Public-sector construction risk after the Procurement Act.
For contractors working on public-sector projects, the Procurement Act 2023 is not only a tendering issue. It changes the wider risk environment in which performance, exclusion, debarment and future public-sector access are assessed. Public-sector construction work is often commercially demanding. Projects are high visibility, process-heavy and document-sensitive. They are frequently subject to detailed procurement rules, public accountability, reporting obligations, audit scrutiny and formalised contract administration. Performance issues, disputes, delay, termination events, payment conflict and compliance failures may have consequences beyond the immediate project.
For Legalbuild clients, the practical point is clear: a poorly managed public-sector project may not only weaken recovery on that project. It may also affect the contractor’s future credibility, eligibility and risk profile in public-sector procurement. The project record therefore matters in two ways. It may support payment, delay, variation and final account entitlement. It may also help protect the contractor’s wider position if performance is later questioned.
Why the Act matters commercially
The Procurement Act 2023 came into force on 24 February 2025 and introduced a reformed public procurement regime, including stronger rules on supplier exclusion and a central debarment framework. The government’s exclusions guidance explains that the regime enables, and where appropriate requires, contracting authorities to exclude suppliers where they pose particular risks to public procurement, including by reference to recent past behaviour and circumstances.
That matters because supplier conduct and performance may now sit within a wider procurement risk assessment. The Act contains mandatory and discretionary exclusion grounds. The government guidance states that contracting authorities must consider both when assessing whether a supplier is excluded or excludable. Those grounds are not limited to criminality or corruption. The guidance refers to risk categories including insolvency, misconduct, poor performance, labour market and environmental misconduct, threats to national security and other public procurement risks.
For construction contractors, this is commercially important because project delivery disputes can create a record. If that record is incomplete, imprecise or one-sided, the contractor may be vulnerable to a narrative that it performed poorly, failed to comply, did not cooperate, or caused project failure.
Debarment changes the risk profile
The debarment regime is the sharper development. The government’s Debarment Review Service guidance states that contracting authorities must notify the service if they have excluded, replaced or removed a supplier from a public procurement procedure and identify the applicable exclusion grounds, subject to the relevant statutory exceptions. Government debarment guidance explains that debarment is centrally managed and closely linked to exclusion, because a supplier can only be considered for debarment if mandatory or discretionary exclusion grounds apply and the relevant circumstances are continuing or likely to occur again.
That changes the commercial significance of public-sector performance disputes. A dispute with a public authority is no longer only about extension of time, loss and expense, payment, defects or termination. In the wrong circumstances, it may also create procurement consequences. The contractor may need to protect its record not only for adjudication or final account recovery, but also for future market access. For contractors that rely on public-sector work, that is a strategic risk.
Why performance narratives matter
Construction disputes often turn on competing narratives. An employer may say the contractor failed to progress, failed to resource, failed to coordinate, failed to comply, failed to meet quality standards or failed to deliver. The contractor may say the project was affected by late information, change, access problems, employer risk events, design development, payment failures, approvals delay or unrealistic procurement assumptions. On an ordinary project, that narrative may affect the final account or adjudication. On public-sector work, it may also affect how the contractor is viewed in later procurements.
This is why public-sector contractors need a disciplined evidential approach. A general assertion that “the employer caused delay” will not be enough. The contractor should be able to show:
what the contract required;
what information was due;
what was actually provided;
what changed;
what notices were issued;
what programme activities were affected;
what was outside the contractor’s control;
how the contractor responded;
what mitigation was attempted;
how the contractor acted consistently with the contract.
That is not just dispute preparation. It is reputational protection.
Where construction risk may arise
The Act is particularly relevant because public-sector construction projects often involve multiple points of potential friction.
Poor performance allegations: Poor performance is one of the most commercially sensitive areas. Where a project is delayed, disrupted or disputed, the contractor needs evidence to explain whether the issue was genuinely contractor default or whether the cause sat elsewhere.
This may include employer changes, late design information, access constraints, instruction delays, approval delays, utilities, interface issues, variations, payment problems or defects allegations that are not properly substantiated.
Without evidence, the authority’s version of events may become the dominant record.
Termination and replacement risk: Termination on a public-sector project can have consequences beyond the immediate contract. If a contractor is terminated, replaced or removed in circumstances connected to exclusion grounds, the matter may have to be notified within the public procurement framework. The Debarment Review Service guidance specifically refers to notification where suppliers are excluded, replaced or removed from a public procurement procedure.
For contractors, termination correspondence, warning notices, cure periods, default notices and response records should therefore be managed with particular care.
Compliance and labour misconduct: The exclusions guidance identifies categories including labour market misconduct and environmental misconduct. For construction contractors, that makes compliance systems more than back-office administration. Supply chain controls, labour practices, health and safety records, environmental compliance, modern slavery processes and subcontractor management may all form part of a broader risk profile.
Connected and associated parties: The exclusion regime can also bring connected or associated persons into focus. The CMA has noted, in the competition context, that suppliers can be excluded where an exclusion ground applies to a connected or associated person, including directors, parent or subsidiary companies and key subcontractors.
For construction, that matters because delivery often depends on complex subcontractor, group-company and supply-chain structures. Contractors should understand whether the conduct of key delivery partners could create risk in future public-sector procurement.
Competition and bid conduct: The Act introduced significant exclusion and debarment consequences for competition misconduct, including cartel activity. The CMA explains that suppliers involved in bid-rigging, price fixing or market sharing risk exclusion and possible debarment, subject to self-cleaning and other relevant considerations.
For contractors bidding in frameworks, alliances, joint ventures or supply chain arrangements, bid discipline and competition compliance should be treated as procurement risk controls, not merely legal formalities.
Why this matters before the contract is signed
Public-sector risk should be reviewed before the contractor signs the contract, not only when a dispute arises.
Contractors should look carefully at:
performance obligations;
KPIs and service-level obligations;
default and termination provisions;
cure periods;
warning notice mechanisms;
audit rights;
reporting requirements;
key personnel obligations;
supply chain obligations;
social value commitments;
health and safety obligations;
environmental obligations;
payment and certification procedures;
dispute escalation procedures;
record-keeping requirements;
final account and handover obligations.
A contractor may win a public-sector contract on price, but later discover that the reporting, compliance, performance and default framework creates a level of exposure that was not properly priced or governed. That is the commercial risk Legalbuild clients need to avoid.
The practical message for contractors
The practical lesson is that contractors working in the public sector should manage contractual performance, records and disputes with future procurement risk in mind. That means project issues should be documented carefully and contemporaneously. Employer instructions, design changes, compensation events, relevant events, payment disputes, delay causes, warning notices, defects allegations, termination threats and escalation correspondence should be managed with precision.
If a dispute later arises, the contractor may need to show not only that it had entitlement, but that it acted properly, transparently and consistently with the contract. This is particularly important where the contractor is accused of poor performance. A poorly evidenced response may leave the narrative to be shaped by the contracting authority. A disciplined record allows the contractor to explain what happened, why it happened, what was outside its control, what it did to mitigate the issue and how it acted to protect delivery. The contractor’s response should therefore be structured, not reactive.
What a stronger contractor position looks like
A stronger public-sector contractor position will usually include four elements.
First, clear contract administration. Notices should be issued when required, in the correct form, to the correct recipient and within the required time. Public-sector clients may be process-driven, and contractors should assume that procedural discipline will matter.
Second, evidence of cause and responsibility. If delay or disruption occurs, the record should identify the cause, the responsible party, the affected activity, the programme consequence and the contractual basis for relief.
Third, controlled escalation. Disputes, performance allegations and termination threats should not be allowed to develop through informal correspondence alone. The contractor should respond clearly, reserve its position where necessary and avoid admissions or loose language that may be used later.
Fourth, future-facing reputation management. Where an issue could be characterised as poor performance, the contractor should create a clear factual record showing cooperation, mitigation, corrective action and contractual compliance.
Legalbuild’s view
For Legalbuild, the Procurement Act reinforces the importance of commercial governance on public-sector construction work. The risk is not limited to losing money on one project. For contractors that rely on public-sector opportunities, the wider risk includes eligibility, reputation, future tender scoring, exclusion risk and potential debarment exposure. That makes live-project discipline essential. Contract administration, notice strategy, evidence capture, programme analysis, payment management and escalation control need to operate together. A dispute should not be allowed to become an unmanaged narrative about poor performance. Public-sector construction risk now needs to be managed with a wider lens. The project record may matter not only for payment or adjudication, but for future procurement standing. The conclusion is direct: contractors working for public authorities should treat performance evidence as a strategic asset. It protects entitlement on the project, but it may also protect access to future work.
Source note: This article is based on the Procurement Act 2023, government guidance on exclusions, government guidance on debarment and the Debarment Review Service. Government guidance states that contracting authorities must consider mandatory and discretionary exclusion grounds when assessing suppliers, and the Debarment Review Service guidance explains notification requirements where suppliers are excluded, replaced or removed from a public procurement procedure.
