Construction Cost Inflation Report — June 2026
Construction Cost Inflation Analysis: June 2026
Deck construction costs in British Columbia skyrocketed by 271.5% over the past quarter, jumping from $2,460 to $9,138 per project. This dramatic surge represents the largest single price movement across all construction categories nationwide, signaling unprecedented volatility in outdoor renovation markets as the spring building season reaches its peak.
The second quarter of 2026 has delivered a mixed but volatile picture for Canadian construction costs, with several project types experiencing extreme price swings that reflect underlying pressures in both materials markets and skilled labour availability.
Top 10 Most Significant Cost Changes (Q2 2026)
| Project Type | Province | Previous | Current | Change % |
|---|---|---|---|---|
| Deck Construction | British Columbia | $2,460 | $9,138 | +271.5% |
| Landscaping | British Columbia | $3,058 | $9,489 | +210.3% |
| Door Replacement | New Brunswick | $819 | $2,415 | +195.0% |
| Landscaping | New Brunswick | $2,485 | $6,221 | +150.4% |
| Landscaping | National | $3,463 | $7,567 | +118.5% |
| Roofing | Alberta | $7,458 | $16,012 | +114.7% |
| Basement Finishing | New Brunswick | $8,167 | $16,342 | +100.1% |
| General Construction | Alberta | $19,389 | $4,243 | -78.1% |
| Landscaping | Ontario | $25,712 | $7,374 | -71.3% |
| Home Addition | British Columbia | $301,562 | $100,584 | -66.6% |
Regional Divergence and Market Dynamics
New Brunswick emerges as a cost escalation hotspot, with multiple categories experiencing severe upward pressure. Door replacement costs nearly tripled to $2,415, while basement finishing doubled to $16,342. This pattern suggests acute skilled labour shortages in the Atlantic region, where construction activity has intensified following recent population growth and infrastructure investment.
Conversely, Alberta shows dramatic cost corrections in several major categories. General construction projects plummeted 78.1% to $4,243, while basement finishing dropped 50.4% to $17,284. These steep declines likely reflect overcapacity corrections following the province's economic diversification efforts and increased competition among contractors.
British Columbia presents the most complex picture, with extreme volatility across project types. While deck construction and landscaping costs surged, major projects like home additions fell 66.6% to $100,584, and general construction dropped 62.0% to $15,754. This suggests a bifurcated market where smaller outdoor projects face severe material and labour constraints, while larger projects benefit from increased contractor availability and competitive pricing.
Ontario demonstrates relative stability in most categories, though drywall installation costs rose 91.0% to $4,709, indicating ongoing pressures in finishing trades. The province's mature construction market appears better equipped to absorb seasonal demand fluctuations compared to other regions.
Material and Labour Market Pressures
The dramatic surge in landscaping costs nationwide (+118.5% to $7,567) points to severe supply chain disruptions affecting outdoor materials. Lumber pricing volatility, combined with transportation bottlenecks for stone, concrete products, and specialized equipment, has created perfect storm conditions for exterior projects.
Roofing costs in Alberta jumped 114.7% to $16,012, reflecting both material price pressures and acute shortages of certified roofers. The timing coincides with spring storm damage claims and seasonal replacement cycles, creating demand spikes that overwhelmed local capacity.
The concrete work category in British Columbia rose 70.7% to $8,977, suggesting ongoing challenges in aggregate supply and cement availability. These increases mirror broader infrastructure demands competing with residential projects for limited resources.
Drywall installation showed significant increases both nationally (+56.7% to $4,204) and in Ontario (+91.0% to $4,709), indicating persistent skilled labour shortages in finishing trades. Immigration backlogs and certification delays continue constraining workforce expansion despite strong demand.
Three-Month Outlook
The third quarter of 2026 will likely see continued volatility with regional variations becoming more pronounced. New Brunswick's cost pressures appear unsustainable at current levels, suggesting either demand destruction or supply response corrections by August. British Columbia's extreme deck and landscaping costs may moderate as seasonal supply constraints ease, but underlying labour shortages will persist.
Material cost stabilization is expected for concrete and lumber by September, as North American production capacity adjustments take effect. However, specialized trades including roofing, drywall installation, and landscaping will likely maintain elevated pricing through the remainder of the peak construction season.
Contractors should anticipate continued labour premium requirements for skilled trades, particularly in Atlantic Canada and specialized outdoor work nationally. Project scheduling flexibility and material pre-purchasing will become increasingly critical for cost management as supply chain reliability remains challenged through the summer months.