Septic Tank Systems


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If you are looking to have a septic tank system installed for either your home or for commercial purposes, you can count at Dobson Excavations.
We have all the equipment and expertise to help you install a septic system. Contact us today for a quote.

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    There are a wide variety of situations where you would like a septic system installed in either a residential or commercial setting. At Dobson Excavations we have experience with nearly all situations. Before installation we will request council approval for your septic tank system. Dobson Excavations can supply, install and connect your Septic Tank Systems, if an electrician is required for install a pump then we can assist with this also.

    Where is septic tanks often used?

    Septic tank installation is common in areas where a small-scale sewage treatment system is necessary or in places not connected to the main sewage pipes. The local government and private corporations often control the public sewage system.

    The installation and maintenance cost of the public system is also high. This is why Dobson Excavations encourage septic tank installation for properties that are far from sewer lines.

    Septic tanks are crucial in the recycling of wastewater. The septic tank system uses a natural filtering process to eliminate waste. Once the septic tank filters wastewater, it ends up in the leach drain. The soil then separates the bacteria from the water. At this stage, the water is safe for re-use. This water can then replenish the water table, which benefits wildlife.

    When we are installing septic tank systems, we take steps to ensure we do it far from buildings, boundaries, water supplies like dams, and away from groundwater level. At Dobson Excavations, we take measures to ensure your environment remains safe, during and after the installation of the septic tank.

    We service the entire Perth metro area and South west, such as (but not limited to): Perth, Jarrahdale, Roleystone, Karragullen, Kalamunda, Bickley, Serpentine, Mundijong, Whitby, Hopeland, Keysbrook, Dandalup, Myara, Karrakup, Cardup, Byford, Oldbury, Wellard, Baldivis, Keralup, Rockingham, Port Kennedy, Secret Harbour, Golden Bay, Waikiki, Warnbro, Calista, Orelia, Oakford, Darling Downs, Armadale, Bunbury, Mandurah, Pinjarra, Harvey, Wandering, Collie, Boddington, Crossman, Brookton, Beverley, Dwellingup

    We also offer a wide variety of other services, such as Mini Excavator and Digger Hire, Drive Construction, Digger Hire, Trench Digger Hire, Soakwell Installation, Siteworks, Septic Tank Installation, Land Clearing, Pool Excavation, Leach Drains, Bobcat Slasher, Excavator hire, Bobcat hire, 6-wheeler tipper hire, earthworks and earthmoving contractors .

    Transparent Communication on how to make the installation as affordable as possible.

    The long-term benefits of using a septic tank make the cost of installing septic system much lower than that of installing pipes to the public sewage system. This is especially true if you need many pipes to direct wastewater to the public sewage system, which is the case in remote areas.

    Compared to the sewer system, the maintenance cost of the septic tank is low. When you are connected to the public sewer system, you will keep paying the maintenance fees, at least until you sell the property.

    When considering the cost of installing septic tank, we will consider the size of the tanks and where you are located. The material we use for the septic tank will have an impact on the cost. Dobson Excavators believe in discussing all the alternatives so that you can make an informed choice.

    For example, concrete septic tanks are more costly, but they will serve you for a much longer period than plastic systems. Concrete septic tanks will cost you more money initially, but you will be safe from future problems, such as decay and breakage.

    Septic tanks are durable.

    We recommend regular maintenance of septic tanks and leach drains for all our clients. The number of times you pump out the septic tank depends on the size of the household. For a 2-person household, you may only need to pump out the waste every four years. Households with more people will need more frequent septic tank maintenance. As your septic tank installers, we recommend the services of a licensed liquid waste collector to come to pump out the tanks.

    Proper tank care

    The durability of the septic system installation will depend on how well you maintain it. These tips will help you ensure it continues to manage the wastewater for years. When you contact Dobson Excavators to be your septic tank installers, we will determine the best location for the septic tank. Ensure the drainage system in your house is functioning appropriately.

    Identify leakages and fix them promptly to keep large quantities of water from draining into the septic tank installation. The septic tank and drain field will last much longer if they don’t get unnecessary waste flowing through the system.

    Properly dispose of food waste.

    When you allow food wastes into the septic tank, you will need to empty the solid waste from the tank more often. This will raise the cost of septic installation, especially when comparing the maintenance cost with that of the public system. It is best to use garbage when getting rid of large food wastes.

    Avoid pouring oils and fats in the drains.

    Oils and fats will not only clog the system, but they will also make it difficult for bacteria to breakdown the waste, which a critical step in ensuring the water released to the environment is safe, and not contaminated.

    Separate floor drains from the septic system.

    This is vital when the drainage system in your home is being installed. Floor drains will not only increase pressure on the septic tank, but it will also increase the likelihood of oils, sawdust and more wastes finding their way into the septic tank and cause it to clog.

    Dispose of medicines in the trash, not the toilet

    Many people assume flushing medicines down the toilet is the safest way to get rid of it, but this is not the case, especially when you are made use of septic tank installation for waste management. Antibiotics can negatively affect your septic tank, and over time, you may need to replace it, which will make turn a once cheap investment into an expensive one.

    Contact Bruce at Dobson Excavations on 0414755306 or email us at for a free quote.