Interlock driveways are one of the most durable and visually appealing options for homeowners in Toronto and the GTA. Known for their versatility, elegance, and ability to withstand heavy traffic, interlock driveways can last for decades when installed and maintained properly.

But naturally, homeowners often ask: how long does an interlock driveway really last? The answer depends on several factors, including the quality of materials, base preparation, installation techniques, and regular maintenance.

In this guide, we’ll explain the typical lifespan of an interlock driveway, common factors that affect longevity, and tips to extend the life of your investment. Whether you’re planning a new driveway or maintaining an existing one, understanding these key points can help you avoid costly repairs and keep your driveway looking perfect for years to come.

How long does a professionally installed interlock driveway usually last in Toronto/GTA?

A professionally installed interlock driveway in Toronto and the GTA can last 25 to 30 years or more when it’s done correctly and maintained over time. In many cases, we see interlock driveways that are still performing well after 30+ years, especially when high-quality materials and proper base preparation were used from the start.

Unlike poured concrete or asphalt, interlock systems are flexible. This flexibility allows the driveway to move slightly with freeze-thaw cycles, which are common in the Canadian climate, reducing the risk of major cracking. Regular maintenance—such as re-leveling, joint sand replacement, and occasional sealing—can significantly extend its lifespan and keep it looking great for decades.

What are the most common reasons interlock driveways fail or get damaged?

The most common reason interlock driveways fail is Canada’s harsh climate, combined with poor installation practices. Freeze-thaw cycles, moisture penetration, and ground movement put constant stress on the driveway. However, weather alone is rarely the main issue—it’s how the driveway was installed to handle that climate.

A major factor is the installation process, which can vary greatly from one company to another. This is also why you see large price differences between contractors. Key elements that affect durability include:

• Base preparation and compaction
• The type of materials used, such as screening or HPB (High Performance Bedding)
• Proper drainage and grading
• The quality and type of interlock pavers selected

When shortcuts are taken—especially with compaction or base materials—the interlock may start to sink, shift, or separate over time. Choosing the right interlock product also matters, as not all pavers perform the same under heavy vehicle traffic and Canadian weather conditions.

So, how long does an interlock driveway last? When installed properly, an interlock driveway in Toronto or the GTA can last 25 to 30 years or more. Its longevity comes from the flexibility of the system, which allows it to handle Canada’s freeze-thaw cycles far better than poured concrete or asphalt.

However, the lifespan of an interlock driveway is heavily influenced by how it is installed. Base preparation, proper compaction, the choice between materials like screening or HPB, and the quality of the interlock pavers all play a critical role. This is also why pricing can vary significantly between contractors—cutting corners during installation often leads to premature sinking, shifting, or joint failure.

Choosing the right materials and working with experienced professionals ensures your interlock driveway not only looks great but performs exactly as it should for decades. A well-built interlock driveway is not just a surface—it’s a long-term investment in durability, functionality, and curb appeal.