10 Construction contract clauses contractors should never ignore

That contract sitting in your inbox could be worth hundreds of thousands of pounds. But have you checked what you're actually agreeing to?

Winning a construction project is one thing. Delivering it profitably is another.

A contract can contain obligations that affect your cash flow, programme, profitability and exposure to risk.

Overlooking the small print could turn a promising project into a commercial headache.

At Daedalus Consultancy, we believe understanding the contract before you sign is just as important as getting the tender price right.

Here are 10 clauses every contractor should pay close attention to.

1. Payment Terms

When will you actually get paid?

Check payment dates, application deadlines, payment notices and final dates for payment. Late payment can put pressure on cash flow, particularly when you still need to pay labour, suppliers and subcontractors.

2. Retention

How much of your money will be held back, and when will it be released?

Check the retention percentage, release milestones and any conditions attached to payment. Understand how long your money could remain tied up after the work is completed.

3. Liquidated Damages

What happens if you finish late?

Liquidated damages provisions can expose contractors to significant costs if completion deadlines are missed. Check the rate, the relevant completion date and how extensions of time are dealt with.

4. Extensions of Time

What happens when delays occur outside your control?

Check the circumstances in which you can claim an extension, the notice requirements and the deadlines for submitting supporting information. Missing a contractual notice requirement could put your position at risk.

5. Variations and Additional Work

If the client changes the scope, how will you get paid?

Check how variations must be instructed, valued and agreed. Carrying out additional work without following the contract's procedures can make recovering the associated costs more difficult.

Never assume that extra work automatically means extra payment.

6. Set-Off and Deductions

Can the client deduct money from your payments?

Understand the circumstances in which deductions may be made and the notice procedures that apply. Unanticipated deductions can have a serious impact on cash flow.

7. Scope and Specification

Are you clear about exactly what you're being asked to deliver?

Check the scope, drawings, specifications, exclusions and any documents incorporated into the contract. Pay particular attention to inconsistencies and obligations that weren't included in your original tender price.

8. Design Responsibility

Are you taking responsibility for design work?

Even where a contractor isn't appointed as the designer, the contract may impose design-related obligations. Check what you are responsible for, including subcontractor design, coordination and compliance requirements.

9. Termination and Suspension

What happens if the relationship breaks down or payment stops?

Review the circumstances in which either party can terminate or suspend the contract, along with any notice and remedy periods. Understand the potential financial consequences of termination, including payment for completed work and outstanding commitments.

10. Liability and Indemnities

How much financial risk are you taking on?

Check indemnities, liability caps, exclusions of liability and insurance requirements. Make sure you understand the extent of your exposure and whether it is proportionate to the value and nature of the project.

The Bottom Line

A construction contract isn't just paperwork. It's a commercial agreement that can determine whether a project delivers the profit you expected — or exposes your business to risks you hadn't priced for.

The key is to identify potential problems before signing, when you still have the opportunity to seek clarification and negotiate changes where appropriate.

Need your construction contract reviewed?

At Daedalus Consultancy, we provide practical construction contract reviews to help contractors identify commercial risks, understand their obligations and highlight terms that may need clarification or negotiation.

Whether you've been sent a subcontract, a main contract or a set of terms and conditions, getting a second pair of eyes on the paperwork could help you make a more informed decision.

📩 Get in touch with Daedalus Consultancy before you sign.

Tender smarter. Contract better. Protect your margin.

This article provides general information, not legal advice. The effect of individual clauses depends on the contract wording, the applicable law and the circumstances of the project.