About Retain by Theo

Retain by Theo was founded in 2020 after Theo spent years working on the tools and learning how Wollongong and Illawarra ground actually behaves. That hands-on experience shapes every retaining wall we build across Wollongong today, from the coastal suburbs through to the escarpment blocks inland.

Wollongong ground is demanding. Steep falls, reactive clay and heavy coastal rain put real load behind any retaining structure. We size the engineering to the site, take footings to the correct depth and build a full drainage system behind every wall as standard. A low garden terrace gets the same level of care as a multi-tiered engineered structure.

From the first site visit through to the final clean-up, you deal directly with Theo. Expect straight answers, a clear scope agreed upfront and quality materials on every job. To talk through your site in Wollongong, call 0417 661 224 for a free, no-obligation quote.