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Why Proper Concrete Preparation Matters: Avoid Cracks & Uneven Surfaces

April 24, 20252 min read

A lot of people think concrete work is all about the pour, but the truth is this: good concrete starts long before the truck arrives. Around areas like Melton, Gisborne, Diggers Rest and Brimbank, we see the same issues pop up when preparation isn’t done properly — cracks, sinking, uneven surfaces and water pooling.

If you’re planning a new driveway, path, slab or outdoor area, here’s why the prep work is just as important as the concrete itself.


A Solid Base Prevents Sinking

Every slab, driveway and path needs a firm, compacted base. When the ground underneath is soft or uneven, the concrete can move over time, creating dips, cracks or even major sinking.

A well-prepared base should:

  • Be properly excavated

  • Be compacted in layers

  • Match the correct depth for the job

Skipping this step is the quickest way to shorten the life of your concrete.


Reinforcement Gives Concrete Its Strength

Concrete is strong, but steel reinforcement is what helps it handle movement and pressure. Mesh or rebar acts like the “backbone” of the slab, reducing the risk of cracking.

Reinforcement is especially important for:

  • Driveways

  • House slabs

  • Shed slabs

  • Areas with heavier loads

When done properly, reinforcement spreads stress throughout the slab instead of letting it crack in one spot.


Correct Levels & Drainage Prevent Water Problems

Water should never sit against your home or pool area. If the concrete hasn’t been prepared with the right falls (slopes), water can pool, stain, or cause damage over time.

Good preparation includes:

  • Setting levels so water drains away

  • Checking height against doors, turf and edging

  • Ensuring smooth transitions between areas

Even a few millimetres off can lead to drainage headaches later.


Strong, Clean Formwork Makes a Big Difference

Formwork shapes the concrete. When it’s done poorly, you’ll see wavy edges, blowouts, or uneven heights. When it’s done properly, the job looks clean, professional and stands the test of time.

Good formwork should be:

  • Straight

  • Level

  • Secure

  • Checked before the pour

It’s a step that takes time, but it makes a noticeable difference in the final appearance.


Final Thoughts

The best-looking concrete jobs — the ones that stay strong and even for years — all share one thing: proper preparation. It’s the part most people never see, but it’s what guarantees the long-term performance of your driveway, slab or pathway.

At Pro Lawn & Paving, we focus heavily on preparation because it’s the only way to deliver results that last. If you’re planning concrete around your home and want it done properly from start to finish, we’re here to help.

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What Sets Us Apart

Prep & Pour operates with its own diggers, trucks, and highly skilled crew—so you’re working with the same team from quote to completion. This allows us to keep prices competitive, stay on schedule, and maintain full quality control throughout your project.

We don’t just pour concrete. We build spaces that last, communicate clearly, and make the process easy. When you work with us, you get a concreting partner that shows up on time, keeps the site tidy, and takes pride in every job.

Our Service Area

Based in Auckland, we proudly serve homeowners and businesses throughout the greater Auckland region. If you’re not sure whether we cover your suburb, just reach out and we’ll let you know.

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At Prep & Pour, your driveway can be customised to suit your style and budget. Want something that blends in seamlessly with your home’s exterior?

Choose from a range of colour pigments and sealing options for a subtle, polished finish. Looking for something a little bolder? Go for exposed aggregate with a decorative border.

Stamped patterns, saw cuts, and custom curves are all options we can incorporate depending on your vision. We work closely with you during the design process to make sure your driveway is as practical as it is visually appealing.

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