December 10, 2025
Signing a building contract is a major milestone in your home-building journey. It’s exciting—but it’s also the point where clarity matters most. The right questions can protect you from unexpected costs, delays, and stress later on. Before you commit to a builder, make sure you fully understand what you’re agreeing to and who you’re trusting with one of your biggest investments.
Here are the top questions you should always ask your builder before signing a contract.
1. Are You a Licensed and Registered Builder?
Start with the basics. Ask whether the builder is a Licensed Building Practitioner (LBP) and a Registered Master Builder. These credentials indicate that the builder meets industry standards and is qualified to carry out residential construction work in New Zealand.
Also ask how long they’ve been operating and whether they can provide examples of completed projects similar to yours.
2. Is This a Fixed-Price Contract?
One of the most important questions is whether the contract is fixed price or an estimate. A fixed-price contract gives you cost certainty and protects you from surprise variations and budget blowouts.
Ask what is included in the price and what might trigger additional costs. Make sure everything—materials, labour, fittings, and council fees—is clearly listed.
3. What Is Included and Excluded in the Build?
Never assume. Ask your builder to walk you through the full specification list. This should cover:
- Materials and finishes
- Appliances and fittings
- Landscaping, driveways, fencing
- Council fees and inspections
Understanding inclusions and exclusions upfront prevents misunderstandings later.
4. What Guarantees and Warranties Do You Provide?
A reputable builder should offer strong protection. Ask if the build is covered by a Master Build 10-Year Guarantee, along with a workmanship warranty.
These guarantees protect you against structural defects, weather-tightness issues, and even builder insolvency—long after construction is complete.
5. How Long Will the Build Take?
Ask for a realistic build timeframe and whether it’s written into the contract. Clarify:
- The expected start and completion dates
- What happens if there are delays
- Whether penalties or compensation apply if timelines aren’t met
Clear timelines help you plan your move and avoid extended rental costs.
6. Who Will Manage My Project Day to Day?
Find out who your main point of contact will be. Will it be the builder, a site manager, or a project manager? Regular communication is key to a smooth build, so ask how often you’ll receive updates and site progress reports.
7. Can I Visit Past or Current Projects?
A confident builder will have no problem showing their work. Ask to:
- Visit completed homes
- Tour active building sites
- Speak with past clients
This gives you firsthand insight into workmanship, site organisation, and overall build quality.
8. How Do You Handle Variations?
Changes happen—but how they’re handled matters. Ask:
- How variations are priced
- Whether changes are approved in writing
- How they affect the build timeline
A clear variation process prevents disputes and unexpected costs.
Choosing the right builder is about more than price—it’s about trust, transparency, and protection. Asking these questions before signing a contract ensures you know exactly what to expect and who you’re working with.
A builder who welcomes these questions is a builder worth trusting. Take the time to get clear answers now, and you’ll enjoy a far smoother, more confident building journey.
If you’d like help reviewing a building contract or comparing builders, the team at 3C Homes is always happy to guide you.