certificates.
Full system swap-outs for failed or end-of-life tanks, with minimal disturbance to your block.
System lifespan, done right
Why Brown Arm Boys
We handle the application, soil testing and final certification — you never deal with council.
QBCC licensed drainers and full public liability on every job, every time.
Every install backed for life. In writing on your invoice — no fine print.
We know the soils from Samford to Dayboro to the Redlands acreage belt.
Tracked machinery operated carefully, lawns reinstated, no mess left behind.
Fixed written quotes after a proper site visit — no surprise variations.
Our 3-step process
On-site visit, soil and land evaluation, household sizing and existing system review. Honest advice on what your property actually needs.
We engineer the right system, lodge the council application and manage every inspection. You sign — we handle the rest.
Precision excavation, certified install, full commissioning. Ongoing service, pump-outs and a lifetime workmanship guarantee.
Education
The right system depends on your land, soil, household size and council zoning. Here’s the honest, plain-English breakdown.
Proven, low-maintenance gravity system. Ideal for larger blocks with suitable soil.
Modern aerobic treatment producing high-quality effluent safe for surface irrigation.
Not sure which one? That’s literally our job. Book a site assessment — we’ll tell you the right system for your land before you spend a cent.
AWTS specialists
AWTS units give you treated water you can safely irrigate above ground — perfect for smaller acreage, sloped sites, or council areas where a traditional trench field isn’t approved. We install, commission and quarterly-service all major brands.
Real Brisbane acreage reviews
“We had an issue with water not draining away from our property during heavy rainfall. Gave these guys a call and they were able to fit us in within 24 hours. Noah was thorough and addressed our concerns. They booked in our drainage rectification promptly and we are feeling a lot more confident for when the next deluge hits. Highly recommend.”
Brisbane, Brisbane
“Noah from Brown Arm Boys came to our home last week and took the time to explain everything clearly. Friendly, efficient, and genuinely cares about doing the job properly. We’ll definitely be using Brown Arm Boys again.”
Brisbane, QLD
“Just want to give a huge thanks to the boys from Brown Arm Boys! Service is great, on time, and very friendly. Will definitely refer them to anyone that asks.”
Brisbane, QLD
Where we install
Acreage suburbs & outskirts
Valley acreage specialists
Rural & semi-rural
Logan Village · Jimboomba
Mount Cotton · Redland Bay
Karalee · Karana Downs
Rural properties
Western acreage
FAQ
Yes. Any new septic tank installation, replacement or major upgrade in Brisbane needs council approval. We prepare the application, arrange soil testing, lodge it on your behalf and manage every inspection through to final certification.
Most septic tank installations run 2 to 5 days on site once council approval is through, and AWTS installs are similar. Approvals typically take a few weeks depending on council, and we manage that whole process for you.
Every 3 to 5 years for a traditional septic tank, depending on household size and tank capacity. AWTS units need quarterly servicing instead. We run scheduled reminders so you never have to think about it.
A traditional septic tank is a simple gravity system that disperses effluent through a trench field, ideal for bigger blocks with good soil. An AWTS aerates and treats wastewater to a higher standard so it can be irrigated above ground, which councils prefer on smaller or sensitive sites. Our installers will tell you straight which one suits your block.
Often, yes. Cracked lids, failed pumps, blocked outlets and soggy drain fields can usually be repaired. If the tank itself is at end of life, we’ll show you why and quote a septic tank replacement honestly.
Yes. Every septic tank installation carries our lifetime workmanship guarantee, in writing on the invoice.
Yes. Brown Arm Boys are QBCC licensed drainers (licence no. 15512139) and fully insured, covering septic systems and AWTS installation across Brisbane and SEQ.
It depends on soil, site access and system type. A traditional septic tank installation costs less upfront, an AWTS costs more but suits smaller blocks. After a free site assessment you get a fixed written quote covering the tank, install and council paperwork, so the price you approve is the price you pay.
If you’re anywhere across Brisbane’s acreage belt, almost certainly: Samford, Dayboro, Pullenvale, Brookfield, Logan Village, Jimboomba, Mount Cotton, Redland Bay, Karalee and everywhere between. Local septic installers, not a franchise call centre.
We supply and install. Your quote covers the right tank or AWTS unit for your site, delivery, excavation, installation, commissioning and council certification. One crew, one invoice.
Yes, it’s one of the most common upgrades we do. We decommission the old tank to code, install the new AWTS and handle the council side. Usually done within a week on site.
Call directly or submit your details — we’ll be in touch within 15 minutes during business hours to book your free site assessment.
