In Dunedin, retaining walls are typically priced per lineal metre. As a planning guide, many projects cost around $350 to $750 per linear metre, depending on the wall type and site conditions. For consistency with our sitewide snapshot, typical concrete works are often referenced at $90 to $200 per square metre as guidance only. Final pricing is set by independent contractors after a site visit, a measured scope, and confirmation of access and ground conditions. When comparing retaining wall costs in Dunedin or prices per metre online, consider the ranges as indicative until the site is assessed.
Costs are shaped by the wall type and height, excavation and spoil handling, footing requirements, drainage and backfill design, access for materials and machinery, curves or terraced layouts, finish choices, and any reinstatement requirements. Low garden retainers with straightforward access typically sit toward the lower end, while taller, engineered, or feature walls trend higher due to additional materials, labour, and programme time.
Dunedin’s terrain means preparation matters. Steeper sections may require benching and careful cut-to-fill, while soft or reactive patches may require deeper footings or undercutting with a compacted basecourse. Tight side access, rear sections, or steps can slow production and may necessitate smaller plant or material handling solutions. Weather windows, protecting exposed cuts, and safe staging are also taken into consideration when scheduling.
Material selection drives both appearance and budget. Timber retaining walls are often a value‑forward option for residential landscaping. Concrete block (also known as cinder block) and poured concrete offer clean lines and a long service life, with options for plastering or painting. Gabion baskets provide a rugged look with inherent drainage, while natural stone offers a premium, layered finish. Allow for proper drainage behind the wall, including free‑draining backfill, filter fabric, and outlets. Sealing or stain treatments are optional extras for some finishes.
To compare quotes fairly, ask each contractor to price the same scope and look for clarity on the following:
- GST status (inclusive or exclusive)
- Wall type, target height and length, footing details, and any engineering or PS1 requirements, including whether Dunedin City Council consent is anticipated
- Drainage specification, including backfill type, filter fabric, and weepholes or outlets
- Access assumptions, excavation volume, spoil removal, and reinstatement of lawns, gardens, or paths
- Finish details such as caps, plaster or paint systems, cladding, or textured liners
- Programme assumptions and any weather or access allowances
Typical timeframes vary depending on the scale and access. Smaller residential walls typically involve 1 to 2 days for excavation and foundation work, followed by 1 to 3 days for wall construction and staged backfilling. Poured concrete walls require formwork and steel placement before a dedicated pour day, followed by stripping and tidy-up afterwards. Decorative finishes, plaster, and paint can add return visits. Your contractor will advise on curing and hold periods before backfilling or completing reinstatement.
Ready to compare options? We coordinate multiple competitive quotes from vetted retaining wall contractors in Dunedin, matched to your wall type and site conditions. Your enquiry details are shared only with selected contractors to arrange a site visit and prepare proposals. Start now, complete our CONTACT FORM or call 03 242 3176.