Picking a builder can feel a bit like dating—you want someone honest, reliable, good at what they do, and who actually listens. Whether you’re building new or renovating, getting the right builder can save you a heap of time, stress, and money.
Here’s our top 10 things to think about before you sign on the dotted line:
1. Are They Licensed and Insured?
Start here. Check they’re a Licensed Building Practitioner (LBP) and that they carry proper public liability and contract works insurance. If they’re not upfront about it—red flag.
Check the LBP register here
2. Do They Offer a Guarantee?
A professional builder will offer a third-party guarantee like HALO (NZCB) or Master Build. It gives you peace of mind for up to 10 years—covering defects, non-completion, or even if the builder disappears.
3. What’s Their Track Record Like?
Ask for recent jobs, photos, and references. Better yet—talk to past clients. Find out how the build went, if there were delays or budget blowouts, and how the builder handled issues.
4. Are They Good Communicators?
You’ll be in contact with this person for months—possibly longer. Choose someone who listens, explains things clearly, and keeps you in the loop. Good builders don’t ghost you.
5. Do They Provide a Detailed Quote or Estimate?
A proper builder will give you a clear, complete quote—not just a round number scribbled on a napkin. It should outline inclusions, exclusions, timelines, and allowances. This sets the tone for the whole job.
6. Are They Local (or Willing to Travel Responsibly)?
A builder who knows the area will understand local regulations, council quirks, and supply chains. If they’re based out of town, make sure they’ve got a plan for managing the job properly on site.
7. What’s Their Specialty?
Some builders are new home pros. Others thrive on renovations. Some love architectural builds, while others prefer practical family homes. Make sure their strengths line up with your project.
8. Do They Use Quality Trades and Subbies?
Your builder might be great, but what about the plumber, sparkie, or tiler? Ask about their subcontractors—the team around them matters just as much.
9. Are They Transparent About Variations and Extras?
Changes happen—just make sure your builder explains how variations will be priced and agreed on. You don’t want a surprise invoice for something you thought was included.
10. Do They Respect Your Budget and Timeline?
A good builder won’t just say “yes” to everything—they’ll tell you what’s realistic, where you can save, and what’s worth investing in. And they’ll stick to the agreed timeline unless there’s a solid reason.
Final Thoughts from RB THOMAS LTD
Choosing a builder is one of the biggest decisions you’ll make in your building journey. Don’t rush it. Ask questions, do your homework, and go with someone you trust to treat your home like it’s their own.
If you’re after honest advice, proper systems, and no cowboy shortcuts—you know where to find us.
