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Building Inspection Services

Retaining Wall Inspection

Retaining wall inspections are done by STA engineers as ‘competent persons’ approved by a building certifier. We inspect to ensure that the wall is built in accordance with AS4678 and the retaining wall design, as approved by council. If an unexpected problem is encountered on site, we can quickly problem solve with the builder, even issuing a revised design to keep the job on track.

Our inspection process involves:

  • Booking confirmation via SMS
  • During inspection, elements are checked and issues noted
  • Issuing a Live Summary Report via email to builder, landscaper, and other nominated persons
  • Certification issued once the required standards are met

Bookings can be made with as little as 24 hours’ notice, and we turn around final documentation within 48 hours (once conditions are met).

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When is it required?

Booked with us by the builder, retaining wall inspections are done prior to backfilling behind the wall and may also be done prior to concrete footing pour. We either approve the work as is, give a conditional pass (when minor items need resolution prior to certification), or fail the inspection and the work has to be done again.

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What's included?

Our retaining wall inspection involves checking all elements to confirm work has been carried out in accordance with the engineered design, AS4678, and other relevant standards. Checked elements include:

  • Height, length, and configuration
  • Degrees from vertical
  • Wales and posts
  • Piers/steel reinforcing
  • Surcharge loads applied above the wall (roads and buildings)
  • Distance from other structures
  • Distance from existing services
  • Footings — concreting or heel and toe size/placement
  • Wall batter or setback
  • Materials such as piers, steel reinforcing, concrete sleepers or posts, and timber sleepers (pre-treated)
  • Drainage/pipes
  • Backfill, including type, quantity, and placement
  • Access for monitoring and maintenance

Full service engineering

When you work with a full-service engineering company, you get a smoother experience and broader expertise. Save time and money by also using us for the initial retaining wall design.

Onsite updates

You get information about your inspection right away — even while our inspector is still onsite. Our outcome reports include live markup photos for easy identification of conditional requirements, with all documentation delivered digitally for rapid reports.

Clear communication

With STA, you’re never left in the dark about your appointment time or results. From the initial booking until your certification is issued, we keep you informed at every step of the way.

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One engineer for all your needs

Every building project is different, requiring a combination of engineering disciplines. From bottom to top, our engineers can work on soil testing and foundations, all the way up to frame and roof truss design and even inspections. We believe these shouldn’t be thought of as separate, unrelated services.

Whether you’re renovating, extending, building a brand new home, or putting in a pool, you can gain significant benefits from understanding (in advance) the full range of engineering services you might need — and from using the same engineer for all these services.
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Key advantages of integrated services

STA is a one-stop engineer with a service range that delivers three key advantages:

  • Save time and money

Pre-planning your engineering needs means you won’t have to keep re-booking an engineer when you need a particular service. It creates efficiencies that cut service times and save you money by pulling together the services you’ll need, at a lower overall price.

  • Enjoy engineering continuity

With all your engineering done by a single organisation, your consultants tap into a deeper knowledge of the site and the project, which leads to high quality outcomes, with more opportunities for innovative solutions.

  • Less risk, more reliability

While STA always takes legal responsibility for its engineering designs, an up-front engineering services package makes it easier to trust our work with a strong mutual commitment, and reduced risk of potential interruption or delay.

How it works

Engineering consideration – We help you think about your project in engineering terms. What specific services might you need?
Packaged plan – We develop a plan that packages up all the engineering services you need for your individual home or build project.
Prescheduled services – With each service pre-scheduled, we can work more closely with you over the life of the project.

Explore our engineering services

Whether you’re a builder, developer, architect or owner, STA has the size and range to cover every possibility, with a team of experts in every engineering specialty. Explore more specific info on:
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More on building inspections

Get engineering compliance inspection services with live updates from the site so you are informed on any defects (and how to fix them) right away.
More about our building inspections
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