IN Brief:
- The Construction Leadership Council says material price increases now need clearer supporting explanations.
- Product availability is generally good, but concrete plain roof tiles and PIR insulation remain constrained.
- Price pressure is spreading across energy-intensive products, petrochemicals, metals, bathrooms, and kitchens.
The Construction Leadership Council has called for clearer evidence behind current and planned construction product price increases, warning that weak explanations are making cost movements harder to justify and communicate through the supply chain.
The latest statement from the CLC’s Material Supply Chain Group says the challenges facing UK construction persist, with signs of output improvement in February reversed by the start of the Middle East conflict in March. The group said the conflict is expected to intensify pressure through rising prices and renewed inflation.
Product availability is generally good while demand remains subdued, but exceptions remain. Concrete plain roof tiles are expected to stay in short supply until the end of the year, while PIR insulation is currently on allocation with lead times of around three weeks. The group links the PIR position more to precautionary buying than underlying demand.
Builders’ merchants have reported that standard January price increases added 2.2% to the cost of goods. The annualised effect of Middle East-related increases to date has added a further 2.9%, taking the total increase to around 5.1%.
Fuel and energy costs are the most immediate pressure, affecting suppliers through transport and wider operating expenses. Some businesses are absorbing costs for now, but domestic haulage fuel surcharges of 5% to 10% are already being reported.
The group said price pressure is justified in some areas, particularly energy-intensive products such as steel, bricks, concrete, glass, and insulation, as well as petrochemical-based products including adhesives, bitumen, PIR, and PVC pipe. Increases in other categories are harder to attribute solely to underlying costs.
Pressure has also extended into bathrooms and kitchens, driven by MDF costs for cabinetry, overseas logistics, and global input costs. Metals including steel, brass, tungsten, and copper were already seeing increases before the conflict, with further movement expected as imported steel products face UK tariffs and quotas from 1 July.
The transparency problem is now feeding directly into project commercials. Contractors, subcontractors, and merchants need to explain increases to clients, especially where fixed-price agreements were agreed six to 12 months earlier. Without clear evidence, cost recovery becomes harder, commercial relationships tighten, and programme decisions can stall while parties dispute whether increases are exceptional or part of normal market movement.
The pressure is acute for SMEs, housebuilders, and specialist subcontractors operating on thin margins. Material price volatility affects tender validity, framework pricing, merchant stock decisions, and subcontractor resilience. It also complicates the housing and retrofit market, where clients may delay projects if costs become too uncertain.
The CLC is describing a market with a confidence problem as much as an availability problem. Clearer communication on price movements will not remove cost pressure, but it can make commercial decisions more defensible when project margins have little room left to absorb unexplained increases.
