Construction & Retaining
Sustainable Rammed Earth
Bring Your Eco built Home to Life
Rammed earth is an ancient construction technique refined for the 21st century. By compacting natural, unprocessed mineral soils into strong formwork, we create sturdy, monolithic walls that grow stronger with age.
This sustainable architectural approach delivers exceptional thermal performance, natural weather adaptability, and superior acoustics, making it the ideal choice for modern, eco-friendly homes.
The Coastline Eco Building Advantage
Constructing with rammed earth is traditionally labor-intensive and slow. However, Coastline Eco Building has revolutionised the process through technology and innovation:
- Advanced Speed & Efficiency: Steve’s custom "Hydraulic Mixing Bucket" attached to a 12-ton digger allows us to mix and place rammed earth at an extremely fast pace, drastically reducing project timeframes and labor costs.
- Bespoke Colour Palettes: We can incorporate rammed earth into any part of your home. By blending colored metals from local quarries with natural brown and blue rock sourced directly from your own land, we create a wide variety of custom colors to fit your design.
- Structural Precision: We use advanced formwork and modern soil preparation techniques to ensure highly precise, structurally sound, and beautiful results.
Why Choose Coastline Eco Building?
A Vision for Sustainable Northland Living For almost three decades, Steve Gillespie has pursued his passion for building environmentally sustainable, affordable, and healthy homes throughout the Northland region.
- 30 Years of Passion: Led by Steve's lifelong dream, our business is built on a foundation of vision, innovation, and a deep respect for natural building methods that outlast and outperform many modern alternatives.
- Meticulous Craftsmanship: Achieving the perfect mix, proportion, and material angularity is a complex process. Our dedicated team manages every intricate detail so you don't have to.
- Client-Focused Collaboration: We value your trust, your time, and your vision. We listen to your ideas and integrate our expertise seamlessly into your architectural plans.
- Guaranteed Delivery: We back every project with a well-organised team of professionals, guaranteeing on-the-dot delivery and flawless, high-quality results.
Retaining Walls
Retaining walls play a critical role when it comes to protecting structures from the damage of soil collapse and are part of many subdivisions and general construction projects.
With a well-equipped fleet of civil works machinery here at Coastline Excavators and 40 years of experience in the construction industry, I can offer you solutions to all your retaining requirements from subdivision retaining walls to slip retaining, bank stabilisation and more.
Retaining Expertise & Deep Drilling
From small residential lot retainers to large-scale structural earthworks, I deliver fast, cost-effective, and professional solutions designed to secure your property for the future. A core specialty of my retaining services is pole hole drilling. Equipped with specialized machinery, I can drill up to 8m deep. I also hold all necessary civil machinery tickets and can easily source specialized equipment if your project requires it.
The Coastline Commitment
-- Quality, Value & Safety
At Coastline Excavators, customer satisfaction and premium workmanship are at the heart of everything I do. Backed by a lifelong family background in construction, I am dedicated to providing a safe, healthy work environment while delivering the exact results you want at a competitive price.
By offering a comprehensive range of complementary civil works, excavation, earthmoving, and drainage services, I save you the hassle of managing multiple contractors, you only ever have to deal with one reliable professional.
Service Area
I operate throughout Northland, from Whangārei and the surrounding district out to the coast and up through the Far North. Call to discuss your location and project scope.