Millner Concrete Driveways

They can, which is why we look at nearby trees before we design the job. Roots tend to grow where there is moisture and can lift and crack concrete over time, especially large, shallow-rooted trees close to a slab. Options include keeping the new concrete further from the tree, using a different layout, adding reinforcement or, in some cases, installing a root barrier. If a tree is protected or significant, removing or cutting roots may need approval, so check with the City of Darwin. We will talk through the risks and options honestly.

Concrete gains strength over several weeks, but you do not have to wait that long. As a general guide, light foot traffic is usually fine after a day or two, and cars can often use a new driveway after around a week, depending on the mix, the weather and the thickness of the slab. Heavier vehicles such as trucks, caravans or boats on trailers should be kept off for longer. We will give you specific advice for your job, as Darwin's heat and humidity can affect curing.

Mid-tone finishes generally hide marks better than very light plain grey concrete. Exposed aggregate is a popular choice in leafy suburbs like Millner, because the varied stone surface disguises dirt, leaf stains and small blemishes. Coloured concrete in earthy tones can also work well. Whatever the finish, a quality sealer makes cleaning easier and helps resist mould in the wet season. Regular sweeping to clear leaves before they break down also makes a real difference.

The slab itself may not need a permit, but the carport structure that sits on it often does. In the Northern Territory, building permits are issued by registered building certifiers, and because Darwin is a cyclone region, carports need to be properly anchored with footings and hold-downs that suit the design. Requirements vary depending on the structure and your site, so check with a building certifier before work starts. We can work from your carport plans or kit specifications to make sure the slab and footings suit.