Canadian Construction Cost Inflation Report — August 2026

Demolition costs in New Brunswick surged $609 in a single month, jumping from $2,395 to $3,004 — a 25.4% increase that stands as the sharpest single-category move recorded in this month's national dataset. That kind of movement in a typically stable, commodity-driven trade category is not noise. It is a signal, and it deserves scrutiny alongside the broader pattern of cost pressure emerging from Atlantic Canada and rippling unevenly across the country.

Summary of Top Movers — August 2026

Where Costs Are Rising — and Why

The most striking provincial story this month is New Brunswick, and it is not a subtle one. Four separate categories posted significant increases simultaneously: demolition (+25.4%), general contracting (+12.7%), concrete work (+9.0%), and drywall installation (+6.5%). When multiple trades inflate in the same province within the same 30-day window, the explanation rarely comes down to a single material or a single job. More often, it reflects a labour availability crunch — a concentrated spike in project demand that outpaces the local trade workforce's capacity to respond. New Brunswick's construction labour pool is structurally thin compared to larger provinces, which means even a modest uptick in permit activity or a cluster of commercial contracts can push residential pricing sharply higher as contractors reprice their availability. The sample size for general contracting in New Brunswick stands at 779 observations, which makes that 12.7% move statistically credible, not an artefact of a thin dataset.

The counter-signal from New Brunswick is the home addition category, which dropped 16.0% from $66,194 to $55,601 on 42 projects. This apparent contradiction likely reflects a compositional shift — smaller or less complex addition scopes entering the sample this month — rather than genuine softening in the cost of labour or materials. Contractors pricing out large additions in that province are almost certainly not seeing their input costs fall while demolition and concrete are rising simultaneously.

Ontario presents a bifurcated picture. Secondary suite construction jumped $11,875 per project (+14.3%) on a robust sample of 134 projects, while several other categories softened: flooring fell 7.7%, drywall installation dropped 4.0%, bathroom renovations declined 2.6%, and roofing pulled back 2.7%. The secondary suite inflation is consistent with ongoing policy-driven demand — provincial incentives and zoning reforms continue to channel homeowner investment into accessory dwelling units, sustaining upward pressure on the specialized trades involved in that work. Foundation repair, meanwhile, rose 7.7% to $11,900 on a very large sample of 400 projects, suggesting genuine cost escalation in structural and waterproofing trades across Ontario rather than sample volatility.

Alberta is seeing painting and siding costs accelerate. Painting climbed 9.5% to $4,889 on 309 projects, and siding posted a 7.2% gain to $17,037. These are finish-trade categories sensitive to both labour wage pressure and material costs — exterior cladding products in particular have been subject to supply chain volatility tied to polymer and composite pricing. Alberta's construction market has remained persistently active through 2026, and wage benchmarks for skilled tradespeople in the province continue to drift upward as interprovincial migration sustains housing demand. The siding sample of only 25 projects warrants a degree of caution, but the direction aligns with Alberta's broader cost environment.

British Columbia shows the most stable profile of any major province in this dataset. Basement finishing rose a modest 4.0% to $24,569, painting increased 5.6% to $6,713, insulation climbed 4.7% to $4,624, and both foundation repair (+2.9%) and home additions (+3.3%) registered incremental gains. No British Columbia category fell this month. That consistent, low-single-digit upward drift across multiple trades suggests a market absorbing ongoing cost pressure without the volatility seen in New Brunswick or the mixed signals coming out of Ontario. Labour costs in British Columbia remain elevated in absolute terms — painting at $6,713 is dramatically higher than the national average of $4,734 — but the rate of change has moderated.

At the national level, the painting index rose 3.5% to $4,734 on 1,413 observations, making it one of the most statistically reliable reads in this dataset. Foundation repair nationally climbed 2.5% to $16,869 on 1,077 projects. Secondary suite costs nationally moved up 3.1% to $91,394. These national aggregates, built on large samples, confirm that cost inflation has not reversed — it has simply become more selective in where it concentrates.

August's seasonal context is relevant. Late summer represents the tail end of peak construction season, when backlogs are fullest and contractors have the least incentive to compete aggressively on price. The broad upward bias in this month's data is consistent with that dynamic. Categories showing declines — flooring, drywall, bathroom renovations in Ontario — are more interior-focused trades that can be scheduled more flexibly and may be seeing some demand normalization after a busy spring.

Three-Month Forecast: September Through November 2026

The outlook through the end of autumn carries both relief and continued pressure, depending on the category and province.

New Brunswick's multi-category surge is likely to partially correct over the next two to three months. When broad-based inflation in a smaller market is driven by a short-term labour availability crunch rather than structural cost changes, normalization typically follows as backlogs clear and contractors from adjacent markets fill the gap. The general contracting and concrete categories are most likely to stabilize. Demolition at $3,004, however, may hold closer to its new level if the underlying driver is a specific shortage of equipment operators or licensed abatement contractors — trades that do not respond as quickly to interprovincial mobility.

Ontario's secondary suite market should remain elevated. The structural demand drivers — policy support, housing density targets, and continued investor interest in rental income — are not dissipating. Expect costs in that category to hold above $90,000 nationally through the fall, with Ontario likely staying near or above the $94,000 range. Foundation repair costs nationally are on a steady upward path that shows no reversal signal; homeowners should anticipate continued escalation into 2027 as aging housing stock and wet weather patterns sustain demand for structural remediation work.

Alberta's finish trades will be the category to watch. If painting has risen 9.5% in a single month on a 309-project sample, and siding has followed in the same direction, the province may be approaching a threshold where interior renovation demand begins to slow as sticker shock sets in. The more likely near-term scenario, however, is that labour wage floors in Alberta continue to push quotes higher through the fall as contractors price in winter scheduling premiums. Homeowners planning exterior work in Alberta would be prudent to lock in quotes before October.

British Columbia's steady drift is expected to continue. No category in the province reversed this month, and the moderate pace of increases reflects a mature, high-cost market rather than a market in acceleration. Project costs there are unlikely to fall meaningfully in the next quarter; the more probable outcome is continued 3–5% monthly increments in active categories as autumn project completions sustain trade utilization rates.

The broader national signal from August 2026 is one of selective but persistent inflation. Averages mask significant provincial divergence, and homeowners and contractors alike would be poorly served by treating national headline numbers as a proxy for local conditions. The gap between a $4,889 painting job in Alberta and a $6,713 job in British Columbia — both moving higher — illustrates how consequential that distinction remains.