Slabs, ceilings, expansion joints, traffic toppings and keeping the garage open while repairs run.
After the spring thaw. Freeze-thaw cycling over a Toronto winter opens cracks to their widest and the damage is fresh and visible. Sealing before the summer means traffic is not pumping water through open cracks for the busiest months of the year.
More detail: read the related project note.
Water collects in the crack, and each passing tire pressurizes it into a hydraulic pocket with nowhere to escape. That repeated impact breaks the asphalt apart from below and hammers the membrane beneath it. The crack itself is not the damage — it is the route the pressure travels.
More detail: read the related project note.
A ledge beam is the large square concrete beam visible from the parking level, spanning between columns and carrying the edges of the floor slabs. The slabs rest freely on top of it rather than being poured monolithically with it, which makes the beam part of the building's structural load path.
More detail: read the related project note.
A top-slab joint sits at the ceiling of P1, under the deck that carries landscaping or asphalt at grade. A mid-slab joint sits between parking levels — the floor of P1 and the ceiling of P2 — with nothing buried above it. The difference determines how the joint can be accessed and repaired.
More detail: read the related project note.
A parking garage does not usually close for ceiling repair, because the work is staged in sections with cars moved out of the affected bays only. Patch materials cure in around four hours, so a section is rarely out of service long, and the coating over the top generally sets the schedule rather than the patch.
More detail: read the related project note.
Coating over spalled concrete without repairing it hides the symptom and does nothing about the corroding steel underneath, so the coating fails as the cover continues to break away. Any coating is the last layer of a system, applied after the loose material is removed, the steel treated and the profile rebuilt.
More detail: read the related project note.
Cracks in a parking garage slab are usually not structural in themselves, but they are the path by which chloride-laden water reaches the reinforcing steel, and corroding steel is structural. The width and the wetness matter more than the length. A wet crack in a drive lane deserves attention before a dry crack twice its size.
More detail: read the related project note.
Thin patching works overhead as well as on floors and walls, but the material has to hold its shape against gravity while it cures. Structural patch materials with a clay-like consistency are made for this and will not sag or drip off a soffit. We have patched garage ceilings, walls, floors and ramps in a single campaign with one system.
More detail: read the related project note.
A single delaminated patch in a parking garage slab is usually not structural on its own, but the open seam lets salt water reach the reinforcing steel, and corroding rebar is structural. The patch is the symptom. What matters is how long the water has had a path in, which is why deferred patching gets more expensive rather than staying the same price.
More detail: read the related project note.
Most of our patching in occupied parking garages is back under traffic the same day or the next, because the adhesive and polymer cements cure in about four hours rather than the days conventional concrete needs. On one Scarborough garage floor repair the self-levelling material cured in under thirty minutes and the level reopened within a few hours.
More detail: read the related project note.
Often not. Many leaking conduit penetrations are sealed from inside the garage — wire-brushing the wall, parging the section housing the conduit and coating it with a cold-applied polyurea material — with no digging at all. Excavation earns its cost mainly where a previous repair has already failed, because the condition of a buried penetration cannot be judged without exposing it. On grass the reinstatement is straightforward: the existing spoil goes back, topped with topsoil and seed.
More detail: read the related project note.
In the range of $3,000 to $4,000 for a single penetration in soft landscaping across the GTA, covering excavation, the sealing build-up, backfill and reinstatement. Depth, access for a machine, and what sits above the penetration are the three things that move that number. Asphalt or hardscape above will push it higher.
More detail: read the related project note.
A walkthrough every three to twelve months, set by the age and condition of the garage. Most garage leaks are reported by a resident rather than found by the superintendent or property manager, which means the problem is already dripping on someone's car by the time anyone hears about it. A scheduled condition assessment moves that discovery forward.
More detail: read the related project note.
Relocate the affected vehicles and tape off the bays underneath the leak. On a Vaughan condominium garage we inspected this month, the management company had already moved the affected residents into visitor parking and closed off the drive aisle section, which stopped further staining while the source was traced. It costs nothing and removes the complaint that drives everything else.
More detail: read the related project note.
In most GTA condominiums the resident is directed to claim on their own auto insurance first, and some management companies will cover the deductible as a goodwill measure. Responsibility varies between corporations and between management companies, so it is worth confirming the position with the property manager and the corporation's insurer before residents start asking.
More detail: read the related project note.
You can tell a garage ramp is heated by looking for the electrical panel and contactor serving the ramp, and by watching the ramp after a snowfall — a heated ramp clears while the surrounding pavement stays covered. The heating element is a cable loop cast into the ramp, so nothing is visible from the surface. Building drawings and the original ramp construction records are the reliable confirmation.
More detail: read the related project note.
Yes — the heating has to be energised before repair work starts on a heated ramp, whatever the season, because the thermal camera can only see a cable that is warm. A cable that is switched off reads the same as the concrete around it and is invisible to the survey. We have cut a cable on a ramp where some circuits were left off during the review, which is exactly the failure this step prevents.
More detail: read the related project note.
A cut heating cable in a parking garage ramp is expensive to repair and the repair is invasive — the cable is buried in the ramp, so reaching the break means opening the surface above it. The cable is also easy to hit, because on many ramps it sits directly in the asphalt or mastic wearing course rather than under a separate topping slab. Locating and marking every cable first is cheaper than any cable repair.
More detail: read the related project note.
The safest heated ramp design puts the heating element in a separate topping slab laid over the structural ramp slab, with the wearing surface above that. Any future coating work then happens above the element instead of around it. Where the cable was laid on the structural slab and asphalt or mastic poured straight over it, every surface repair carries cable risk — which is the common case, not the exception.
More detail: read the related project note.
Caulking a crack in a heated concrete ramp fails because rubber conducts heat roughly a hundred times worse than concrete does. The heat travelling through the slab stalls at the sealant line, builds up against it and cooks the material, so the sealant degrades faster than the same product would in an unheated slab. A cementitious repair keeps the slab thermally continuous and lets the heat pass through.
More detail: read the related project note.
Sika 122 Plus is the version carrying a corrosion inhibitor, so it is the one to use where the slab contains rebar or wire mesh near the repair. Both are cementitious and pourable into a routed crack. On a heated ramp the cementitious base matters more than the choice between them, because it keeps heat moving through the repair instead of stalling at it.
More detail: read the related project note.
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