How to win a dispute (and avoid them in the first place)

Disputes are an unfortunate reality in residential construction. Most builders will face one, or more, at some point in their career. But the difference between winning and losing when they do often comes down to preparation, documentation and how the job was actually managed from day one. 

It’s a bit like insurance, it’s no good taking out the policy after the accident, you need to have sorted it out beforehand to ensure you’re covered if you get into trouble. 

The same issues arise time and time again. 

1. It starts at quote stage 

Unfortunately, the industry standard approach to quoting to win the job can inherently increase the likelihood of a dispute. Particularly in the renovation market. Sending the client to a designer, then quoting off the plans, reduces your ability to control the customer’s experience.  

We all know that if you’re competing on price against the other guy, it’s tempting to leave out stuff you know will need to get done once the job gets going. Then, when it comes up later, the client will be forced to pay up. This approach is much more likely to stress out your client and increase the risk of a dispute. 

2. Poorly defined scope of work 

This is the number one cause of disputes. If the scope is vague, incomplete, or open to interpretation, disagreements are much more likely. Clients assume things are included, while the builder assumes they’re not. The gap between those assumptions becomes the dispute. Unfortunately, when the scope is unclear, it’s much more likely that the Disputes Tribunal referee will rule in the homeowner’s favour. 

3. Variations not properly managed 

Changes during a build are normal, indeed in most renovation jobs they’re inevitable. But changes agreed upon without written documentation are dangerous. Verbal agreements, “we’ll sort it later” conversations, or starting variation work before approval can often lead to a payment dispute later on. Especially if you’re not invoicing those variations until the end of the job. 

4. Payment issues  

Late payments or unclear invoices are a major source of disputes. When cashflow tightens because the job has blown out, for example through unexpected variations, this cashflow pressure can tempt homeowners to look for ways to dispute payment. Especially if they have maxed out their loan from the bank. 

5. Quality expectations vs reality 

Disputes often arise where expectations aren’t aligned. Do they want a cheap job but expect a level 5 finish? What the client considers a defect may actually fall within acceptable tolerances. Without an agreement over what quality looks like, this mismatch can cause trouble. 

6. Communication breakdowns 

Many disputes aren’t about the issue itself, they’re about how it was handled. Lack of communication, delayed responses or avoidance of the problem quickly erodes trust. Unfortunately, too many builders don’t like having those challenging conversations. 

How to reduce the chance of a dispute 

The best strategy is to prevent disputes before they start. 

Trust your gut 

Sometimes there’s a nagging suspicion that something isn’t right. But you went ahead anyway. And it doesn’t turn out well. Avoiding difficult clients in the first place is a great way to minimise the risk of disputes. Do some basic background checks, including verifying that they can afford the work. Of course, sometimes even the nicest people at the start can become difficult when money is involved. 

No surprises from day one 

Builders who control the process from end to end are much more likely to have a satisfied client and substantially fewer disputes. Explain to your prospective client that you can arrange concept drawings (for a small fee) and work with them to make these achievable based on their budget. Explain all the likely costs, so they are making an informed decision from day one. 

Start with a strong contract and scope

Use a fit-for-purpose contract with a detailed scope of work. Be clear about inclusions, exclusions, provisional sums and responsibilities of both parties. If it’s not written down, assume it will be disputed. It may feel like a stink approach, but if you assume every job will turn to custard, you can usually predict what you’ll need to do upfront to avoid it. Make sure you’ve communicated the importance of the contract in protecting both parties and don’t start work until it is signed. 

Set expectations early

Discuss quality standards, timelines, and potential risks at the start. Educated clients are less likely to become difficult clients. Point out the important parts of the contract. 

Get all variations in writing

No variation should proceed without written approval. This protects both parties and removes ambiguity around cost and responsibility. 

Follow compliant payment processes

Replace invoices with payment claims that comply with the Construction Contracts Act.  This strengthens your legal position significantly if there is a dispute over payment. 

Consider using an electronic trust account to hold payments 

This is an independent service that holds the client’s money during the project. It increases trust between the parties because the client knows the builder will only get paid once they’ve done the work and the builder knows the money is there and will be paid once the work is done. The trust account can be topped up as the project progresses and payments released at agreed milestones. If there’s a dispute over the work or payment, the money stays in the trust account until the dispute is resolved. 

Train your customer to pay little and often 

Most disputes happen towards the end of the job when large sums of money are still owed. A payment schedule that is more frequent (eg. fortnightly) trains the customer to pay regularly and keeps the amounts owing more manageable. There is also less at risk towards the end of the project if an issue does arise. 

Document everything 

Keep records of emails, site meetings, instructions, and progress photos. Good documentation turns ‘he said, she said’ into evidence. 

If a dispute happens put yourself in a position to win 

Even well-run projects can end in dispute. When they do, preparation can be the difference between success and a big hole in your cashflow. 

1. Your paperwork is your secret weapon 
Builders who succeed in disputes almost always have strong documentation, signed contracts, approved variations, compliant payment claims, and clear communication trails. 

Issuing a compliant payment claim can very often result in a legally enforceable summary judgment under the CCA. 

2. Stay professional and structured 
Emotional reactions escalate disputes. Stick to the facts, refer back to the contract, and communicate clearly and calmly.  

3. Use the right process 
Whether it’s negotiation, mediation, or the Disputes Tribunal, understand the process and prepare accordingly. Each pathway rewards organised, evidence-based claims. 

4. Get expert support early 
Engaging the right support, whether that’s contract management or a dispute adviser, can dramatically improve outcomes. Many builders wait too long, by which point their position has already weakened. 

In a nutshell 

Disputes aren’t very often down to bad luck, they’re the result of gaps in systems and processes. Builders who treat the contract management process as seriously as construction work consistently have fewer disputes and better outcomes when issues arise.