Construction markets rarely react instantly to geopolitical events. But when oil prices spike and global shipping routes become uncertain, the effects often begin to appear in contractor pricing behaviour.
Even where project scope is stable, external shocks can change pricing behaviour very quickly. The current conflict in the Middle East is a good example. Its importance for UK construction is not simply geopolitical, it’s also commercial.
For cost consultants and project teams, the issue is not predicting the course of the conflict. It is understanding how energy volatility, shipping disruption and wider macro uncertainty may alter contractor and supply-chain pricing in the UK.
Why this matters now
As of 16 March 2026, Brent crude has been trading around the $100 per barrel level after rising more than 40% since the conflict began, and both Bank of America and Standard Chartered have raised their 2026 Brent forecasts because of disruption around the Strait of Hormuz. Reuters reports that the strait typically carries around one-fifth of global oil and LNG supplies.
That does not mean every UK construction material will suddenly become materially more expensive. However, it does mean the market is operating with a higher level of uncertainty than it was only a few weeks ago. BCIS has already said escalating tensions in the Middle East threaten to influence cost planning and investment decisions in construction, while RICS continues to report a subdued market in which cost inflation is expected to outpace tender price growth and profit margins remain under pressure.
The first route: fuel and energy
The most obvious channel is fuel and energy.
The UK government’s own data shows the country remains dependent on imports for crude, diesel and jet fuel, even if physical gas-supply disruption from the Gulf looks limited. That matters because construction cost is exposed not only through site fuel and plant, but also through the transport of materials, factory energy inputs and the wider distribution chain.
The point here is not that every tender should now assume a 2022-style energy shock. It is that any sustained period of higher oil prices is likely to feed into parts of the cost base that are fuel-sensitive or energy-intensive. Reuters has already reported UK homebuilders warning that higher energy prices are increasing pressure on materials such as bricks and plasterboard. For commercial fit-out, the direct exposure is more likely to sit in fuel-heavy logistics and in manufactured components whose pricing already reflects volatile factory and shipping inputs. That latter point is partly an inference, but it is a reasonable one based on the same cost channels.
The second route: freight, insurance and logistics
The second transmission route is logistics.
UNCTAD reported that by the end of 2024, spot container freight rates had eased from their mid-year peaks but were still well above pre–Red Sea crisis levels. In other words, global shipping had not fully normalised even before this latest escalation. A new Middle East shock therefore lands on top of a supply chain that was already carrying some residual friction.
The Strait of Hormuz issue is primarily an energy story, but it also affects maritime insurance, vessel routing and general shipping confidence. Reuters reports that governments are already discussing measures to shield consumers from higher energy costs and that some exports are being rerouted where possible. The practical implication for construction is not necessarily blanket delay, but a greater chance of shorter quotation validity, more cautious supplier assumptions and higher logistics allowances within packages reliant on imported components.
The third route: tender behaviour
This is often where the real effect shows up.
Construction markets do not always respond to volatility through visible line-item price rises. More often, they respond through behaviour. Contractors and specialist subcontractors start to price uncertainty itself. That can appear in risk allowances, preliminaries, programme assumptions, shortened validity periods or more conservative treatment of provisional elements.
That matters in the current UK market because BCIS reported annual growth of 2.5% in the All-in Tender Price Index for 4Q2025, but also highlighted persistent challenges around elevated construction costs, labour shortages, insolvency risk and M&E capacity pressure. It also noted a market tendency to cite geopolitical disruption as a source of uncertainty. In a subdued but fragile market, external shocks do not always create immediate, index-visible inflation. Quite often, they increase tender spread and reduce confidence in fixed pricing.
What this means for fit-out and refurbishment projects
For office fit-out and refurbishment, the likely immediate effect is not that every cost plan must be rebased dramatically upward.
The more likely outcome is a market in which:
- suppliers become more cautious on validity periods
- contractors are less willing to absorb unquantified risk
- tenders show wider spreads where procurement periods are tight
- packages with imported content, heavy logistics or M&E complexity attract more defensive pricing
That is particularly relevant on commercial projects, where MEP coordination, imported components and programme pressure already create natural pricing sensitivity. This point is partly professional inference, but it is well supported by the broader evidence on shipping, fuel and tender behaviour.
How clients should respond
In practical terms, the right response is not panic and it is not guesswork. It is better commercial discipline.
In this type of market, project teams should focus on four things.
- First, define scope clearly and early. The more ambiguity that remains, the more opportunity there is for defensive pricing.
- Second, market-test key assumptions earlier than usual. That is especially important for M&E-heavy packages and imported components.
- Third, review quotation validity periods and procurement timing carefully. In a volatile market, those terms matter more than they do in calmer periods.
- Fourth, separate genuine inflation risk from general contingency. A cost plan should not simply carry a larger percentage because headlines are uncomfortable. It should identify the packages and risk channels most exposed to volatility and treat them accordingly. That approach aligns more closely with disciplined NRM-style cost planning than with blunt, top-level allowances.
The macro point
There is also a wider economic angle.
Reuters reported comments from David Miles of the OBR that UK inflation could end 2026 at around 3% rather than 2% if current energy prices persist. The Bank of International Settlements (BIS) has also warned central banks not to overreact to what may prove a temporary shock, while acknowledging that a prolonged energy spike can still amplify inflation and tighten financial conditions. For clients, the relevance is straightforward: even if construction input costs do not jump immediately, a sustained energy shock can still affect borrowing costs, viability, investor sentiment and deal timing.
A final observation
The current Middle East conflict does not automatically translate into a uniform uplift in UK construction costs.
But it does increase the probability of pricing volatility, supply-chain caution and wider tender spreads. In that sense, the bigger commercial risk may be less about a single oil number and more about how uncertainty changes market behaviour.
For project teams, that makes early market testing, clear scope definition and disciplined tender analysis even more important than usual.
In uncertain markets, clarity carries a premium.
References
- How to Stay in Control When Projects Become Uncertain
- What Makes a Great Cost Consultant, and What to Ask Yours
- Iran, the Middle East and UK energy: factsheet – GOV.UK
- Diversity_of_supply_for_oil_and_oil_products_in_OECD_countries_in_2024.pdf
- Producer price inflation, UK – Office for National Statistics
- UNCTAD, Freight rates and maritime transport costs.
- Spring Statement 2026: growth forecasts tempered by inflation risk for construction
- BCIS Tender Price Index | Estimate of Tender Price Inflation
- UK construction activity remains subdued as forward indicators signal gradual recovery
- Reuters reporting on oil-market disruption and forecasts, 15–16 March 2026.
Disclaimer
This article is provided for general information purposes only and does not constitute professional, legal or financial advice. While every effort has been made to ensure accuracy at the time of publication, project circumstances, market conditions and contractual arrangements vary. Advice should always be tailored to the specific requirements of each project.
Readers should not rely on this content as a substitute for professional advice from a qualified cost consultant or regulated practice.
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