Ardmore's Collapse Is a Warning: Every Builder You Hire from 1 July Can Claim Unfair Dismissal by January

On 11 June 2026, Ardmore Construction Group — a £350 million turnover firm with 500-plus employees and ten active London projects — collapsed into administration. Within days, replacement contractors were on site, absorbing Ardmore's workers into new contracts. From 1 July 2026, every one of those workers — and every new site operative, scaffolder, and groundworker hired anywhere in the UK — will be entitled to claim unfair dismissal after just six months in post. Not two years. Six months. If you hire anyone from 1 July, you could face an employment tribunal claim by January 2027.

This is not a distant risk. It is 16 days away. And the construction sector, which already runs employment tribunal claims 12% above the cross-sector average, is in the direct line of fire.

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What Happened to Ardmore — and Why Every Construction Employer Should Be Paying Attention

Ardmore Construction Group was not a struggling SME. It was a top-100 UK contractor, with an impressive project portfolio spanning residential towers, commercial developments, and major public sector contracts across London. Its administration on 11 June 2026 froze ten live sites overnight, stranding sub-contractors, suppliers, and more than 500 directly employed workers.

Replacement contractors — De Group, RED Construction, and TSL among them — moved quickly to take over projects and absorb staff. For those firms, the immediate priority was continuity. Employment compliance, in the chaos of a site handover, can easily fall through the gaps.

That is precisely the moment when employment law liabilities crystallise.

The Ardmore collapse illustrates something bluntly: employment liability is not a back-office concern. It is a balance sheet risk. A single ET claim for unfair dismissal can cost an employer £25,000 in compensation plus legal fees. A cluster of claims following a restructure or site takeover can run into six figures. The firms absorbing Ardmore's workforce right now are accumulating exposure — and many of them do not yet know it.

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The Unfair Dismissal Hire-Date Trigger: What Changes on 1 July 2026

Under current employment law, a worker needs two years of continuous employment before they qualify for unfair dismissal rights. That two-year qualifying period has been a significant protection for employers managing probationary periods, performance reviews, and seasonal or project-based hiring.

From 1 July 2026, the qualifying period drops to six months for workers hired on or after that date. This is the most significant change to UK employment law in a generation, and it lands in the middle of the summer construction surge.

What This Means in Practice

• Any worker you hire on or after 1 July 2026 can bring an unfair dismissal claim after six months of continuous employment — meaning claims from January 2027 onwards.
• Workers hired before 1 July retain the existing two-year qualifying period. The rule is tied to the hire date, not the dismissal date.
• Dismissal for capability, conduct, redundancy, or any other reason must be demonstrably fair and procedurally correct from month one — not month twenty-three.
• A poorly documented probationary review carried out in month three will be exhibit A in a tribunal claim filed in month seven.

The shift from two years to six months is not a minor adjustment. It fundamentally changes the risk profile of every hiring decision made from 1 July onward.

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Why Construction Is the Highest-Risk Sector

Employment tribunal (ET) claims in the construction sector already run 12% above the UK cross-sector average. There are several structural reasons for this:

• Project-based working: Workers are often hired quickly for a project and dismissed just as quickly when the project ends. The circumstances of termination are frequently disputed.
• Sub-contractor chains: Employment status — whether someone is employed, self-employed, or a worker — is contested more often in construction than almost any other sector. Misclassification is a trigger for claims.
• Site transfers and TUPE: When a contractor takes over a site, Transfer of Undertakings (Protection of Employment) Regulations may apply. Firms absorbing Ardmore's workforce need to take urgent advice on TUPE implications.
• Probation documentation gaps: Paper-based probation reviews, informal check-ins, and verbal feedback have been tolerated when dismissal was protected by the two-year rule. That protection disappears on 1 July.

The sector's hiring surge compounds the problem. Spring and summer are peak hiring months in construction. Sites that lost Ardmore workers are now hiring replacements at pace. Every single hire from 1 July 2026 is a potential ET claimant by January 2027.

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What a Compliant Probation Process Looks Like from 1 July

The six-month qualifying period means your probation process is no longer a formality — it is your legal defence. Here is what you need in place for every hire from 1 July:

1. Written Probation Policy in the Employment Contract

The employment contract must set out the length of the probationary period (typically three to six months), the review process, and the grounds on which employment may be terminated during or at the end of probation. Verbal agreements are not sufficient.

2. Documented Mid-Probation Review

At the halfway point, conduct a formal review and record it in writing. Document performance against clear objectives, any concerns raised, and any support offered. Both parties should sign. This creates a contemporaneous record that the process was fair.

3. End-of-Probation Decision in Writing

Whether you confirm employment, extend probation, or dismiss, document the decision and the reasons. If dismissal is for performance or conduct, the paper trail must show the issue was identified, the worker was told, support was offered, and the decision was reasonable.

4. A Right to Appeal

From 1 July, best practice (and in many cases legal requirement under the statutory dismissal procedure) is to offer a right of appeal against probationary dismissal. Include this in your probation policy and document any appeal hearing.

5. Evidence Stored and Retrievable

An ET claim filed in January 2027 will ask for records from the previous six months. If your probation reviews are on paper in a site hut, or in a manager's email inbox, you may struggle to produce them. Your evidence needs to be organised, dated, and accessible.

ComplianceAlert's Action Centre includes a Unfair Dismissal probation checklist template built for post-1 July hires. Activate it, work through the checklist, and your evidence is stored automatically in the Evidence Vault — ready to export as an Inspection Pack if a claim ever lands. Try it free at compliancealert.co.uk/construction →

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What Firms Absorbing Ardmore Workers Need to Do Now

If you are one of the contractors that has taken on former Ardmore employees in the wake of the June 11 collapse, you face a specific and urgent set of obligations:

1. Establish the TUPE position. If Ardmore's workforce transferred to you as part of a going concern (which is likely for workers assigned to ongoing projects), TUPE applies. Their existing terms and conditions transfer automatically. Changing them unilaterally is a breach of contract and a potential ET claim trigger.
2. Issue new contracts promptly. Workers are entitled to a written statement of employment particulars on day one. If they are transferred TUPE workers, they are entitled to written notification of any measures proposed. Do not delay.
3. Audit employment status. Ardmore may have classified workers differently to how you would. A worker who was self-employed under Ardmore may have accumulated rights that transfer. Take advice before making assumptions.
4. Set up probation documentation from day one for any genuinely new hires (post-1 July). Do not carry over informal practices from the pre-1 July regime.

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The Broader Picture: Employment Rights Bill and What's Coming

The unfair dismissal hire-date trigger is the immediate crisis, but it sits within a broader Employment Rights Bill that represents the most significant overhaul of UK employment law in a generation. Among the other changes landing in 2026 and 2027:

• Zero-hours guaranteed hours rights (October 2026): Employers must offer guaranteed hours to workers regularly working beyond their contracted hours. Construction firms using flexible labour models need to review their workforce structure now.
• Third-party harassment liability (October 2026): Employers become liable for harassment of employees by third parties (clients, contractors, the public) unless they have taken all reasonable preventative steps. Site environments carry significant exposure here.
• Fair Work Agency enforcement: Already active since April 2026, the FWA has made construction a priority enforcement target for National Minimum Wage (£12.71/hr for workers 21+), holiday pay, and SSP compliance. FWA can recover unpaid wages and charge the investigation costs to the employer.

Each of these changes requires documentation, policy updates, and a structured compliance process. The window to prepare is narrowing.

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Key Takeaways

• From 1 July 2026, workers hired on or after that date can claim unfair dismissal after six months — not two years.
• The Ardmore collapse is a live example of how quickly employment liability accumulates in a volatile sector.
• Firms absorbing Ardmore workers should audit their TUPE position immediately.
• Every new hire from 1 July needs a documented probation process, mid-probation review, and evidence trail.
• Construction ET claims already run 12% above the cross-sector average — the post-July landscape will push that figure higher.
• The Employment Rights Bill creates at least three further compliance obligations landing in autumn 2026.

ComplianceAlert monitors all of these changes in real time, sends alerts when they affect your sector, and walks you through exactly what to do with guided Action Centre templates. The probation checklist is live now. Start free at compliancealert.co.uk/construction — no card required →

Need professional employment law advice for the Ardmore situation or your post-July hiring process? Find a verified employment solicitor at compliancemarket.co.uk/employment-lawyers →

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Frequently Asked Questions

Does the six-month UD rule apply to workers already employed before 1 July 2026?

No. Workers hired before 1 July 2026 retain the existing two-year qualifying period. The new six-month rule applies only to workers whose employment begins on or after 1 July 2026.

Does TUPE apply when a construction contractor takes over a project from a company in administration?

Potentially yes, depending on whether the transfer constitutes a "relevant transfer" under TUPE 2006. If Ardmore workers are continuing the same work on the same project under a new contractor, TUPE is likely to apply. Take legal advice immediately — failure to comply with TUPE obligations is a standalone ET claim ground.

Can I still dismiss a worker during their probationary period from 1 July?

Yes, provided the dismissal is fair and procedurally correct. The UD qualifying period change does not remove your right to dismiss — it removes the protection of the two-year rule. You must be able to show the reason for dismissal was fair and that a reasonable procedure was followed, including documentation, notification, and a right of appeal.

What is the maximum unfair dismissal award a construction worker could receive?

In 2026, the basic award is calculated on age, length of service, and weekly pay (capped at £643/week). The compensatory award cap is the lower of £115,115 or 52 weeks' gross pay. A mid-career site manager earning £40,000 dismissed unfairly could receive an award exceeding £30,000 before legal costs.

How does ComplianceAlert help with the UD hire-date trigger?

ComplianceAlert's Action Centre includes a post-July 1 probation compliance template. Activate it for each new hire, complete the checklist steps (contract issued, mid-probation review conducted, outcome documented), and every piece of evidence is stored in the Evidence Vault. If a claim lands, you can export your full audit pack in one click.