How to Prevent Common Asphalt Driveway Problems Before They Happen

Asphalt driveways are a popular choice for both homes and businesses in New Zealand. This is because high-quality asphalt surfaces are durable, smooth, and visually tidy, characteristics that make it easy for them to complement residential and commercial spaces alike.

However, this highly versatile material is not immune to everyday wear and tear. Heavy vehicle use, coupled with the country’s changing weather, can take a toll even on expertly installed asphalt driveways over time. Cracking, potholes, and drainage issues are common, and they happen when small signs of damage are left unchecked.

The good news is that many of these asphalt driveway challenges can be prevented with proper care and maintenance. Our team, Asphalt Services, is a Dunedin City Council-approved contractor, and we’ve helped many people identify common problems exhibited by asphalt driveways in NZ over the years. Here’s a list of these typical issues and what you can do to stop them from developing in the first place:

1. Cracking

Many asphalt surfaces have cracks. While these often start small, they can also quickly spread when water seeps in and weakens the underlying layers. NZ’s freeze-thaw cycles and strong UV exposure make cracks even more likely.

Here are our quick tips to prevent cracking:

• Have your asphalt driveway sealed every few years to protect it from moisture and UV damage.

• Fix small cracks early before they widen or deepen.

• Avoid using harsh chemicals for cleaning, as these can dry out and weaken the surface.

• Hire professionals like Asphalt Services for periodic inspections to catch minor damage early.

2. Potholes

Potholes are a complication caused by ignored and unaddressed cracks. These form when water seeps into the base layers, softening them and allowing traffic to break down the surface. Potholes not only look unsightly, but can damage vehicles and worsen quickly if left unrepaired.

We recommend doing the following to prevent potholes:

• Address cracks and drainage issues before they develop into larger holes.

• Ensure the base layer is properly compacted during installation.

• Schedule professional patching as soon as you notice surface depressions.

• Use quality asphalt mix and professional installation to minimise weak spots.

3. Poor Drainage

Experienced asphalt driveway installers understand the importance of proper drainage, as water is asphalt’s worst enemy. Poor drainage can cause pooling, which accelerates surface wear and leads to cracking, potholes, or soft spots. This is particularly common in driveways built on uneven ground or without proper slope design.

Our team at Asphalt Services Ltd. recommends the following to prevent drainage problems:

• Ensure your driveway is designed with an adequate slope to direct water away from the surface.

• Install drainage channels or soak pits in areas prone to water pooling.

• Keep gutters and nearby drains clear of leaves and debris.

• Have Asphalt Services conduct a free site assessment before installation or resurfacing.

4. Ravelling (Loose Aggregate)

Ravelling occurs when the small stones that make up the surface of your asphalt begin to loosen and separate. This usually happens due to ageing, heavy traffic, or exposure to moisture. Over time, ravelling leads to a rough texture and decreased durability.

Prevent ravelling by doing the following:

• Apply seal coating regularly to bind the surface and reduce wear.

• Avoid heavy machinery or sharp turns on the driveway, especially during hot weather.

• Choose high-quality materials and professional installation to ensure strong bonding.

• Sweep and clean the surface regularly to remove debris that can loosen aggregate.

5. Fading and Oxidation

Over time, the rich black colour of asphalt fades to grey as sunlight and oxygen break down the binding agents. While this doesn’t immediately affect performance, oxidation eventually makes the surface brittle and more prone to cracking.

You can preserve your asphalt driveway against fading and oxidation by doing the following:

• Apply UV-resistant seal coating every few years to preserve colour and flexibility.

• Avoid parking heavy vehicles in the same spot for long periods.

• Keep the surface clean to prevent oil or fuel spills from speeding up oxidation.

• Consider professional resurfacing when the driveway starts to show signs of extensive ageing.

6. Edge Crumbling

Driveway edges are especially vulnerable to cracking and crumbling because they’re often unsupported by curbs or proper edging. This problem can worsen as vehicles drive too close to the edge or water erodes the surrounding soil.

You’ll be able to prevent edge crumbling through these actions:

• Reinforce edges with concrete, pavers, or strong borders.

• Avoid driving or parking too close to the edge.

• Ensure water drains away from the sides rather than underneath them.

7. Soft Spots and Depression

Soft spots can appear when the underlying base layer wasn’t properly compacted or has become waterlogged. These areas sink under pressure and create uneven surfaces, which can lead to puddles and eventual cracking.

Stay free of soft spots by doing the following:

• Make sure the base layer is well-compacted during installation.

• Fix drainage issues promptly to prevent water from seeping underneath.

• Avoid overloading your driveway with vehicles or heavy materials.

• Schedule periodic maintenance with a trusted contractor to identify early warning signs.

8. Oil and Chemical Stains

Petrol, diesel, and motor oil can soften asphalt and cause premature deterioration. If spills aren’t cleaned up quickly, they can seep through the surface and weaken the binder.

Here are our recommendations to keep your asphalt driveway in good condition:

• Place drip trays or mats under vehicles that leak oil.

• Clean spills immediately with a mild detergent and water.

• Avoid using solvents that could damage the asphalt surface.

• Consider resealing the driveway to add a protective barrier against future spills.

Keep Your Driveway in Top Shape with Services

Your driveway plays a big role in your Dunedin property’s first impression, so taking steps to maintain it is always worth the effort. Whether you’re dealing with small cracks, uneven patches, or just want to keep your asphalt looking new, Asphalt Services can help.

Our experienced team provides professional asphalt installation, repair, sealing, and resurfacing for both residential and commercial sites across New Zealand. With regular care and expert support, you can enjoy a driveway that stays smooth, durable, and safe for years to come. Get in touch with us today.