Barriers & Bollards

It depends on the location. Bollards installed entirely on private property – on your own driveway, car park, or building forecourt – generally do not require a council permit. However, if you want to install bollards in the footpath, nature strip, or road reserve, you will need approval from your local council. Pentagon Fencing & Gates assists clients with this process and has experience dealing with all Melbourne metropolitan and inner suburban councils.

Standard in-ground bollard installation depth is typically 600 mm for light-duty applications and 900–1,000 mm for security and impact-rated bollards. The exact depth depends on the bollard type, diameter, soil conditions, and the impact rating required. In areas with soft or sandy soil common in parts of Melbourne’s west and coastal suburbs, additional concrete casting or flanged base plates are often used to achieve the required holding capacity. Our team specifies the correct embedment depth for your site conditions.

For standard outdoor use in Melbourne, hot-dipped galvanised or powder-coated steel bollards offer excellent longevity at a reasonable cost. For coastal locations – such as Port Melbourne, St Kilda, or Williamstown – where salt air accelerates corrosion, we strongly recommend 316-grade marine stainless steel or high-build epoxy powder coat over galvanised steel. For decorative heritage precincts, cast iron with a bitumen or quality paint finish is traditional and durable.

Yes. Surface-mount bollards use heavy-gauge flanged base plates that are chemical-anchored or mechanically bolted directly into existing concrete or asphalt – no excavation required. This is a popular and cost-effective option for car parks, forecourts, and areas where disruption to the existing surface must be minimised. Note that surface-mount bollards typically offer lower impact resistance than in-ground options, so they are most suited to low-to-moderate risk applications such as column protection, parking delineation, and light vehicle exclusion.

Bollard installation costs vary based on the type, quantity, ground conditions, and access requirements. As a general guide, surface-mount polymer bollards start from around $150–$300 per bollard installed, while in-ground steel bollards with core drilling and concrete fill typically range from $400–$900 each depending on diameter and site conditions. Retractable and HVM-rated bollards are significantly higher due to the complexity of installation. Pentagon Fencing & Gates provides free, detailed, no-obligation quotations — contact us for a site-specific price.