Williamson Contracting & Spreading Northland offer a range of cartage, earthworks and spreading services in the Northland region
Earthworks – farm drainage, shed/house sites and more
Williamson Contracting provides specialist earthworks services for farmers throughout Northland. Our experienced team handles farm drainage solutions to improve pasture performance and reduce waterlogging, along with land clearing and earth moving for new paddocks and access ways.
In addition to drainage and general earthworks we carry out house and shed site preparation. We also construct farm roads and access tracks, earthworks for culverts and crossings, and dam construction. Whether you are developing a new farm block, upgrading existing infrastructure, or preparing a site for a new home or farm building, our Northland earthworks team can provide a tailored solution that’s safe, compliant and built to stand up to local conditions.
Effluent Pond Earthworks
Effluent pond earthworks are a critical part of a compliant, efficient farm dairy effluent system. Our team provides end‑to‑end earthworks for new and upgraded effluent ponds including site preparation, pond excavation, shaping and compaction to meet regional council design and storage requirements.
We work with farmers and designers to construct effluent ponds with the right size, depth and batter slopes, and can coordinate certified design where required.
Whether you are building a new effluent pond or upgrading for compliance, we deliver accurate earthworks, quality finishes and documentation support to help you meet regional council effluent storage and discharge standards maximising long‑term farm performance
Farm Races, Tracks and Feed Pads
Specialising in farm races, tracks and feed pads we help farmers build durable, all‑weather access and efficient feeding areas that stand up to heavy use. Our services cover new farm race, track and feed pad design and construction. Every project is delivered to meet regional council requirements, helping you improve herd flow and animal health and stay compliant while protecting your pasture and the environment.
Silo Filling
We offer reliable bulk filling of in-shed feeding silos and outdoor silos across Northland, supporting a wide range of farming operations from dairy and beef to lifestyle blocks. Our specialist blower truck is purpose-built to handle bulk feed, grains, and blended rations, delivering product cleanly and efficiently straight into your silos.
Ww help you minimise wastage, reduce contamination risk, and keep your feed storage areas tidy and safe. This also cuts down on on-farm labour, as there is no need for extra handling or transfer, freeing up your team to focus on animal health and day-to-day farm management.
We service farms right across Northland, from rural and remote locations to larger commercial operations, and can schedule regular deliveries or one-off top-ups to suit your feeding programme. Our experienced drivers work with you to access your site safely, check silo capacity, and ensure each load is delivered accurately and efficiently, helping you maintain consistent feed supply all year round.
Cartage
We undertake a wide range of bulk cartage services across Northland for farmers, lifestyle block owners and commercial clients. This includes reliable transport and supply of feed such as palm kernel, grain and silage, as well as lime and fertiliser cartage, metal and limestone cartage and supply, plus all other bulk haulage requirements throughout the region. With extensive experience operating in Northland, we provide dependable, on-time bulk transport solutions tailored to local rural and commercial needs.
Truck, Bulldozer & Digger Hire
Based in Northland we provide reliable hire of modern trucks, bulldozers and diggers for residential, commercial and rural projects of all sizes. Our fleet includes versatile excavators for precision trenching and drainage, powerful bulldozers for heavy earthworks, land clearing and contouring, plus tip trucks for carting soil, metal, aggregates etc. Whether you’re preparing a building site, creating farm tracks, upgrading driveways, installing drains or carrying out large-scale rural earthworks, our fleet can tackle any project in Northland. We focus on flexible hire options and honest advice, so you get the right machine and capability for your Northland project.
Quarrying
We offer quarrying services.
Farm Roading
Williamson Contracting specialises in comprehensive farm roading solutions from initial construction through to ongoing maintenance. We build durable access roads to withstand the demands of steep country, challenging terrain and variable weather conditions.
We deliver end-to-end access road construction, including site clearing, cut and fill earthworks, drainage design and installation, formation preparation, metalling and surfacing.
We can also undertake regular maintenance including pothole repair, surface top-ups, and vegetation control.
Fertiliser Spreading
Spreading Northland works from Dargaville throughout Northland and operates four full time spreaders plus a specialised mini spreader for lighter soils and crop work. The four larger units all tow trailers and have been fitted with Ravensdown’s proof of placement technology.
Fertiliser from any supplier in Northland
Proof of placement maps
Spreadmark Certified
Variable rate application
Range of spreaders to suit terrain
Spreadmark Certified
Spreading Northland is Spreadmark certified, the voluntary quality assurance scheme administered by Federated Farmers through the Fertiliser Quality Council to ensure that fertiliser is accurately applied.
Getting nutrients in the right place at the right rate is essential for productive, sustainable farming. Our Spreadmark-accredited fertiliser spreading service combines experienced operators, precision technology and carefully maintained equipment to deliver accurate, even application across every paddock.
With independently audited systems and trained operators, we give farmers confidence that their fertiliser is being applied efficiently, responsibly and exactly where it is needed.
HawkEye
Precision spreading is about more than accurate application – it’s about having the right information before, during and after every job. Using Ravensdown’s HawkEye® nutrient management platform and Tabula technology, we help farmers plan, manage and track fertiliser applications with greater accuracy and confidence.
HawkEye® brings nutrient planning, ordering, mapping, application and reporting together in one easy-to-use platform, allowing farmers and contractors to share clear application plans and maintain accurate records. With GPS proof of placement and seamless integration with supported spreading technology, it simplifies compliance while improving nutrient efficiency.
Tabula provides real-time guidance and job visibility in the paddock, helping operators place nutrients accurately, reduce overlaps and minimise waste. Live tracking and accurate job records give farmers confidence that fertiliser has been applied exactly where it was intended.
Together, HawkEye® and Tabula deliver smarter nutrient management, improved efficiency and better outcomes for farms, contractors and the environment.
Farmers can log onto their account on the Ravensdown website at My Ravensdown. To access information such as past spreading maps farmers can log onto HawkEye.