Interlock Driveway Cost in the GTA: 2026 Price Guide
If you are pricing an interlock driveway in the Greater Toronto Area, you have probably seen quotes that vary so widely they barely seem to describe the same project. That is normal, and there are real reasons behind it. This guide breaks down what interlock driveways typically cost across Oakville, Milton, Mississauga, Burlington, and the rest of the GTA in 2026, what actually drives the number, and how to tell a fair quote from a lowball that will cost you more later.
One note before the numbers: every property is different. Treat the ranges below as market context for the GTA, not a quote for your driveway. The only way to get a real number is a site visit, and we explain what a proper one looks like at the end.
Typical Interlock Driveway Pricing in the GTA (2026)
Most professionally installed interlock driveways in the GTA land between $18 and $35 per square foot in 2026, including excavation, base preparation, and pavers. For a typical two-car driveway of 500 to 700 square feet, that puts most complete projects in the $10,000 to $22,000 range.
Where you fall in that range depends mainly on the paver you choose and the condition of what is under your existing driveway. Entry-level pavers in a standard laying pattern sit at the lower end. Large-format premium pavers, contrasting borders, inlays, and multi-tone designs push toward the top. Oversized driveways, steep grades, and complex curves add labour beyond the per-foot math.
What Actually Drives the Cost
The paver itself is usually less than half the story. The biggest cost drivers on a GTA interlock project are below the surface.
Excavation and disposal come first. Your existing driveway, whether asphalt, concrete, or old pavers, has to be removed and hauled away, and access matters: a tight urban lot in Toronto costs more to excavate than an open suburban driveway in Milton.
Base depth is the one to pay attention to. In Southern Ontario's freeze-thaw climate, a driveway needs a properly compacted granular base, typically 10 to 12 inches for vehicle traffic. This is exactly where lowball quotes cut corners, because you cannot see the base once the pavers are down. A thin base looks identical on day one and heaves by year three.
Drainage design, grading away from the house, edge restraints, and polymeric sand jointing round out the real scope. If a quote does not mention base depth, compaction, or drainage, that is a red flag, not a bargain.
Interlock vs Asphalt vs Concrete
Asphalt remains the cheapest driveway surface up front, typically a third to half the cost of interlock, but it needs resealing and rarely flatters the house. Poured and stamped concrete sits between the two, and we compare those two options in detail in our stamped concrete vs interlock guide. Interlock costs more on day one but repairs invisibly: a paver that settles or stains gets lifted and relaid, while a cracked slab is forever. Over 20 to 30 years, that repairability is the economic argument for interlock, on top of the curb appeal.
Red Flags of a Lowball Quote
Watch for quotes dramatically below the market range with no breakdown of base depth or compaction, cash-only pricing with no written scope, no mention of how the contractor handles utility locates and grading, and no warranty on settling. The most expensive driveway is the one you pay for twice.
Getting an Accurate Number for Your Property
A real quote starts with a site visit: measuring the area, checking what is under the existing surface, assessing drainage and slope, and talking through paver options against your budget. That is a fixed part of how we work on every interlock project at Conscape Canada, from our home base in Milton across Oakville, Mississauga, Burlington, and the GTA.
If you are planning a driveway for this season or next, request a quote and we will give you a real number, built on what your property actually needs.