Interlock restoration cost guide, St. Catharines 2026.

Illustrative per-square-foot ranges for the main restoration jobs in the Niagara market, plus the restore-versus-replace comparison that saves most homeowners a significant amount. Confirm scope and pricing with a licensed contractor before any work begins.

Restoring existing interlock typically costs a fraction of tearing it out and laying new. The pavers are almost always the part that lasts longest.

These are illustrative typical-Niagara ranges for 2026, based on publicly available market information. The actual price for a given project depends on the area worked, the condition of the base, how much drainage correction is needed, and which sealer finish is chosen. Confirm scope and a firm price with a licensed local contractor before any work starts.

Per-square-foot ranges by service

Service	What it covers	Illustrative range
Polymeric re-sanding	Clear old joints, sweep and set polymeric sand	$3.50 to $6 per sq ft
Cleaning and sealing	Pressure clean, then breathable sealer	$2.50 to $4.50 per sq ft
Re-leveling settled pavers	Lift, rebuild base, re-lay flat, re-sand	$14 to $22 per sq ft
Edge re-restraint	Re-secure a spreading edge or border course	$8 to $14 per linear ft

Bundled restoration packages

Package	Notes	Illustrative range
Re-sand plus clean plus seal	Most driveways without settling, one visit	$6 to $10 per sq ft
Level plus re-sand plus clean plus seal	The full restoration, including settled areas	Quoted per project

A worked example. A typical 500 sq ft St. Catharines driveway with a couple of sunken spots, weedy joints, and faded colour illustratively runs roughly $4,000 to $6,500 fully restored. A full tear-out and replacement of the same interlock runs $12,000 or more at current Niagara prices. The pavers, the part you already paid for, are almost always reusable. The base and the joints are what need the work.

Why restoration usually wins the math

Interlock pavers are manufactured to last. A concrete paver laid fifteen years ago is typically still structurally sound. What fails is the base beneath it and the joint sand between it. Restoring those two things costs a fraction of excavating the whole surface and starting from scratch. The restore-versus-replace calculation favours restoration whenever the pavers themselves are intact, which is the case for the large majority of settled or weedy driveways in the region.

Full illustrative ranges for each service are also on the individual guide pages. When a quote from a contractor differs significantly from these ranges in either direction, it is worth asking what is driving the difference, whether that is base depth, site access, drainage work, or something else.

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Hiring an interlock restoration contractor in Niagara

Before any work starts, confirm the contractor carries liability insurance and WSIB coverage. Ask for references and, where possible, photos of past interlock restorations in the area. A crew that cannot produce either is worth skipping.

Insist on a written, itemized estimate that specifies whether the base is being rebuilt or only the surface pavers re-laid. That distinction matters: re-laying pavers on a failed base is how a settling section comes back the following spring. The base repair is the real fix for settling.

If any pavers are cracked or damaged, ask the contractor how they plan to source replacements. A good crew will check whether the style is still in production and, if not, will explain the options honestly, including pulling matching pavers from a less visible area of the same project.