Foundation & Retaining

We supply ACRS-certified deformed steel rods imported directly from trusted mills in China, offering exceptional quality and competitive pricing. Our NZ-made reinforcing mesh meets local compliance and comes with test certificates upon request. We also custom-fabricate stirrups, spirals, and cages to specification with a fast 24-hour turnaround.

​Our masonry range includes high-quality concrete blocks suitable for structural and non-structural applications. Whether for foundations, retaining walls, or veneer construction, we ensure consistent sizing, strength, and compliance. Products are sourced from reliable suppliers and delivered directly to site, making Three Brothers a dependable choice for all block and masonry needs.

Three Brothers supplies clean East Coast Sand perfect for mortar mixes, bedding, and general site use. We also supply Gap 7, Gap 40, and scoria for fine backfill and bedding, and Gap 40 scoria for heavy-duty drainage and structural base layers. All aggregates are available in bulk and delivered straight to your job site.

Our DPM polythene sheets act as an effective moisture barrier, preventing rising damp in concrete slabs and block walls. Supplied in various thicknesses and roll sizes, DPM is essential for code-compliant foundation work. Durable and easy to lay, it's a reliable choice for long-term protection against ground moisture ingress.

Our steel pier liners are spiral-formed tubes that provide strong, stable formwork for concrete piers. Made from galvanized steel, they prevent ground collapse, speed up installation, and ensure a clean, uniform finish. Ideal for deep foundations, they offer superior strength and reliability in all soil conditions.​

​We offer a complete range of drainage products, including WaterMark-certified PVC pipes and fittings for stormwater and subsoil systems. Our drainage coils come in socked and unsocked options, ideal for landscaping and site drainage. Filter sleeves (filter socks) are also available separately for custom applications or re-sleeving on site.

We supply high-density EPS foam pods for insulated raft foundations, designed to improve thermal performance and reduce concrete volume. Lightweight, easy to install, and compliant with New Zealand standards, our pods are ideal for residential and commercial slabs. Bulk supply and job site delivery available for efficient, large-scale pours.

We offer reliable concrete truck booking and pump truck hire services to streamline your pour days. We coordinate supply and delivery with trusted local batching plants and arrange suitable pump trucks for slabs, footings, or block fills. Our team ensures timely scheduling and competitive rates to keep your project moving.