Fuel, conflict, and the re‑emergence of escalation risk.
Following last month’s update, construction costs remain front‑of‑mind for many clients as ongoing conflict involving Iran continues to prolong uncertainty across global energy and logistics markets. While recent domestic indicators had suggested that escalation pressures were beginning to moderate, emerging evidence highlights how quickly those conditions can unravel once external shocks hit.
Construction costs are increasingly shaped by forces well beyond Australia’s borders. Labour availability has improved in parts of the market, headline material price increases became less frequent, and supply chains had shown early signs of stabilisation. However, the Rawlinsons Market Insight – Fuel Analysis (April 2026) demonstrates the fragility of those conditions once fuel prices, freight routes, and insurance premiums are disrupted.
Fuel‑Driven Escalation Is Not Linear
One of the key takeaways from Rawlinsons’ analysis is that fuel‑related disruption rarely leads to a single, uniform uplift to construction costs. Instead, it introduces multi‑layered volatility, with impacts accumulating across materials, transport, preliminaries, and programme duration.
Under a contained disruption scenario, Rawlinsons forecast a short‑term uplift of approximately 1–2% above baseline escalation assumptions. However, should elevated fuel prices, freight constraints, and broader supply‑chain instability persist through late 2026, escalation outcomes could reasonably reach 6–9% above baseline forecasts. These impacts are most pronounced on projects with extended durations, regional supply dependencies, or high material intensity.
While these scenario ranges provide useful guidance, they are not definitive predictions. We are already seeing anecdotal evidence of projects experiencing cost escalation and programme impacts exceeding published scenario allowances. Local labour constraints, project‑specific material exposure, freight availability, and increasing contractor risk pricing are all contributing factors. As a result, reinstatement outcomes are increasingly reverting to being assessed on a case‑by‑case basis, rather than being reliably captured by generic indices or standardised escalation assumptions.
Energy, Fuel and Logistics
The construction sector remains highly diesel dependent. Earthworks, concrete transport, steel fabrication, crane operations, and long distance haulage are all sensitive to fuel price movements. Even short term increases in global oil prices can materially affect construction operating costs and pricing assumptions.
At the same time, instability in the Middle East has increased pressure on global shipping. Route diversions, higher insurance premiums, rising bunker fuel costs, and longer transit times are becoming increasingly common. For Australian projects, this can translate into higher landed costs and delays, particularly for materials and components that are not easily sourced locally.
Uneven Cost Pressure Across Building Elements
Crucially, escalation isn’t spread evenly across building components. Rawlinsons’ data shows the most pronounced and persistent increases are occurring where fuel and petroleum inputs are embedded in production or transport.
In particular:
- Bitumen and asphalt, have increased by approximately 30–50%, reflecting direct oil price exposure and higher transport costs.
- Plastic pipework (PVC, PE, PP), has increased by around 30–40%, driven by higher resin costs and energy‑intensive manufacturing.
- Concrete pricing is increasingly impacted by fuel and transport surcharges, with reported increases of around $8 per cubic metre. A significant issue for regional projects with long haul distances.
Flow‑On Impacts Beyond Material Costs
These material increases only tell part of the story. Fuel price volatility also flows directly into preliminaries and site operations, affecting earthworks, craneage, concrete pours, steel fabrication, and long‑distance haulage.
When layered with longer delivery times, re‑sequencing of works, tighter tender validity periods, and increased contractor risk allowances, the cumulative effect on total construction and reinstatement costs can exceed what headline indices alone would suggest. These pressures are often embedded in contractor pricing well before they are fully reflected in published data.
Published Indices Lag Market Reality
It’s also important to recognise that widely published construction cost indices typically lag real‑world market conditions. Fuel surcharges, freight premiums, procurement risk allowances, and tender qualifications commonly emerge ahead of formal index movement. In periods of heightened volatility, reliance on static or lagged indices can understate reinstatement risk, particularly following sudden geopolitical or energy‑market shocks.
Implications for Reinstatement and Insurance Risk
From a reinstatement cost perspective, these conditions reinforce the limits of static assumptions. Periods of apparent stability can unwind quickly once fuel surcharges, freight premiums and escalation clauses become embedded in contractor pricing.
Early and proactive engagement with Quantity Surveyors, insurers and brokers is critical. Clients should be reviewing how current construction cost volatility is reflected in their policy settings, including:
- Declared values and Building Sums Insured
- Escalation and margin clauses
- Policy limits and allowance for program uncertainty
These conversations are most effective when undertaken before a loss event, particularly for complex assets, regionally exposed properties, or buildings that haven’t been reviewed recently.
While Rawlinsons have sought to assist the industry through informed escalation scenarios based on projected disruption duration, current market evidence suggests that real‑world outcomes may, in some cases, exceed those allowances. In an environment where published indices lag, forecast scenarios are being tested, and volatility has once again become a defining feature of the construction market, reinstatement cost risk is increasingly specific rather than generic.