Build Up. Build Out. Stay Home.
Thoughtfully planned extensions, second-storey additions, and whole-home renovations for North Shore families.
What we do
Second floor additions for growing families
Rear extensions that improve flow, light, and space
Home full renovations as part of a large transformation
Single residence or a strategic duplex development to maximize your land’s value.
Comprehensive carpentry services tailored for both indoor and outdoor environments. With extensive experience spanning structural framing and durable retaining walls to high-end composite decking and bespoke cabinetry, our craftsmanship ensures every detail is executed with precision. Whether you are looking to enhance your outdoor living space or refine your home’s interior with custom timber work, we deliver durable, aesthetic solutions that add lasting value to your property.
Why GY & Co.
Why Homeowners Choose GY & Co.
At GY & Co., we specialise in structural renovations that allow families to stay in the neighbourhoods they love.
Our projects often involve complex planning — whether it’s adding a second storey, extending an existing layout, or reworking an entire home to function better long term.
We don’t rush projects.
We don’t chase volume.
We focus on clarity, structure, and build quality that lasts.
If you’re planning a meaningful change to your home, we’ll guide you through it — clearly and professionally.
Projects
Projects That Respect the Home — and the People Living in It
Our portfolio reflects thoughtful planning, structural understanding, and a commitment to building homes that work better over time.
Planning a Thoughtful Upgrade to Your Home?
If you’re considering a second-storey addition, home extension, or a whole-home renovation, we’d be happy to discuss whether we’re the right fit.
We take on a limited number of projects to ensure quality and attention throughout the build.
We work best with homeowners who are planning ahead and value clarity, structure, and build quality.