Broom, Aggregate, Coloured or Stamped Driveways Compared

The Short Version

  • Broomed concrete suits most driveways: it's the most affordable, tough as anything and dependable underfoot in the rain.
  • Exposed aggregate adds a little to the bill but gives even more traction, which pays off on steep or shady drives and ones that carry a lot of runoff.
  • Colour and stamping open up the most design choices, though both rely on regular resealing to survive coastal UV and salty air.
  • Skip a smooth steel-trowelled finish on any outdoor drive. It looks sharp in the sunshine and becomes slick the moment it gets wet.

Four surface options cover nearly every concrete driveway: broom, exposed aggregate, colour and stamping. Each has its own price, feel and way of ageing, yet the concrete beneath is identical. A finish only occupies the top few millimetres, and the life of the driveway itself comes from its base, its steel and how well it was cured.

Here's how the four stack up, with an eye on local conditions: drenching coastal rain, runoff pouring down steep drives, salt air along the beaches and fierce summer UV.

Comparing the four finishes

For everyday living, what separates them comes down to price, traction and how much care they ask of you.

FinishLookCostGrip when wetMaintenance
BroomSimple, no-fuss greyCheapestGoodVery little
Exposed aggregateTextured natural stoneMid to upper rangeExcellentReseal every few years
ColouredShade chosen to match the houseSlightly dearerSet by the texture belowSealer keeps colour fresh
StampedSlate, stone or paver designsDearestSet by the sealerRegular resealing

Put simply, each step down the table brings a bolder look and a bit more upkeep.

Broom finish

While the slab is still workable, we drag a stiff-bristled broom across it to create fine grooves. Australians use it on more driveways than any other finish, and it's the obvious place for most households to start. It costs the least, keeps its traction in the rain and disguises everyday grime fairly well. Lay the grooves across the fall instead of down it and a heavy Illawarra shower won't trouble it.

  • Cost: cheapest of the bunch, with a standard mix and fast finishing.
  • Grip: dependable in the rain, especially with grooves laid across the slope.
  • Appearance: tidy and functional rather than eye-catching.

Exposed aggregate

Once the concrete has firmed up a little, we wash off the top film of cement paste and reveal the stone in the mix. You end up with an attractive textured face that grips brilliantly. Locally it's the decorative finish we lay more than any other, and clients choose it as much for safety as appearance. Have a look at our exposed aggregate page for examples.

  • Grip: the stone gives tyres far more purchase than a smooth face, even on a sloping, shaded drive that's damp and mossy all winter.
  • Hides wear: tyre scuffs, leaf marks and general weathering blend into the surface.
  • Cost: above broom, but money well spent on a shady or often-wet drive.

Coloured concrete

Colour goes in either as oxide blended through the mix or as a hardener broadcast onto the surface during finishing, and the shade range is broad. Because it doesn't alter the texture, it pairs with any of the other finishes. A few questions worth answering first:

  • Will you keep up the sealing? Summer UV and sea air fade unprotected colour quicker than most owners expect.
  • Who sees it? A front driveway justifies more spend than a side run to the shed.
  • What matters most? A good base and steel always take priority over the surface.

Stamped concrete

Textured mats are pressed into the fresh surface to imitate slate, flagstone, brick or timber. It offers the greatest control over appearance and carries the highest price, both for materials and for the skilled hands needed to stamp everything before the concrete stiffens. On a hot, breezy summer's day in Wollongong that working time shrinks fast, so decorative pours in summer usually kick off early in the morning. See our stamped concrete service for more.

  • Sealer: looks and slip resistance both hinge on it, so insist on anti-slip grit.
  • Pattern choice: a deep, rough stamp grips better in the rain than a flat slate pattern.
  • Maintenance: budget for resealing from the start.

Picking the right finish for your property

Let the site guide you before the sample board does. For a local driveway, and especially a steep one or one kept damp by the escarpment's shadow, traction comes first and looks follow.

  • Where does the water go? If stormwater runs across the driveway, give grip more weight.
  • Does it get much shade? Drives beneath large trees or on the shadowy side of the escarpment can stay wet for days and turn green, so aggregate or broom is the safer pick.
  • How sunny is it? Dark tones heat up underfoot and fade sooner under strong UV.
  • Keep traction where the tyres run: on a damp drive, save decorative finishes for the borders.
  • Check colours against the house: samples change in natural light, so look at them on site.

Mixing finishes

Two finishes often suit a big driveway better than one, and they let you put the budget where visitors will notice. We'll settle the layout with you ahead of the pour, since the transitions need to be worked out beforehand.

  • Aggregate with a coloured edge: strong traction under the tyres plus a crisp border.
  • Broom with a stamped entry: keeps the bulk of the job affordable while adding a feature out front.
  • Tinted exposed aggregate: oxide through the mix, with the stone revealed on the surface.
  • One finish for the drive, another for the path: a footpath can be a little smoother than the vehicle area.

Want a hand deciding?

The best finish comes down to drainage, how much shade, rain and sun the drive sees, and how much upkeep you're happy with. Tell us about your property and we'll suggest a finish with safe footing as the starting point, then bring samples out so you can judge them in your own light.

FAQ

Questions Readers Often Ask

A broom finish, by a clear margin. It uses an ordinary mix with no additives and takes little time to finish, so most of what you pay goes into the slab itself. Exposed aggregate brings in chosen stone plus the work of washing the surface back. Colouring means oxide in the mix or a hardener worked into the top. Stamping needs extra materials and a skilled crew racing the set, so it sits at the top of the price range.

Exposed aggregate. Those raised stones give shoes and tyres a firm surface to bite into, which counts during an Illawarra downpour and on shady drives below the escarpment where moss and mould settle in. Broom grooves laid across the fall come a close second at a much lower price. With stamped concrete, grip depends on the pattern and mostly on the sealer, which turns slippery without anti-slip grit. A smooth trowelled surface is something we simply won't use on an outdoor drive.

Not structurally. The finish is just the outer skin, and the slab's life depends on the base, the steel and the curing underneath. What changes is the way each finish ages. Broomed and aggregate surfaces disguise dirt and wear well. Coloured and stamped work depends on sealer, and unsealed colour can fade within a few years under our strong sun, so these finishes look worn sooner if resealing is neglected, then brighten up again once a fresh coat goes on.

Definitely, and big driveways often look better with two finishes than one. Common combinations include exposed aggregate edged with a coloured or stamped band, or broomed concrete with a decorative section at the entry. It also lets you put the money where it's seen. The layout has to be settled before the pour, since the transitions between finishes need planning in advance rather than improvising on the day.

Exposed aggregate in most cases. Lots of local driveways are steep, especially in escarpment suburbs such as Mount Keira, Keiraville and Stanwell Park, and during heavy rain water runs down them in sheets, while shady south-facing drives turn green with moss and mould. Traction is the priority there, and exposed stone delivers the most of it. A broom finish with the grooves running across the fall rather than downhill is a solid budget choice. Colour is no problem because the texture stays the same. Stamping is possible with a deep texture and gritted sealer, but on a drive that stays damp for months, we'd want a chat with you before going that way.

Planning concrete work around Wollongong?

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