Why contractor risk matters to lenders
The contractor is responsible for turning the lender's money into a completed building. If the contractor fails — financially, operationally, or in terms of quality — the lender's security is an incomplete construction site rather than a saleable asset. Contractor failure is one of the most significant risks in development finance, and lenders assess it carefully.
What lenders assess
- Financial strength — lenders want to see audited accounts, a healthy balance sheet, and evidence that the contractor can sustain the project through to completion. A contractor with thin margins and heavy debt is a red flag.
- Track record — has the contractor completed similar projects? Lenders look for evidence of completed schemes of comparable size, type, and complexity.
- Contract type — a JCT Design & Build contract or similar fixed-price arrangement gives the lender comfort on cost certainty. Cost-plus contracts shift cost risk to the borrower.
- Insurance — contractor's all-risk insurance, public liability, employer's liability, and professional indemnity (for design liability) must all be in place and adequate.
- Warranty provider registration — the contractor must be registered with NHBC, Premier Guarantee, or another warranty provider approved by the lender.
What happens if a contractor fails mid-build
If a contractor goes into administration during the build, the consequences include: delay while a replacement contractor is found, additional costs to complete the works (typically 10–30% premium), potential quality issues with the work already completed, and extended loan term with additional finance costs.
This is why lenders assess contractor risk upfront — prevention is far cheaper than cure. Borrowers should also consider performance bonds or parent company guarantees for additional protection.
Tips for selecting a contractor that lenders will approve
- Choose a contractor with a track record of completing similar-sized schemes.
- Review their latest filed accounts for financial stability.
- Use a standard form contract (JCT, NEC) rather than bespoke terms.
- Ensure they hold all required insurances with adequate limits.
- Confirm they are registered with a recognised warranty provider.
- Take references from previous clients and visit completed schemes.