About Us.
Quality-Driven Refurbishment
We restore retail spaces with precision, consistency, and attention to detail — every project meets our high standards.
Fast & Reliable turnarounds
Centworx is built on efficiency. We minimise downtime so your store can get back to business sooner.
End to End Project Support
From planning to final handover, we manage every step to ensure a smooth, stress‑free refurbishment experience.
Founded in 1986 as R.H. Gillard & Sons Pty Ltd by award‑winning builder Ron Gillard Snr., our business was built on a reputation for exceptional craftsmanship, strong leadership, and uncompromising standards. From its early years, the company earned recognition for delivering high‑quality builds for discerning clients across Sydney.
After completing his apprenticeship under his father’s guidance, Ron Gillard Jnr. expanded his expertise within the commercial construction sector, progressing from site management into senior project management roles. His experience includes the successful delivery of large‑scale commercial projects and complex refurbishments requiring precision, structure, and accountability.
In 2016, Ron re‑established the family business under its current name, Centworx, continuing the legacy of R.H. Gillard & Sons. With over 30 years of hands‑on and project management experience, Centworx delivers commercial projects defined by integrity, attention to detail, and a collaborative approach—providing confidence at every stage of delivery.
“Centworx applies a strong understanding of the building process, enabling the company to consistently add value for both projects and clients. The team possesses comprehensive construction knowledge, a sound understanding of the National Construction Code, and extensive experience in construction management, including cost control, quality assurance and programme management.”
Jacob Barsoum, Development Manager, HMC Capital
“As the Principal Certifying Authority working with Ron Gillard on several projects, he has demonstrated his knowledge and competency in all aspects of construction including: 1. Interpret, implement and comply with Building codes and Standards 2. Interpret, implement and comply with approvals, conditions, plans, specifications 3. Resolving onsite technical/operational issues 4. Ensuring all required inspections and tests are conducted throughout the project”.
Peter Hofstetter, Director, Certis NSW
“Incredible service from start to finish. The team at Centworx are experts at what they do. Professional, reliable, and highly skilled, their attention to detail is what really sets them apart. I can’t recommend Centworx highly enough.”

