Residential Engineering

Retaining Walls

Retaining walls play an essential role in the protecting structures from potential damage from soil/organic material and hydrostatic pressures. They can also help add another dimension to your garden or green space and complete your outdoor look!

Retaining walls ensure that your home and bystanders are not put at risk by potential soil collapse, and can also be used to create stepped levels for landscaping purposes, or for practical reasons where soil would otherwise encroach on a road or public footpath.

A retaining wall is erected post excavation or filling an embankment to provide support. This in turn helps prevent soil from collapsing suddenly and or eroding slowly.



(as at 20/7/2020, and subject to change)
Initial Site Inspection $250 + GST ($275) This is to ensure that all loads are taken into consideration and that site conditions are as per your current site plan
Site Specific Retaining Wall Design $600 + GST ($660) Design will include approximate location of wall shown on site plan and retained heights
Inspection During Construction $250 + GST ($275) These are required prior to filling post hole with concrete and prior to backfilling wall with porous rubble. These are only required if you or your Principal Certifying Authority (PCA) wants structural certification of the wall. This can only be given by us if we inspect during construction
Site Surveys Price On Application Surveys may sometimes be required if the PCA needs them

*These prices are only available to Concrete Sleepers Online customers
**For regional areas, please contact us for a quote


Residential Engineering has been helping clients design and break ground on their homes for over 40 years, offering a full range of professional services for residential projects.

We offer geotechnical services, energy assessments, surveying, drafting and engineering. With our team of professionals behind every design, we strive to work with innovation and precision to provide the BEST for our clients.


Please use this Unique Code when contacting us for a quote:


Telephone 02 9896 5494