Septic System Cost
5 Things You Should Know
When considering a what type of septic system you want or need there are several factors that determine your septic system cost.
1. Type of Septic System
The type of septic system you require will greatly impact the overall cost. In general, gravity-fed systems tend to be more affordable as they rely on the natural slope of the land to manage wastewater flow. However, if your property doesn’t have the necessary incline, you’ll need a pump system, which is more complex and comes with higher installation and maintenance costs. Make sure to assess the topography of your land to determine which option is more suitable and cost-effective.
2. Number of Bedrooms
The size of your septic system is directly related to the size of your home, particularly the number of bedrooms. More bedrooms typically mean more people, which leads to higher wastewater production. For a standard four-bedroom house, the dispersal area will need to be larger, which can increase installation costs. Keep in mind that even if you have fewer occupants, the system must be designed to handle the potential capacity, meaning more bedrooms equal higher costs for larger tanks and dispersal fields.
3. Septic Tank Materials
The materials used to construct your septic tank are another key factor in cost. Polyethylene (poly) tanks are generally more affordable, lighter, and easier to install. However, concrete tanks, though heavier and more expensive, are highly durable and can last longer in the right conditions. Each option comes with its pros and cons in terms of price, lifespan, and resistance to damage, so weigh the initial investment against long-term durability when making your choice.
4. Local Council Regulations
Your local council’s regulations can add to your septic system cost. Septic tank installation often requires permits, and the fees for these can vary depending on where you live. Some councils may also have specific requirements for system design, installation, or ongoing inspections, which could drive up costs. Be sure to research the regulations in your area and factor in any additional fees, inspections, or compliance costs that may apply.
5. Condition and Location of Your Land
The state of your land can play a significant role in determining how much you’ll pay for your septic system. If the land is rocky, hard to excavate, or difficult to access with heavy machinery, the installation process can become more labor-intensive, leading to higher costs. Likewise, land with poor drainage or low-lying areas may require additional engineering or treatment solutions, increasing both the complexity and price of the project.
There could be other factors that affect the Cost of your Septic System
- Sand Filter. Does your location or council regulations mean that you will need a sand filter for secondary treatment.
- Retrofit your existing septic tank. We can retrofit 80% – 90% of existing septic tanks.
Pricing Guide For Septic Systems
Septic System Cost for Residential or Rural
The cost to supply and install our Eco-Friendly Septic Tank System for the average 4 bedroom home starts at $15,000 depending on council trenching requirements.
We will come out to service your system after it has been operating for 6 months.
Ongoing Costs:
- There are no ongoing service contracts.
- Your system does not require desludging every 3-5 years.
- A 4 bedroom home will cost you approximately $20 in electricity per annum.
Septic System Cost with a Sand Filter
The cost to supply and install a Septic System with a Sand Filter for the average 4 bedroom home starts at $20,000 depending on council trenching requirements.
We will come out to service your system after it has been operating for 6 months.
Ongoing Costs:
- There are no ongoing service contracts.
- Your system does not require desludging every 3-5 years.
- A 4 bedroom home will cost you approximately $20 in electricity per annum.
Cost of a Commercial Septic System
The cost to supply and install a Commercial Septic System will vary considerable. Many factors will determine the cost however most commercial systems start at $25,000.
We will come out to service your system after it has been operating for 6 months.
Ongoing Costs:
- There are no ongoing service contracts.
- Your system does not require desludging every 3-5 years.
Do You Need A Free Quote
Please complete the form to receive a FREE Septic System Quote.
We will respond to you inquiry within 24hrs during normal business hours.
Here’s Why Over 3500 Aussie's Choose Our Truly Organic Septic System
- Established in 1996
- Over 3500 systems installed in Australia
- Single chamber with low site impact
- Low running costs. $20 per year based on a 4 bedroom house
- You will not be locked into a service contract
- 10 Year System Warranty
- No smells
- Operates 20 times faster than septic or aerated systems in processing sewage solids
- Our pumps are very quiet & only activated by demand
- Residential, Commercial & Rural systems
- Approved in VIC, NSW, SA, QLD & NT
- We help with Council Permit Applications - ‘We talk council speak’
- Suitable for all climates, desert, tropical, alpine and temperate
- Company employed installers are used to install your system
- Environmentally friendly and sustainable
- Natural liquid fertiliser is added into your soil, opening up clay soils 100mm vertically per year
- Can reduce household organic waste by up to 90%
- Many site specific effluent dispersal options
- We can retrofit to your existing system
- Aerobic system with a wind driven vent to super charge your septic tank
- Weed control – Dispose of ragwort, dock, thistle
All our residential systems come with a Child Proof Entry
People Are Talking About Our Eco-Friendly Septic System
Blue Mountains 2011
We built our new farm house in the Megalong Valley in the Blue Mountains in 2011 and installed a worm farm at the recommendation of our builder. It was considered so much better than a septic system for a range of reasons.
It has operated smoothly, and with no problems since then.
I would strongly recommend the system for anyone in our circumstances.
It is testament of the strength of the product and it’s relevance that you are still operating after 26 years.
Thank you
John A
Best Choice We Ever Made
Hello Liz. Thank you so much for your quick reply. Yes, we will send all the information to the new owner. We are sad to leave our little block, with the worm farm the best choice we ever made for the block. But due to health and family issues, we have moved to Brisbane and now dealing with the city sewerage system.
Thank you so much, especially to Alan who was so wonderful and to Doug when he installed our system. Doug loved him.
Thank you again
Myrna
The Smart Choice
We’ve had our system for over 2 years now and it’s been the smart choice of the septic systems we looked at. The running costs have been minimal and its needed no maintenance. It’s been excellent using the system day to day including the disposal of our organic waste.
Big plus for the environment as well. Highly recommend this septic tank system to anyone.
NSW Central Coast
Helen K