Asphalt vs. Interlock: Understanding the Real Cost Difference for Ontario Homeowners

Which driveway costs more—asphalt or interlock?

The answer isn’t as simple as comparing quotes. In Ontario, the real cost depends on how long the surface lasts and how much maintenance it needs.

Whether you’re replacing a crumbling driveway in Vaughan or upgrading curb appeal in Richmond Hill, this decision matters. Both options work well. Both look good. But the price tags—upfront and over time—differ dramatically.

Canadian weather complicates everything. Our brutal winters and freeze-thaw cycles punish driveways constantly. A “budget-friendly” choice can become a financial headache if the material isn’t maintained properly.

Let’s break down the true costs of each option.

Upfront Costs: Asphalt Wins

When it comes to installation, asphalt is almost always cheaper.

For homeowners in Markham and Aurora with large driveways, this matters. Square footage adds up fast. Asphalt’s lower price per square foot makes a big difference on bigger projects.

Why asphalt costs less:

• Simpler installation process
• Less labour-intensive
• Faster completion time
• Materials are readily available

Why interlock costs more:

• Premium materials
• Extensive excavation required
• Detailed base preparation
• Skilled labour for proper placement
• Time-intensive installation

The price gap:

Interlock typically costs three to four times more than asphalt for the same area. That’s a significant difference.

Both require:

Proper grading to ensure water flows toward your catch basin—not toward your garage. Poor drainage destroys both materials equally.

Maintenance Costs: The Gap Closes

Here’s where things get interesting. Asphalt is cheaper to install. But it needs more maintenance to last.

Unsealed asphalt in the GTA starts breaking down within a few years. UV rays dry out the binder. Road salt attacks the surface. Cracks appear and spread.

Asphalt maintenance needs:

• Sealing Every 2-3 Years— Creates a waterproof barrier against moisture and salt
• Crack Filling— Essential to stop small cracks from becoming potholes
• Periodic Repairs — Patching damaged areas as they develop

Interlock maintenance needs:

• Sealing Every 3-4 Years— Longer intervals than asphalt
• Power Washing— Removes dirt, moss, and stains
• Re-Sanding Joints— Polymeric sand prevents weeds and keeps stones stable
• Occasional Releveling— If sections shift or settle

The maintenance math:

Asphalt needs attention more often. Interlock needs attention less frequently but costs more per service. Over 20 years, maintenance costs are surprisingly similar.

Lifespan: Interlock Wins

This is where interlock pulls ahead. It simply lasts longer.

Asphalt lifespan: 15-20 years with proper maintenance

Interlock lifespan: 25-30+ years with proper maintenance

That’s a decade or more of extra life. When you calculate cost per year, the gap between materials shrinks considerably.

What happens when each material fails:

Asphalt replacement:

• Full tear-out required
• Complete repaving
• Significant expense
• Major disruption

Interlock restoration:

• Lift only affected stones
• Re-level the base underneath
• Replace same stones
• Much less expensive
• Minimal disruption

Winter performance:

Interlock handles freeze-thaw cycles better. The joints between pavers allow natural ground movement. Stones shift slightly instead of cracking like a solid surface.

Asphalt is more rigid. It resists movement, which leads to cracking over time.

The “Cost Per Year” Calculation

Stop thinking about total cost. Think about cost per year.

Example calculation:

Asphalt:

• Installation: Lower cost
• Maintenance over 20 years: Moderate
• Replacement at year 20: Full cost again
• Total over 40 years: Two complete driveways plus maintenance

Interlock:

• Installation: Higher cost
• Maintenance over 30 years: Moderate
• Still going strong at year 30
• Total over 40 years: One driveway plus maintenance and minor repairs

When you spread costs across actual lifespan, interlock often comes out ahead. The higher upfront investment buys more years of service.

Hidden Costs Most Homeowners Miss

Beyond installation and maintenance, other factors affect your total investment.

Catch basin problems:

A failing catch basin causes driveway flooding. Water destroys the foundation of both materials. Catch basin repair is a small expense compared to a collapsed driveway entrance.

The cost of neglect:

Skip maintenance for a few years? Small problems become big ones. A $300 sealing job becomes a $3,000 repair. A $3,000 repair becomes a $10,000 replacement.

Curb appeal value:

Your driveway affects property value. In competitive markets like Richmond Hill and Vaughan, a beautiful interlock driveway can boost your selling price. Buyers see it as a luxury upgrade.

Mixed materials:

Have concrete walkways too? Don’t forget concrete sealing. Salt damages all surfaces, not just your driveway.

Which One Should You Choose?

There’s no universal answer. The right choice depends on your situation.

Choose asphalt if:

• You want the lowest upfront cost
• You have a large driveway where square footage adds up
• You’ll commit to sealing every 2-3 years
• You may move within 10-15 years
• You prefer the classic black look

Choose interlock if:

• You’re in your “forever home”
• You want maximum lifespan
• You value high curb appeal
• You prefer easy spot repairs over full replacements
• You view your driveway as a long-term investment

Either way:

Both materials need professional care to reach their potential. A maintained asphalt driveway beats a neglected interlock surface. And vice versa.

Expert Care Across the GTA

No Limit Sealing understands the specific needs of Ontario properties. We help homeowners protect both asphalt and interlock driveways against Canadian weather.

The Bottom Line

Which is cheaper? It depends on how you measure.

Lowest upfront cost: Asphalt wins clearly.

Lowest long-term cost: Interlock often wins when you factor in lifespan.

Best value: Whichever one you actually maintain properly.

A well-maintained asphalt driveway serves you well for 20 years. A well-maintained interlock driveway serves you well for 30+. A neglected driveway—either material—fails in half that time.

Contact No Limit Sealing today to discuss your project.

We’ll help you understand the true costs, recommend the right maintenance schedule, and keep your driveway looking great for decades.

Don’t let Canadian weather win. Call now and protect your investment.

For Our Driveway Maintenance Services – Click Here

Or For Our Catch Basin Repair Services – Click Here 

For Our Interlock Maintenance Services – Click Here

To Learn More About Concrete Sealing – Click Here

For Our Interlock Construction Services – Click Here

For Our Pavement Crack Filling Services – Click Here