Premium Roofing
& Cladding Specialists
Quality roofing and cladding solutions across Sydney.
Licensed. Insured. No shortcuts.
Built To Last. Driven By Excellence.
Projects completed
across Sydney
Years of roofing
& cladding experience
Our Services
Roofing &
Cladding
Experts
Complete roofing and construction services for residential, commercial and strata.
View All Services
Why Choose Ontra
We Don't Cut Corners.
We Raise Standards.
We take pride in delivering exceptional results that last. Our core values are at the heart of everything we do.
Integrity
Honest advice. Clear communication. No hidden agendas.
Quality
Premium materials. Expert workmanship. Built to last.
Reliability
On time. Every time. You can count on us.
Safety
Safe work sites. Protecting our team and our clients.
Accountability
We own our work. If it's not right, we make it right.
Most Recent Project
Architectural Roofing
& Cladding
A closer look at our latest metal roofing and bespoke cladding work, from precision-folded curves to integrated skylights.
Latest Project · Sydney
Roofing & Cladding
Latest Project · Sydney
Skylight Detailing
Latest Project · Sydney
Curved Cladding
Latest Project · Sydney
Precision Installation
Latest Project · Sydney
Custom Metalwork
Recent Projects
Built Different.
Built To Last.
Commercial Roof / Gutters & Downpipes
Rouse Hill, NSW
Re-roof / Re-gutter & Downpipe
Kingsford, NSW
Commercial Cladding
Haberfield, NSW
Tile to Metal Reroof
Castle Hill, NSW
Custom Home
Gledswood Hills, NSW
Strata Roofing
Gladesville, NSW
Client Reviews
Trusted By
Sydney Homeowners
Based on client reviews
“We replaced our tired tile roof with Colorbond and Ontra made it painless. On time, clean site every day, finished ahead of schedule. Worth every cent.”
Daniel M.
Mosman, NSW
“Professional from quote to handover. The team protected our garden, communicated daily, and the new roof looks incredible.”
Rob Wensing
Sydney, NSW
“Ontra clad the front of our home and it completely transformed the street appeal. Spotless workmanship and great advice on colour selection.”
Sarah T.
Randwick, NSW
“Called them after a storm leak. Same-day response, fixed it properly, and a fair price. Will use them for the full re-roof next year.”
James K.
Chatswood, NSW
“New gutters and downpipes installed in a day. No mess, no surprises, and they explained every option. Highly recommend.”
Priya & Amit L.
Castle Hill, NSW
“We use Ontra for three of our buildings. Reliable, fully documented, and they work around our tenants. A genuine commercial-grade contractor.”
Strata Manager
Eastern Suburbs, NSW
Our Partners
Trusted Industry
Partnerships
We collaborate with Sydney's most respected suppliers and specialists to deliver uncompromising quality on every project.
