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Material Cost Inflation: Protecting Construction Margins in 2026

September 2026 · 6 min read

The shift from labour to materials risk

Materials cost is now cited as the biggest concern behind the five-year building cost outlook, overtaking the labour cost pressures that dominated recent years. This changes where contractors should be focusing their margin protection effort when pricing new bids.

Why fixed-price bids are riskiest right now

Bids priced on current materials cost with no review mechanism are most exposed if inflation continues at pace over a multi-month build programme. Contractors who absorbed this risk without adjustment in past cycles have seen it erode margin faster than any other single factor.

Margin protection tactics that work

  • Lock key material prices with suppliers at bid stage where volume allows it
  • Build materials price-review clauses into client contracts for longer programmes
  • Track materials cost trend data continuously rather than reviewing it only at each bid
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