What foundation crack injection costs in Edmonton

Crack injection is the repair most Edmonton homeowners actually need, and it is the one least likely to be offered first. It is done from inside, it takes a few hours, and it costs a fraction of excavation.

Here are the numbers.

Polyurethane or epoxy

These get quoted interchangeably and they do different jobs.

Polyurethane expands as it cures and stays flexible. It fills the crack through the full thickness of the wall and keeps moving with the concrete through every freeze-thaw cycle. It is the right choice for a crack that leaks.

Epoxy is rigid and it bonds the two faces of the crack back together, restoring the wall's strength. It is the right choice when the concern is structural rather than water. Epoxy in a crack that is still moving will crack again beside the repair.

If someone quotes epoxy for a leak with no structural assessment, ask why.

What moves the price

Length and depth of the crack. A four foot crack in a six foot wall takes less material and fewer injection ports than a nine foot crack running the full height.

Access to the wall from inside. A crack in an unfinished mechanical room is straightforward. The same crack behind finished drywall, framing and flooring means demolition and disposal before anyone can inject anything.

Whether the crack is already wet. An actively leaking crack has to be handled differently than a dry one, and some situations need the water controlled before injection will hold.

Number of cracks. The first one carries the trip. The rest are far cheaper on the same visit, which is why it is worth walking the whole perimeter before booking.

Wall type. Injection works on poured concrete. Concrete block walls are a different repair entirely, because water travels through the hollow cores and there is no single crack to fill.

When injection is not the answer

Injection seals a defined crack in a poured wall. It does not solve these.

Water arriving at the joint where the floor meets the wall, along a length of wall. That is groundwater or failed weeping tile, and sealing a crack will not touch it.

A wall that is bowing, or a crack that is horizontal and wider at one end. That is movement, and it needs a structural assessment before any sealing.

A crack that reopens after a previous repair. Something is still moving, or the wrong material was used the first time.

Water pooling against the house because of grading. Injection will stop that crack and the water will find the next weak point.

How to know before you call

Look at the crack when the basement is dry. Note whether it runs vertically or diagonally, roughly how long it is, and whether the two sides sit flush or one has shifted out of plane. Mark the ends with a pencil and check in three months to see if it has grown.

A vertical crack that is not growing, in a poured wall, with dry floors elsewhere, is a straightforward injection.

What a good quote looks like

It tells you where the water is entering and why, then prices the fix. A quote that is only a number is asking you to trust a stranger with your foundation.

It should say which material is being used and why. It should say what happens if the crack leaks again, and what the warranty actually covers rather than only how many years it runs.

What to do next

Text us a photo of the crack with something for scale next to it, a pen or a coin. We will tell you whether it looks like an injection or something else, at no cost, and give you the number before we come out.

Related reading: full Edmonton waterproofing price ranges and interior vs exterior waterproofing.

Common questions

How much does foundation crack injection cost in Edmonton?
A single polyurethane crack injection in Edmonton typically runs $1,200 to $2,000 per crack, done from inside in a few hours. Additional cracks repaired on the same visit start from $350 each. Structural epoxy injection runs $700 to $2,000.

Is polyurethane or epoxy better for a leaking crack?
Polyurethane is the right choice for a crack that leaks. It expands as it cures, fills the full wall thickness, and stays flexible through freeze-thaw cycles. Epoxy is rigid and restores structural strength, which makes it the choice when the concern is structural rather than water.

Does crack injection last?
A polyurethane injection in a poured concrete wall is a permanent repair when the crack is the actual entry point and the wall is not still moving. If a repaired crack leaks again, either something is still moving or the wrong material was used.

Can crack injection fix water at the floor and wall joint?
No. Water arriving along the joint where the floor meets the wall is groundwater or failed weeping tile, not a wall crack. Sealing a crack will not change it. That situation needs interior drainage, weeping tile repair, or exterior waterproofing.

← More articles