Question 1

How do I repair cracks in my concrete foundation in New Brunswick?

Accepted Answer

Foundation crack repair in New Brunswick depends on the type of crack, whether it is leaking, and whether it is structural or non-structural — and the honest answer is that most foundation cracks in NB warrant a professional assessment before you start applying products. Choosing the wrong repair method for your crack type can seal in problems, give false confidence, or miss an ongoing structural issue.

NB foundations deal with some of Canada's most challenging conditions: 4-5 foot frost depth,

Question 2

What is the best concrete crack filler for NB winter conditions?

Accepted Answer

For New Brunswick's freeze-thaw conditions, the best concrete crack fillers are flexible polyurethane sealants for surface and control joint cracks, polyurethane foam injection for leaking foundation cracks, and epoxy injection for structural cracks that need rigid bonding strength. Rigid, brittle fillers like standard hydraulic cement or unsanded grout are poor long-term choices for exterior NB concrete because they cannot flex with the 150+ annual freeze-thaw cycles the concrete experiences.

Question 3

How do I fix spalling concrete on my NB front steps?

Accepted Answer

Spalling concrete steps — where the surface layer flakes, pops off, or crumbles — are one of the most common concrete repair projects in New Brunswick, and they can be repaired successfully if the damage is surface-level and the underlying concrete is structurally sound. If spalling has penetrated deep enough to expose or rust the rebar, or if the step structure itself is cracked and unstable, replacement is likely the better long-term investment.

Spalling on NB front steps is almost always cau

Question 4

What causes white powder on concrete walls in New Brunswick basements?

Accepted Answer

The white powdery deposits on your New Brunswick basement concrete walls are called efflorescence — and they are a reliable indicator that water is moving through your concrete wall, carrying dissolved minerals with it. Efflorescence itself is not structurally dangerous, but it is your concrete wall's way of telling you it has a moisture problem that deserves attention.

Here is what is happening: water — from groundwater pressure, rain infiltration, snowmelt, or condensation — moves through the

Question 5

Can spalling concrete be repaired or does it need to be replaced in NB?

Accepted Answer

Spalling concrete can often be repaired successfully in New Brunswick if the damage is limited to the surface layer and the underlying concrete is structurally sound — but widespread, deep spalling, or spalling on thin slabs typically means replacement is the more cost-effective long-term choice. The decision hinges on depth of damage, total surface area affected, age of the concrete, and what caused the spalling in the first place.

Repair is appropriate when:
- Spalling is less than 1 inch dee

Question 6

How does mudjacking work and is it a good option in NB?

Accepted Answer

Mudjacking — also called slabjacking — is a process of pumping a slurry mixture of water, soil, and Portland cement under a sunken concrete slab to lift it back to its original level. It is a legitimate, cost-effective repair option in New Brunswick for sunken driveways, sidewalks, patio slabs, and garage aprons — but its suitability depends on why the slab sank and what the soil conditions are beneath it.

The process works by drilling 1.5 to 2-inch holes through the sunken slab at strategic lo

Question 7

What is poly levelling and how does it compare to mudjacking in New Brunswick?

Accepted Answer

Poly levelling (also called polyurethane foam lifting or foam jacking) uses expanding polyurethane foam injected through small holes to lift sunken concrete slabs. It is the modern alternative to traditional mudjacking, and in New Brunswick's climate, it has several advantages — but it also costs more and is not always the right choice for every situation.

The process is similar to mudjacking at a high level: technicians drill small holes through the sunken slab (typically 5/8 inch diameter, mu

Question 8

How do I fix a sunken concrete garage floor in Moncton?

Accepted Answer

A sunken concrete garage floor in Moncton is most commonly caused by inadequate compaction of the granular base when the floor was originally poured, or by soil consolidation and moisture movement beneath the slab over time. The good news is that if the slab itself is structurally sound — not cracked into pieces or broken through — lifting and levelling is often the most cost-effective solution before considering full replacement.

Moncton's geology includes areas with varying soil conditions —

Question 9

Can concrete resurfacing fix an old driveway in NB?

Accepted Answer

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

Question 10

How do I repair parging on my foundation wall in New Brunswick?

Accepted Answer

Parging — the thin layer of mortar or stucco applied to the exposed portion of a concrete block or poured concrete foundation wall above grade — is both decorative and protective, and repairing it is one of the most common and manageable concrete maintenance tasks for NB homeowners. Failed parging exposes the underlying foundation material to moisture, freeze-thaw damage, and accelerated deterioration, so prompt repair is worthwhile.

In New Brunswick, parging takes a beating. The exposed above-

Question 11

What is the best way to seal foundation cracks from the inside in NB?

Accepted Answer

The best interior method for sealing foundation cracks in New Brunswick is polyurethane foam injection — it works on wet or actively leaking cracks, remains flexible after curing, and performs well through NB's freeze-thaw cycles. Epoxy injection is the second option for dry, dormant cracks where structural strength of the repair is the priority. Surface-applied waterproofing paints or cements applied over cracks without injection are generally the least reliable option for anything more than ha

Question 12

How do I fix concrete scaling from salt damage in New Brunswick?

Accepted Answer

Concrete scaling from salt damage is one of the most common problems NB homeowners face, and the fix depends on how deep the damage goes. Surface scaling — where the top layer flakes off in thin sheets — is typically a cosmetic and protective repair, while deep scaling that exposes aggregate or rebar requires more involved restoration.

The first step is to stop the damage from progressing. Identify and eliminate the source of salt exposure as best you can. On driveways, this means stopping road

Question 13

Can you overlay new concrete over old damaged concrete in NB?

Accepted Answer

Yes, you can overlay new concrete over old damaged concrete in New Brunswick — but only if the existing slab is structurally sound and properly prepared. The success of any overlay depends almost entirely on surface preparation and the condition of the base concrete. Skip either step, and the overlay will delaminate within one or two NB winters.

The biggest question is whether your existing concrete is a candidate for overlaying at all. If the slab is cracked and actively shifting, has signific

Question 14

How long does a concrete crack injection repair last in NB winters?

Accepted Answer

A properly done concrete crack injection repair can last 10–25 years in New Brunswick conditions — but the longevity depends heavily on what caused the crack and whether that cause has been addressed. Epoxy injection repairs on stable, structural concrete typically outlast the surrounding concrete. Polyurethane foam injection repairs in foundation walls are also long-lasting for waterproofing, but they're more flexible than epoxy and designed to move slightly with the concrete.

There are two ma

Question 15

What causes concrete pop-outs in New Brunswick driveways?

Accepted Answer

Concrete pop-outs in NB driveways are almost always caused by reactive aggregate — small stones in the concrete mix that absorb water, freeze, and literally explode out of the surface, leaving a shallow conical crater. They're one of the most frustrating cosmetic problems NB homeowners face, because they keep recurring and there's not much you can do to stop them once the concrete is placed.

Here's the mechanism: certain aggregate types — particularly shale, chert, or porous limestone particles

Question 16

How much does concrete driveway resurfacing cost in Miramichi NB?

Accepted Answer

Concrete driveway resurfacing in Miramichi, NB typically costs $3 to $7 per square foot, putting a standard two-car driveway (400 to 600 square feet) in the $1,200 to $4,200 range depending on the product used, the condition of the existing concrete, and how much preparation is required.

Resurfacing means applying a thin bonded overlay — typically 1/4 to 3/8 of an inch thick — of a cement-based resurfacing compound over your existing concrete surface. It refreshes the appearance, fills minor su

Question 17

Can I use Quikrete to repair my concrete sidewalk in NB?

Accepted Answer

Yes — for small, surface-level repairs on a structurally sound sidewalk, Quikrete and similar bagged concrete repair products are a practical DIY option in NB. The key is choosing the right product for the right job and understanding the limitations of bagged repair mortars in our climate.

Quikrete makes several products suited to different types of sidewalk repairs. Quikrete Concrete Resurfacer is a polymer-modified cement coating for large areas of surface spalling and scaling — you apply it

Question 18

How to fix a sinking concrete patio in Dieppe NB?

Accepted Answer

A sinking concrete patio in Dieppe NB most commonly means either the gravel base beneath the slab has washed or compacted away, or the soil below has settled — and you have two main repair options: slab lifting (mudjacking or poly levelling) or full replacement.

Dieppe sits in the greater Moncton area where the soil is predominantly a mix of clay and glacial till that can be slow to drain and prone to movement during freeze-thaw cycles. When a patio slab was originally poured over a base that w

Question 19

What is concrete parging and when does it need replacing in NB?

Accepted Answer

Parging is a thin coat of cement-based mortar applied to the exterior face of a foundation wall, typically 1/4 to 3/4 of an inch thick, that provides a smooth, weatherproof surface over the rougher substrate beneath — whether that's poured concrete, concrete block (CMU), or stone. In New Brunswick, parging serves both an aesthetic and a protective function, but it has a finite lifespan and NB's climate is particularly hard on it.

Original parging on older NB homes was typically applied over sto

Question 20

How to fix concrete step corners that have broken off in NB?

Accepted Answer

Broken concrete step corners are one of the most common repair requests for NB homeowners, and for small to moderate corner breaks, it is one of the more manageable DIY concrete repairs — provided you use the right materials and respect the seasonal window for application.

Step corners break off in NB primarily because of freeze-thaw cycling combined with de-icing salt. Salt-laden slush on steps creates more freeze-thaw cycles at the concrete surface than the ambient temperature alone would pro

Question 21

Is it cheaper to repair or replace a cracked concrete driveway in New Brunswick?

Accepted Answer

The honest answer is: it depends entirely on what is causing the cracking and how far the deterioration has progressed — but as a general rule, if you are dealing with widespread cracking across more than 25 to 30 percent of the driveway surface, or if panels are heaving, sinking, or cracking through their full depth, replacement is almost always the better financial decision over a 5 to 10 year horizon in New Brunswick.

Crack repair and resurfacing seem cheaper upfront — and they are. Crack fi

Question 22

How do concrete contractors in NB handle large crack repairs in foundations?

Accepted Answer

For large cracks in NB foundation walls, professional contractors use one of two primary methods depending on whether the crack is actively leaking and whether structural movement is involved: epoxy injection for structural cracks that are dry and stable, and polyurethane foam injection for actively leaking cracks. Understanding which method applies to your situation is the first step.

Epoxy injection fills the crack with two-part epoxy resin that, when cured, creates a bond stronger than the s

Question 23

What is the best foundation repair method for old NB homes?

Accepted Answer

Old New Brunswick homes — particularly those built before 1970 — often have foundations made from stone and mortar, poured concrete that predates modern admixtures and reinforcement standards, or hollow concrete block (CMU). The best repair method depends entirely on what type of foundation you have, what problems it is showing, and what your goals are for the home.

The most common foundation types in older NB housing stock, and their repair approaches, break down as follows.

Stone rubble foun

Concrete Repair & Restoration