How much does an interlock driveway cost in the GTA?

The typical interlock driveway cost in the Toronto area is $8,000 to $20,000 or more, according to HomeStars’ 2026 Toronto price guide. Per square foot, HomeStars’ Barrie guide puts installed interlock at $10 to $18, roughly three times its asphalt rate of $3 to $6.

Where your quote lands in that range has less to do with the pavers you pick than with the digging, the base, the old surface that has to come out and how easy your site is to work on.

These are published survey figures, not our prices. We give free quotes after a visit to the property. If you’re planning a new driveway, walkway or patio, our interlock installation page explains how we build one.

What does an interlock driveway cost in Toronto and the GTA?

Published price guides put a typical interlock driveway in Toronto at $8,000 to $20,000 or more, well above asphalt or concrete. All the figures below come from HomeStars, the Canadian home-services review site, which publishes city price guides (the Barrie one says it draws on insights from verified homeowners).

Its August 2026 guides are the most current reputable numbers we could find for the GTA and nearby Ontario.

HomeStars’ Toronto landscaping guide adds that the interlocking paver material alone runs about $5 to $7 or more per square foot. So the stone is only part of an installed price.

The rest is excavation, base gravel, sand, edging, equipment, disposal and labour.

Barrie isn’t in the GTA, but it’s the closest guide HomeStars publishes with per-square-foot interlock rates, so treat those rates as a rough guide here. The Toronto totals in the first column run higher at the top end.

Interlock vs concrete vs asphalt: which costs more, and which lasts longer?

Interlock costs the most up front, as the table above shows, and lasts the longest. HomeStars’ Barrie paving guide, updated August 2026, gives these lifespans for a driveway:

Spread over its life, interlock’s higher price looks less lopsided, and asphalt’s resealing adds to its running cost. Interlock also repairs more easily, which comes up at the end of this section.

Why interlock costs more to install

Every paver is placed by hand on a deep, carefully compacted base. Unilock’s contractor guide says patios and walkways usually need about 10 to 12 inches of base, while driveways, which carry cars, generally need 14 to 16 inches.

That means a lot of digging. Here is one worked example from Unilock’s driveway installation guide:

• Paver: 2¾ inches
• Bedding sand: 1 inch
• Base gravel: 12 inches
• Total excavation: 15¾ inches (39.5 cm)

That example uses a reinforcing grid layered into the gravel (Unilock’s DriveGrid), which the guide says cuts the base depth needed. The gravel goes in 3 to 4 inches at a time, and each layer gets at least three passes with a reversible plate compactor.

The soil that comes out usually has to be hauled away, and the gravel has to be brought in. Both show up on the bill.

Why repairability matters

If a section sinks, the pavers can be lifted, the base fixed and the same stones relaid, with a new paver swapped in for any that cracked. Our guide on why interlock sinks and how to fix it explains how that works.

What makes one interlock quote higher than another?

Two quotes for the same driveway can be thousands of dollars apart because they aren’t pricing the same work. These are the things that move the number most:

• A bigger area costs more in total, but often a little less per square foot.
• Breaking up an old asphalt or concrete driveway and hauling it away is extra work, and HomeStars lists it as a common hidden cost.
• Clay-heavy or uneven ground can need extra excavation or a thicker base. HomeStars’ Barrie guide says that adds $1.50 to $4 per square foot.
• HomeStars puts grading and levelling in Toronto at $500 to $3,000, and excavation and soil removal at $1,500 to $5,000.
• A front driveway a truck can back onto is easier than a backyard patio where everything goes through a side gate by wheelbarrow.
• Curves, borders, inlays and herringbone patterns mean more cuts and more time.
• Steps, retaining walls, lighting or sealing add to the bill.
• A permit may be needed if the work touches the curb or city boulevard (see below).

What does that look like for a real driveway?

Here is the arithmetic using HomeStars’ Barrie rates. It’s a planning tool for checking whether a quote is in a sensible range, not a price from us.

Small jobs don’t scale down neatly. A walkway still needs equipment delivered and a crew on site, so don’t be surprised if its per-square-foot price comes in above a driveway’s.

Do you need a permit for an interlock driveway?

Often you do, if the work reaches the curb or city land.

Markham

In Markham, the City says you need a permit to widen a curb cut or create a new one, and By-law 158-93 sets the size of changes you can make. The fee covers a site inspection.

Toronto, Scarborough and North York

In Toronto, including Scarborough and North York, a street work permit from Transportation Services is needed before building, rebuilding or repaving any driveway or walkway that crosses City property such as the boulevard, sidewalk or curb. The City also says:

• For new driveway or walkway construction, apply at least eight weeks before work starts.
• An application for a new, widened or relocated driveway has to include a contractor licensed by the City to do driveway paving.
• Starting without a permit can mean fines.

Utility locates everywhere in Ontario

Every dig in Ontario also needs a utility locate first. Ontario Dig Authority (formerly Ontario One Call) says public locates are free and should be requested at least five business days before digging at a single address.

When is the best time to install interlock in Ontario?

Spring and fall are usually the best times. HomeStars’ Toronto guide says spring and fall are generally best for paving and that booking outside the busy spring and summer months can sometimes save money. Its Barrie guide puts the paving season at May to October.

The joint sand matters too. Alliance Gator says its polymeric sand should go onto completely dry pavers at above 0°C, and that below that it may never set properly, so a late-November install is a gamble.

Our polymeric sand guide covers the weather rules.

Which installation mistakes cost more later?

The expensive ones are underneath, where you can’t see them once the pavers are down.

1. A base that’s too thin for cars, or a patio-depth base under a driveway.
2. Gravel dumped in one deep layer instead of compacted in thin lifts, so it settles under the first heavy load.
3. No proper edge restraint, so the outer rows creep and the joints open.
4. A slope that sends water toward the house instead of away from it.
5. Skipping the permit or the locate, which can mean fines, rework or a damaged utility line.
6. Comparing quotes on price alone without checking what’s in them.

Sealing is optional and can be added later. Our guide on whether to seal your interlock goes through the pros and cons.

Is repairing old interlock cheaper than replacing it?

Usually, if the base underneath is still sound. Interlock repair cost comes down mostly to how much area has to be lifted and whether the base needs rebuilding.

The bedding can be corrected and the same pavers relaid, so a sunken section or a few cracked stones rarely means a whole new driveway.

If most of the surface has sunk, heaved or spread, the base has failed and replacement starts to make more sense. Our interlock repair page covers lifting and levelling, and for general yard budgets see what landscaping costs in Markham.

Can you install interlock yourself to save money?

For a small garden path or a little patio, yes, if you’re willing to rent a plate compactor and haul a lot of gravel.

A driveway is different. It carries cars, so it needs the deepest base, and it often needs a permit and a locate before anyone digs. Mistakes are expensive to undo because the whole surface has to come up.

If you’d like a price for your own driveway, walkway or patio, call or text (437) 684-2535. We’ll come out, have a look and give you a free quote. You can read more about how we build it on our interlock installation page.