Home extensions and additions, built to last
Need more space without leaving the home you love? Trademark Construction builds home extension carpentry across Wollongong and the Illawarra. We deliver the framing and structure that grow your home the right way.

What our extensions service includes
We carry out the framing and structural carpentry that brings an extension together.
- Ground-floor extensions and room additions
- Structural framing, wall framing and roof framing
- New door and window openings, cut in cleanly
- Cladding, eaves and weatherproofing to tie into your home
- Coordination with builders and trades on larger additions
Common problems an extension solves
A growing family, a cramped layout, or a home that is one room short of perfect. An extension adds the space you need and the value to match, without the upheaval of moving.
Why homeowners choose Trademark
We are local, licensed (291843C) and insured, and we treat your home the way we would treat our own. With Trademark you deal with Tim directly, get honest advice, and have a clean, tidy site from the first day to the last.
Read more about how we work, or see our recent work.
Extensions across the Illawarra
We work throughout Wollongong, the northern suburbs and the south coast — from Figtree to Thirroul, Corrimal to Shellharbour. If you can see the escarpment, we can build for you. See all service areas.
Let’s build something lasting.
Tell us about your project and Tim will arrange a free, no-obligation measure and quote.