Guides / Concrete vs Pavers
For most Toowoomba driveways a properly engineered concrete slab is the more durable, lower-maintenance choice, but pavers have one genuine advantage on the reactive black soil out here: laid on a flexible bed they ride ground movement rather than cracking, and any that go uneven can be lifted and re-laid. The honest answer is that it turns on your budget and, more than anything, on how well the base is built.
The real difference is not the look, it is how each one behaves when the ground underneath moves. A concrete driveway is a single rigid slab. Done properly it is one continuous, load-spreading surface that will carry vehicles for decades with almost no attention. The catch is that a rigid slab has to stay put or crack, so on ground that moves it has to be built to resist that movement.
Pavers are the opposite. Dozens or hundreds of individual units sit on a compacted flexible bed of road base and sand, held together at the edges. Because they are not locked into one rigid sheet, they can flex a little as the ground shifts, and if a patch settles or lifts you can pull those pavers up, fix the bed and re-lay them. That flexibility is their strength, and it is also where the extra maintenance comes from.
This is the part that matters most in Toowoomba. Much of the city and the western plains sit on deep, highly reactive black cracking clay that swells when it is wet and shrinks hard when it dries, and that movement is exactly what puts a driveway under stress. On that ground the two options behave very differently.
A concrete slab poured to a standard formula on reactive black soil will very likely crack, because the ground moving underneath is stronger than the slab. The fix is not to avoid concrete, it is to engineer it: footings taken down past the worst of the movement, more steel, and often a stiffened or waffle raft so the slab stays rigid and rides the ground as one piece. Built that way, a concrete driveway is the most durable option you can put down out here. Pavers on a flexible bed take a different tack: instead of resisting the movement they flex with it, and when the surface eventually goes a little uneven, which on bad soil it can, individual pavers are lifted and re-laid rather than the whole thing being broken out. So the honest trade-off is this. A cheap formula slab on black soil is the worst choice of the three. A well-built paved driveway rides the movement and can be reset. A properly engineered concrete slab costs more up front but is the durable, low-maintenance long-term answer. Our guide on why concrete cracks in Toowoomba explains the soil in more depth.
On up-front cost, plain concrete is usually cheaper to install than a quality paved driveway, because pavers carry a lot more hand labour laying each unit. The gap narrows on reactive soil, though, because the engineered base a concrete slab needs adds to its cost. Our driveway cost guide sets out the indicative concrete ranges.
On upkeep the slab wins day to day. A sealed concrete driveway needs very little: an occasional clean and reseal. Pavers ask for more over the years, with weeds and moss to keep out of the joints, jointing sand to top up, and the odd paver to reset if it settles. The counterpoint is repairs: if a slab does crack, fixing it is more involved than lifting a handful of pavers. Neither is wrong. It is a question of whether you would rather pay more up front for a set-and-forget slab or keep the option to reset the surface later.
If you want the durability of concrete with the look you are after, you have options within it. Plain grey is the value pick, exposed aggregate adds texture and grip, and coloured or stencilled decorative concrete can be patterned to resemble pavers without the joints. Whichever you choose, the driveways page explains how the slab is built for black soil.
The right call depends on your block and your ground, and the only way to know is to have someone look at it. Call 0482 392 415 or send the details through the contact page and a local concreter will talk you through the durable option for your soil and give you a fixed price.
It depends on the ground. On the reactive black soil that heaves across much of the Downs, a rigid slab can crack if the base is not engineered, while pavers on a flexible bed ride the movement and can be re-lifted and re-laid. But a properly engineered concrete slab, with the right footings or a raft, is the more durable long-term fix. Pavers trade some durability for the ability to be reset.
Pavers laid on a flexible sand or road-base bed can flex with ground movement rather than cracking, and individual pavers can be lifted and re-laid if the surface goes uneven. A concrete slab is rigid, so on reactive soil it must be engineered with deeper footings or a raft to avoid cracking. A cheap formula slab on black soil is the worst of both worlds.
Plain concrete is usually cheaper to install than a quality paved driveway, since pavers carry more labour. Over the long run a well-built concrete slab needs little upkeep, while pavers can need weeds cleared from joints, sand topped up and the odd paver reset. On reactive soil the engineered base needed for concrete narrows the price gap.
Generally yes. Joints between pavers can grow weeds or moss, jointing sand needs topping up over time, and pavers can settle or lift and need re-laying. A sealed concrete slab is lower maintenance day to day, though if it cracks the repair is more involved than lifting a few pavers.