Subcontractor Insolvency: Early Warning Signs and What to Do

The Pattern Is Predictable

I have seen subcontractor insolvency play out on multiple projects across my career. The details vary, but the pattern is remarkably consistent. A subcontractor who was performing well begins to slow down. Quality dips. Their site team changes. Payment claims start arriving earlier or for larger amounts than the work completed would justify. Their responses to correspondence become delayed or defensive.

Then one Monday morning, you arrive on site and their team is not there. Or you receive a letter from a liquidator.

By that point, the damage is done. The question is whether you saw it coming and took steps to protect the project, or whether you were caught off guard.

Subcontractor insolvency rarely arrives without warning. The signs are visible for weeks or months before the formal event. The firms that protect themselves are the ones that know what to look for and have a system to track it.

The Seven Warning Signs

These are the indicators I have learned to watch for across 10 years of managing construction projects. Any one of them on its own might have an innocent explanation. Three or more appearing together should trigger a formal risk assessment.

1. Slowing progress without explanation. The programme shows them falling behind, but the reasons given are vague. "Waiting on materials." "Resourcing next week." When a subcontractor who was tracking well begins to miss milestones without a credible reason, that is the first flag. Check whether they are diverting resources to other projects because cash is tight.

2. Declining quality of workmanship. This often follows the resource issue. They bring in cheaper labour, less experienced crews, or fewer people than the work requires. Defect rates increase. Rework becomes frequent. The site supervisor starts spending more time on their package than they should need to.

3. Late payments to their own suppliers and sub-subcontractors. This is one of the strongest early indicators. When suppliers start calling your site office asking when they will be paid, or when sub-subcontractors raise concerns about overdue invoices, the subcontractor's cash flow is under stress. Under the Construction Contracts Act 2002, those unpaid parties have their own rights, including the ability to suspend work.

4. Inflated or premature payment claims. A subcontractor under financial pressure will often claim ahead of work completed, overstating progress percentages or including materials not yet delivered to site. If you notice a pattern of claims being significantly higher than your own assessment of work done, investigate.

5. Key staff departures. People inside a struggling business often see the writing on the wall before external parties do. When a subcontractor's contracts manager, project manager, or senior site supervisor resigns, ask why. High turnover in key roles is a strong signal.

6. Changes in correspondence tone and speed. Responses that used to come within a day now take a week. The tone shifts from collaborative to defensive or legalistic. Requests for information go unanswered. This pattern often indicates that the business is managing multiple fires and your project is no longer their priority.

7. Requests to change payment terms. Asking for accelerated payment, requesting advance payments for materials, or proposing changes to the payment schedule mid-contract. Any attempt to pull cash forward is a warning that current cash flow is not covering current commitments.

If you are seeing three or more of these signs from the same subcontractor, do not wait for confirmation. Start your contingency planning now. By the time a liquidator is appointed, your options are significantly reduced.

What to Do When You See the Signs

Acting early is the difference between a managed problem and a crisis. Here is the practical sequence.

Assess the contract position. Review the subcontract. What are your termination rights? Under NZS 3910, Clause 14.2 provides for termination where the contractor has committed a substantial breach. Check whether the subcontract mirrors the head contract provisions or has different termination triggers. Understand what notice periods apply and what your obligations are upon termination.

Tighten your payment assessment process. Be rigorous about valuing work actually completed. Do not certify work that has not been done. Ensure your payment schedules under the CCA are issued on time and accurately reflect the value of work completed. This protects your position if the subcontractor later challenges your assessments through adjudication.

Check your bond and guarantee position. If a performance bond is in place, understand the call conditions. Most bonds require a default to have occurred before they can be called. Confirm the bond is still valid and has not expired. If a parent company guarantee exists, assess the parent company's financial position as well.

Start contingency procurement. Identify alternative subcontractors who could complete the work. Get indicative pricing. Understand lead times for mobilisation. You do not need to appoint anyone yet, but you need to know your options and the cost of re-procurement. That cost informs your decision about when to act.

Notify your principal. If the subcontractor's performance is likely to affect the head contract programme, notify the Engineer to the Contract early. Under the head contract, you may have obligations to notify potential delays. Early communication also protects the relationship and allows collaborative problem-solving.

The cost of acting a month too early on a subcontractor insolvency risk is almost always less than the cost of acting a week too late. Re-procurement from a standing start, after the subcontractor has walked off site, is significantly more expensive than a planned transition.

Build the Early Warning System

The firms that handle subcontractor insolvency well are not the ones with the best crisis response. They are the ones who never get to crisis in the first place because they have a system that tracks the warning signs continuously.

That means tracking payment claim patterns against assessed values. Monitoring programme progress against baseline and investigating deviations. Maintaining awareness of supplier payment complaints. Flagging correspondence response time changes. Connecting these data points so that when three or four indicators align, someone is alerted before the situation becomes critical.

Most project teams do some of this intuitively. A good site manager has a feel for which subcontractors are struggling. But intuition is not a system. It does not work across multiple projects. It does not survive staff changes. And it does not provide the early warning that gives you enough time to act.

For a broader view of how to structure your approach to risk across a project, see our guide to construction risk management in NZ. And for what happens when a builder does go into liquidation, including the immediate steps to protect your position, read our article on builder liquidation in New Zealand.