Construction insolvency data: September 2026

Each month, we analyse the latest insolvency data across the UK construction sector to help firms stay ahead of risk.

Construction companies depend on long payment cycles, subcontractors and suppliers at every tier of the supply chain. So knowing which businesses are showing signs of distress can be the difference between a project delivered and a bad debt written off.

That’s why we regularly look at the latest insolvency data across the UK construction sector and publish our key findings in a monthly report.

Here’s the high-level picture and what it means for your business...

What does our insolvency data show?

September 2026 brought some relief for the sector. Construction insolvencies fell to 304 - a 21% year-on-year decrease and the first monthly fall since June 2026.

But the improvement wasn’t evenly spread, with big variations across regions and sub-sectors. And it’s worth putting that figure in context: insolvencies in construction tend to dip at this time of year, so September’s fall is a return to seasonal norms rather than a signal that the sector is out of the woods.

What does this mean for construction companies?

When a supplier, subcontractor or client fails, the impact ripples through the whole supply chain. This often results in stalled projects and unpaid invoices, leaving the remaining to absorb the cost.

And last month’s insolvencies came with plenty of warning. Many of the firms that went under had CCJs against them long before they collapsed. Construction companies that aren’t monitoring those signals across their supply chain are effectively flying blind, exposed to risks they could have seen coming and acted on sooner.

How can Red Flag Alert protect your supply chain from insolvencies?

Red Flag Alert provides risk intelligence for construction firms, helping you spot the warning signs (eg. late payments, court activity and winding-up petitions) months before a supplier or partner fails. This gives you time to adjust credit terms, diversify suppliers or protect your projects.

For the full national, regional and sub-sector breakdowns, read our September 2026 construction insolvency report.