About
40+ years of building in the Cahill family. 25+ years personally.
Primebuilt is a custom home builder based in Eltham, building across the eastern, north-eastern and south-eastern suburbs and the Mornington Peninsula.

Meet Chris
Chris Cahill grew up on building sites. His parents ran a custom building business, and he was regularly on their sites from an early age. He broke a long family tradition of plumbing to start a carpentry apprenticeship, focusing on framing, and has been building ever since.
Today Chris leads a tight-knit team with a reputation for custom, high-quality homes that are built to last. Along the way he has taken on the highest home-building standards, and became a Certified Passive House Tradesperson in June 2024.
What we stand for
Integrity. Trust is non-negotiable. We hold ourselves, our trades and our suppliers to the same standard.
Transparency. We research, resolve and tell you what we find before it becomes a problem.
Communication. A custom home involves many decisions. Our process keeps them clear and in order, so it never feels overwhelming.
Commitment. We gather what we need to make a real commitment to you, then we keep it.
Performance. Homes that are built to last, healthy to live in and fit for the people in them.
People. Our clients, our trades, our suppliers and our team are what make the work worth doing.
Our story
We build as if it was our own
Start with a call
Tell us about your block and what you have in mind. If we're the right builder for it, we'll explain how Build Ready gets you to a real number.