How do concrete contractors in New Brunswick typically price foundation crack injection repair — by the linear foot, by the number of ports, or as a flat project rate?

Most NB concrete contractors price foundation crack injection as a flat per-crack rate, though the method varies and understanding how each approach works helps you evaluate quotes accurately.

The most common pricing structure you'll encounter in New Brunswick is a flat fee per crack — typically $500 to $1,500 per crack depending on length, depth, accessibility, and whether polyurethane or epoxy injection is used. This per-crack flat rate is practical for contractors because it bundles the site visit, materials, drilling, injection, and cleanup into one predictable number. It also makes it easier for homeowners to compare quotes apples-to-apples.

Some contractors do price by the number of injection ports, which are drilled into the crack at intervals of roughly 8 to 12 inches along its length. A typical basement wall crack might require 4 to 8 ports. Port-based pricing usually runs $80 to $150 per port, so a 5-port repair lands in the $400 to $750 range. This method is more transparent in one sense — you can see exactly what you're paying for — but it can be harder to compare against a flat-rate quote without knowing how many ports the contractor plans to use.

Linear foot pricing is less common for crack injection specifically, though you'll see it used for parging and exterior waterproofing work. When a contractor does quote by the linear foot for injection, expect $75 to $150 per linear foot. A typical 4-foot basement wall crack would come in at $300 to $600 under this model — sometimes lower than a flat-rate quote, so it's worth asking which method a contractor uses before assuming.

What Actually Drives the Price in NB

The pricing method matters less than understanding what drives the cost up or down. Crack length and complexity are the biggest factors — a hairline crack running 2 feet costs far less to inject than a 6-foot crack with displacement or multiple branches. Material choice also matters significantly: polyurethane foam injection (the most common method for active or wet cracks) costs less than structural epoxy injection, which is used when the crack has compromised the wall's structural integrity and needs to be bonded back together. Epoxy repairs typically run 30 to 50 percent more than polyurethane.

Accessibility affects price too. A crack behind a finished basement wall, a furnace, or a water heater takes more time and may require some demolition. Contractors in northern NB (Bathurst, Edmundston, Campbellton) sometimes price slightly higher due to travel and the shorter working season.

NB-Specific Considerations

New Brunswick's freeze-thaw cycles are hard on foundation walls. What looks like a single crack is sometimes a crack that has been cycling open and closed for years, with a wider profile at the surface than at depth. A reputable contractor will probe the crack before quoting to assess its depth and whether it's actively leaking or dry — this affects both the material used and the number of ports needed. Always ask whether the quote covers the full depth of the crack and what happens if the injection doesn't fully seal it on the first attempt (some contractors offer a warranty on their injection work, typically one to three years).

One honest caution: crack injection addresses the symptom, not always the cause. If hydrostatic pressure from poor drainage or spring thaw is driving water through the crack, injection alone may not be a permanent fix. A professional assessment that includes looking at grading, downspout discharge, and weeping tile condition is worth having alongside the repair quote.

Need help finding a foundation repair contractor in your area? New Brunswick Concrete can match you with local professionals for free — or browse the New Brunswick Construction Network directory at newbrunswickconstructionnetwork.com/directory?trade=concrete.