Alumasc FY26 trading update: order book jumps 49% despite profit decline

What has Alumasc reported?

Alumasc has delivered a resilient but weaker full-year performance as difficult construction markets, political uncertainty and geopolitical disruption delayed customer decisions.

For the year ended 30 June 2026, the sustainable building products group expects revenue of approximately £107 million and underlying profit before tax of around £10 million. Both figures remain subject to audit, with full-year results due in September 2026.

The headline numbers are below the prior year. Revenue is expected to fall by approximately 5.3% from £113 million, while underlying profit before tax is set to decline by approximately 28.6% from £14 million.

That is a meaningful reduction in profitability. However, management says performance was broadly in line with the expectations set out in its third-quarter trading update and revised market consensus.

Alumasc's key FY26 figures

Metric	FY26 expected	FY25	Change
Revenue	Approximately £107 million	£113 million	Approximately -5.3%
Underlying profit before tax	Approximately £10 million	£14 million	Approximately -28.6%
Order book	49% above June 2025	Not disclosed	+49%
Year-end net bank debt	Approximately £7 million	Not disclosed	Not disclosed
Net bank debt leverage	Approximately 0.5x	Not disclosed	Not disclosed

Underlying profit before tax excludes amortisation of acquired intangible assets, IAS 19 pension costs, and acquisition and restructuring costs. In plain English, this is management's preferred measure of profit from normal operations before tax and selected exceptional or non-cash items.

The Board said the current FY26 market consensus was £108.9 million of revenue and £10.9 million of underlying profit before tax. Alumasc's expected figures are slightly below those numbers, although the company describes the outcome as broadly in line with revised consensus.

Why the 49% order book increase matters

The strongest feature of this update is the order book, which ended June 2026 at 49% above its level one year earlier.

Management attributes this improvement to a refocused commercial strategy, better operational efficiency and stronger service levels. These are self-help measures, meaning actions within Alumasc's control rather than a reliance on improving market conditions.

A larger order book can provide better visibility over future activity, but investors should distinguish orders from recognised revenue. Alumasc has continued to experience delays in project decisions, customer call-offs and the conversion of its pipeline into sales.

The order book growth is therefore encouraging, but the pace at which those orders turn into revenue and profit will be an important point to watch in FY27.

Mixed performance across Alumasc's divisions

Housebuilding Products

Housebuilding Products was the standout performer, with revenue growth of approximately 16% compared with FY25.

This was achieved despite weak volumes among housebuilders. Alumasc says the division gained market share through customer service and new product development initiatives.

That combination suggests the improvement was not simply the result of a helpful market. It indicates that the division performed well within a difficult environment, although detailed revenue and profit figures for the segment were not disclosed.

Building Envelope

Building Envelope revenue was similar to FY25.

Management described the performance as resilient given volatility in customer demand and the supply chain. Strong customer relationships and technical expertise helped the division manage those conditions.

Flat revenue may not sound exciting, but maintaining sales in a subdued commercial construction market compares favourably with the sharper decline reported in Water Management.

Water Management

Water Management remains the main area of concern. Revenue fell by approximately 16% against FY25, although the decline was around 3% when sales from the CLK airport project in Hong Kong were excluded.

The division faced both weak market conditions and a demanding comparison with the prior year, when the CLK contract contributed significant revenue. Lower UK sales were partly offset by increased overseas volumes.

Management believes there are opportunities to improve productivity, costs and overall performance. Commercial and operational initiatives are already underway and will continue into FY27, with an initial positive impact reported.

Further detail is needed before investors can judge the potential scale and cost of these changes. The company has not disclosed specific savings targets, restructuring charges or a timetable for restoring divisional performance.

Balance sheet provides some reassurance

Alumasc expects year-end net debt of approximately £7 million, equivalent to net bank debt leverage of around 0.5 times.

Leverage compares net bank debt with a measure of annual earnings. A lower multiple generally indicates greater financial headroom, although the precise calculation used here was not disclosed in the announcement.

Management said the balance sheet remained robust despite a temporary increase in working capital. This reflected the timing of shipments for the CLK project and additional buffer stocks held to manage volatile input costs and longer supply lead times linked to the Middle East conflict.

The low leverage figure is helpful because Alumasc is trying to improve Water Management while operating against uncertain demand. It gives the group more flexibility than it would have with a heavily indebted balance sheet.

What are the positives for investors?

The 49% increase in the order book is the clearest positive. It suggests the commercial strategy and service improvements are beginning to produce results, even though market conditions remain weak.

Housebuilding Products also delivered strong growth and market share gains, while Building Envelope maintained revenue. These performances show that not every part of the group is moving in the same direction as the headline profit decline.

Finally, net bank debt leverage of approximately 0.5x leaves Alumasc entering FY27 with what management describes as a strong financial position.

What are the risks?

The expected fall in underlying profit before tax is much steeper than the revenue decline, pointing to pressure on profitability. Based on the approximate figures provided, the underlying pre-tax margin would fall from around 12.4% to 9.3%.

Water Management also requires improvement. Excluding the CLK comparison makes its revenue decline look less severe, but the division was still behind the prior year and has been particularly affected by adverse conditions.

More broadly, affordability concerns, planning constraints and fragile customer confidence continue to delay projects. Alumasc is taking a prudent view of the macroeconomic environment, so the larger order book should not automatically be treated as a guarantee of rapid growth.

The bottom line

This is a mixed update. Alumasc has weathered a difficult final quarter, but FY26 revenue and profit are still expected to decline, with Water Management the obvious weak spot.

The counterweight is a much stronger order book, good performances from Housebuilding Products and Building Envelope, and modest leverage. September's audited results should provide more detail on margins, cash flow and the initiatives intended to improve Water Management.

For now, the central investor question is whether Alumasc can convert its 49% order book growth into revenue and rebuild profitability during FY27.