Can concrete resurfacing fix an old driveway in NB?

Concrete resurfacing can genuinely extend the life of an old NB driveway — but only if the existing slab is structurally sound. Resurfacing applies a new 1/4 to 1/2 inch layer of polymer-modified concrete over the existing surface, restoring appearance and adding a fresh wearing surface. It is not a structural repair and will not fix a driveway that has fundamental problems with its base, thickness, or reinforcement.

The hard truth about concrete resurfacing in New Brunswick is that NB's freeze-thaw conditions are the most demanding stress test a resurfacing product can face. A resurfacing layer that is not properly bonded to the existing concrete, applied too thin, or applied to a concrete surface with ongoing movement, will delaminate and pop off within 2-5 winters. When resurfacing works, it is excellent value. When it fails, you are back to the original problem plus the wasted cost of resurfacing.

Resurfacing is appropriate for NB driveways when:

• The existing slab is at minimum 3.5 inches thick and sound (rings clear when struck, no flex)


• Cracking is minimal — hairline shrinkage cracks only, no wide or structural cracks


• Spalling or surface scaling is limited to the top 1/4 inch or less


• The base is stable — the slab has not settled or heaved significantly


• The driveway is 10-20 years old and showing early surface wear, not end-of-life deterioration

Surface preparation is everything. The existing concrete must be ground or shot-blasted (not just pressure-washed) to open the surface profile and remove any traces of oil, sealer, curing compound, or contamination. A concrete bonding agent is applied before the resurfacer. Any cracks wider than 1/8 inch are repaired and allowed to cure before resurfacing. Skip these steps and the resurfacer will peel. Professional preparation and application of driveway resurfacing in NB runs $3-$6 per square foot — a 500 sq ft driveway would cost $1,500-$3,000.

After resurfacing, the new surface must be sealed within 30 days of application and resealed every 2-3 years. A penetrating silane/siloxane sealer is the right choice for NB driveway conditions — it repels water and de-icing salt without changing the appearance or creating a slippery surface. No de-icing salts on a newly resurfaced driveway for at least 2 full winters — use sand for traction only.

Resurfacing is NOT appropriate when:

• The driveway has major structural cracks, broken slabs, or rebar showing


• Large sections have settled or heaved — the resurfacer will follow the existing contour


• The concrete is very old (30+ years) and shows widespread deterioration through its depth


• Previous repair or resurfacing attempts have already failed

For driveways in Moncton, Fredericton, Saint John, Bathurst, and across NB, the 25-40 year lifespan of a properly installed, sealed, and maintained concrete driveway means that a driveway from the late 1990s or early 2000s may genuinely be a resurfacing candidate rather than a replacement. Get a professional assessment to know which side of the line your driveway falls on.

New Brunswick Concrete can match you with experienced concrete resurfacing and repair contractors across the province for a free quote.