Structural Engineering · Sydney

Retaining Walls.
Engineered Right.

Sydney's trusted structural engineers for retaining walls. We design walls that are safe, compliant, and built to last, backed by certified engineering documentation.

Syd.
Local Experts
500+
Projects Delivered
100%
Council Compliant
48hr
Quote Turnaround
Specialties
Timber Retaining Walls Post & Sleeper Retaining Walls Sandstone Log Retaining Walls Core-Filled Masonry Retaining Walls Dincel/AFS Retaining Walls Clay Brick Retaining Walls Piled Retaining Walls Timber Retaining Walls Post & Sleeper Retaining Walls Sandstone Log Retaining Walls Core-Filled Masonry Retaining Walls Dincel/AFS Retaining Walls Clay Brick Retaining Walls Piled Retaining Walls
Why Choose Us

The Engineers
Builders Trust

We've built our reputation on straightforward advice, fast turnarounds, and walls that pass every inspection first time.

Certified & Council-Ready
Every retaining wall design comes with full engineering documentation, stamped drawings, and certification packages that satisfy council and certifier requirements, no back-and-forth.
Get a Free Quote
Fast Turnaround
We know build schedules don't wait. Our streamlined process means you receive a detailed quote within 48 hours and completed drawings well ahead of your construction timeline.
Get a Free Quote
Direct Engineer Access
You deal directly with our engineers. Get real answers tailored to your project's needs in a streamlined manner.
Get a Free Quote
What We Design

Retaining Wall Types
We Engineer

From simple residential garden walls to complex commercial earthworks, we engineer the right solution for your site and soil conditions.

Discuss Your Wall
01
Core-Filled Masonry Retaining Walls
The most durable solution for high-load applications. We design reinforced concrete masonry retaining walls for residential, commercial, and infrastructure projects.
High LoadResidentialCommercial
Get a Free Quote
02
Timber Retaining Walls
Cost-effective for low height landscaped walls. We specify the correct timber, grade, treatment, posts, sleepers and backfill to ensure durability and compliance.
ResidentialCost-EffectiveLow Height
Get a Free Quote
03
Sandstone Log Retaining Walls
Engineered for aesthetics and structural performance. We design dry-stacked sandstone walls that complement Sydney's heritage streetscapes while meeting modern structural standards.
HeritageAestheticResidential
Get a Free Quote
04
Basement Walls & Shoring
For challenging sites with limited space, poor soils, or high retained heights and basements. The most suitable retaining wall system is selected and designed to handle complex geotechnical conditions.
Deep ExcavationComplex SitesBasements
Get a Free Quote
05
Post & Sleeper Retaining Walls
We provide compliant, cost-effective retaining wall design solutions for residential developments and landscaping projects where timber retaining walls are less suitable due to increased retained heights and durability requirements.
Cost-EffectiveDurable
Get a Free Quote
06
Retaining Wall Inspections & Reports
Existing retaining wall showing signs of bulging, cracking or leaning? We conduct structural assessments and produce engineering reports for homeowners, insurers and council requirements.
AssessmentReportsCouncil
Get a Free Quote
Syd.
Local Experts
Sydney-based engineers with deep knowledge of local councils, soils, and site conditions.
500+
Projects Delivered
Residential to large-scale commercial retaining wall projects across Greater Sydney.
98%
First-Pass Approval
Our documentation is thorough, the vast majority of our designs pass council review first time.
48hr
Quote Turnaround
We respect your schedule, detailed quotes delivered within two business days, guaranteed.
How It Works

From Brief to
Certified, Simply

A clear, four-step process so you always know where your project stands.

01
Free Consultation
Tell us about your site, wall height, soil type, and what you're trying to achieve. We'll advise on the best wall type and provide a fixed-fee quote within 48 hours.
02
Site Assessment
Where needed, we conduct a site visit and review geotechnical data to fully understand the conditions driving your wall design, no assumptions, no shortcuts.
03
Engineering Design
Full structural calculations, detailed drawings, and a design certificate, everything your builder and council need to move forward with confidence.
04
Construction Support
We stay available during the build to answer builder questions, respond to RFIs, and carry out inspections so your wall is built exactly as designed.
Get a Free Quote

Need a Retaining Wall Engineered?

Whether it's a simple residential boundary wall or a complex excavation, get a fixed-fee quote from a certified structural engineer within 48 hours.

Get in Touch

Let's Talk
About Your Wall

Tell us about your project and we'll come back with a clear scope and fixed-fee proposal, fast. No obligation, no fluff.

Phone
Email
cam@pirieconsulting.com.au
Location
Sydney NSW 2000

Request a Free Quote