At Stronglock, we believe retaining walls should be more than just functional – they should be strong, beautiful, and built to last for generations. For over 26 years, we have proudly supplied Perth homeowners, landscapers, and builders with retaining wall solutions that combine the natural look of limestone with the unmatched strength of reinforced concrete.
Founded and operated by Mark, Stronglock has grown from a small, hands-on local supplier into one of Perth’s most trusted names in retaining walls and garden edging. What sets us apart is not just the quality of our products, but the personal service and expertise that comes with them. Whether you’re tackling a DIY weekend project or building for a large-scale development, we’re here to make sure your wall stands the test of time.
A simple process designed for strength, style, and peace of mind.

Expert advice and clear guidance to set your retaining wall project on the right path from day one.

Turning ideas into practical plans with the right materials, approvals, and preparation for a smooth build.

Bringing your project to life with precision installation and on-time delivery of durable retaining wall solutions
Posted on Robert McKennaTrustindex verifies that the original source of the review is Google. I have been using strong lock for years now, Mark is always willing to accommodate my self as a contractor, his product and pricing are unmatched and I couldn’t recommend any one else..Posted on Andrew MacTrustindex verifies that the original source of the review is Google. Great product and easy to work with. Mark gave excellent installation tips. Very happy with the retaining wall using this system.Posted on Paul DallaTrustindex verifies that the original source of the review is Google. Great service.excellent prices. And the guy running the place (Mark) is more than happy to give advice and help out.Posted on Dean SampsonTrustindex verifies that the original source of the review is Google. Great Kind Service. No hidden cost & charges. Thanks guys Aircon works Great.Posted on Tina HoworthTrustindex verifies that the original source of the review is Google. Don't bother requesting a quote. After 2 weeks waiting for a response after sending detailed information at their request, I contacted them and they said they were too busy to quote. Told me to go with another company.Posted on A BTrustindex verifies that the original source of the review is Google. The retaining wall is still standing strong despite heavy machinery used in the immediate vicinity for past several years. Mark and his team were prompt and precise. I would not hesitate to recommend and engage their services again.Posted on shane vernonTrustindex verifies that the original source of the review is Google. Good prices, good servicePosted on Linda JamesTrustindex verifies that the original source of the review is Google. They have many varieties and the prices are greatPosted on Ryan MackenzieTrustindex verifies that the original source of the review is Google. I had a wall collapse and was in urgent need of repair. Mark was there and worked around the clock to get it sorted retained for me over the Christmas break.Posted on Adam TaylorTrustindex verifies that the original source of the review is Google. Mark from Stronglock was a pleasure to communicate with. He was very knowledgeable and offered ideas we had not considered. He was always punctual and completed the job within the specified timeframe. We found his quote to be most competitive and more importantly were very pleased with the new retaining wall and fence.