With over two decades of experience, Coastline Construction is a firm of Whangarei builders specialising in constructing new homes, undertaking renovations, light commercial construction, building decks, and more.
Known for reliability, efficiency, and meticulous attention to detail, Coastline Construction consistently delivers high quality results that exceed expectations.
Whether you’re dreaming of a new home or envisioning a stunning renovation, you can trust Coastline Construction to bring your vision to life with professionalism and expertise.
Coastline Construction are builders in Northland, working in the Whangarei and Bream Bay area.
Discover our Whangarei builders’ services
Our builders in Whangarei are here to bring your construction project to life. Whether it’s a new home, a house renovation, decks and outdoor spaces, or light commercial construction – we can help you.
Our skilled team of house builders in Whangarei crafts homes that reflect your unique vision and lifestyle. With a focus on reliability, efficiency, and attention to detail, we take pride in delivering high quality homes. We’ll make the experience of building your own home an enjoyable one.
New home builders
From minor updates to complete overhauls, our skilled team of Whangarei builders navigates your renovation with efficiency and expertise. The result: home renovations that enhance both comfort and value.
Home renovations
Our skilled craftsmen can create cosy wooden decks for intimate gatherings, or spacious entertainment areas complete with pergolas and outdoor kitchens. We offer personalised design solutions and exceptional workmanship to elevate your outdoor living experience.
Decks and more
Whether it’s constructing office spaces, retail outlets, or small-scale commercial properties, we do it with a focus on efficiency and quality. We collaborate closely with clients to understand their unique requirements and deliver spaces that align with their business goals.
Light commercial construction
Our Values
Reliability is at the core of everything we do. We understand the importance of delivering on our promises and meeting deadlines consistently. You can rely on us to be dependable partners throughout your project.
With a well-organised team and streamlined processes, we complete projects promptly without compromising on quality. Our efficient methods result in the timely completion of projects, saving both time and resources.
We believe that excellence lies in the details. From the initial planning stages to the final touches, we pay meticulous attention to every aspect of the project, to ensure the finished product meets the highest standards.
Fundamental to our ethos is transparent and open communication. Clients receive weekly progress reports, fostering trust and collaboration, ensuring they feel supported and valued throughout their construction journey.
Phillip overseas all aspects of the construction projects, including quality control, meeting deadlines, and communicating with contractors.
Phillip’s construction career began in 2000 with a building apprenticeship in Kerikeri, focusing on residential buildings. He gained his National Certificate in Carpentry NZCEA in 2004.
In his career to date, Phillip has built homes in Waikato, Auckland, and Whangarei. In 2014, he became a labour-only contractor. Since then, he’s been building an average of around 25 houses per year, from laying the foundations to the final client handover.
Phillip’s favourite part of his job is starting a new project and then witnessing its fruition. He thrives on tasks that require close detail, and he’s adept at problem solving and coming up with different solutions.
When he’s not working, Phillip enjoys hunting, fishing, and spending time with his family.
Phillip Williams – Director of Coastline Construction Northland
Discover the craftsmanship and expertise of our Whangarei builders in our project gallery:














Woods Build
New build
2025






Aarts Build
New build
Completed: March 2024













Trigg Build
High-end residential build
Completed: September 2022
We recently had our two-storey home built in Mangawhai Heads by Phillip Williams from Coastline Construction Northland, who also project-managed the entire build, and we couldn’t be happier with the result. The home features high-end Metalcraft cladding, thermally modified timber, and weatherboards – and the level of finish across every detail is absolutely impeccable.
From the very start, Phillip was incredibly positive, organised, and thorough with planning and scheduling. He kept everything running smoothly between trades, always communicating clearly and staying on top of timelines. The project came in on budget and even earlier than expected, which is a testament to his professionalism and attention to detail.
Every trade he managed delivered top-quality workmanship, and it really shows in the final result. We couldn’t recommend Phillip Williams highly enough to anyone looking for a reliable, skilled, and genuine builder in the area

