The single biggest determinant of whether a build experience is great or terrible is the builder you choose. Same site, same plans, same budget — different builder, completely different outcome.
Here's how to choose well.
The non-negotiables — check these first
- LBP licensed. Verify on the MBIE register. Read our LBP guide if you're unsure why this matters.
- NZCB member. NZ Certified Builders is the voluntary industry body — additional standards on top of LBP. Membership is verifiable on nzcb.nz.
- HALO guarantee.NZCB members offer the HALO 10-year Residential Guarantee. If they can't offer that, you're missing the most useful homeowner protection.
- Insurance.Public liability, contract works. Ask for certificates of currency. Don't take “yeah we've got that” as an answer.
Questions to ask a builder before signing
- What's your LBP number? (Verify on register)
- Are you NZCB-registered? (Verify membership)
- Can you show me a current certificate of insurance?
- Can I see two or three recent completed projects similar to mine?
- Can I talk to two clients you've built for in the last 12 months?
- Who's actually going to manage my build day-to-day? Will I have a Project Manager?
- How do you handle variations and unexpected issues?
- What's your process if we disagree about something mid-build?
- What's included in your fixed-price contract?
- How do you communicate progress?
Red flags
If you see any of these, walk:
- No LBP number, or won't share it.If they claim it's not needed for “your kind of work”, check our LBP guide — it's legally required for most structural work.
- Cash-only or no-contract jobs. Real builders give you a written, signed contract. Cash deals are usually tax-avoidance or insurance-dodging — and you have no protection.
- Refusal to share references or recent work.Any builder with a few years of work behind them has happy clients and projects they're proud of. Stonewalling on references is a tell.
- Huge upfront deposit (more than 10%). NZCB guidance is progress payments tied to defined milestones. Big upfront deposits put you at financial risk.
- Vague or low-detail quotes.“Full renovation $185K” with no breakdown is a recipe for variations and disputes. Detailed line-itemed quotes are the standard.
- Pressure to sign quickly.Reputable builders don't close deals like used car salesmen. If you're being pressured, slow down.
Beyond the basics — the things that actually matter
Communication style
Builds run for months. You'll talk to your builder a lot. Notice how they communicate during the quoting phase — do they return calls? Send what they say they'll send? Listen, or talk over you? Communication style in pre-build IS communication style in build.
Honesty about cost
The cheapest quote isn't the best quote. Builders who deliberately under-quote to win the job then run variations to recover margin are a known industry pattern. A builder who comes in 15% higher than the cheapest quote but tells you upfront about the things the cheapest quote omitted is the one to trust.
The team they work with
Your builder is the head contractor — but they bring sub-trades (sparkies, plumbers, tilers, painters). Ask who their regular team is. Long-standing relationships with quality sub-trades is a sign of a builder who runs jobs well.
How they handle problems
Problems happen on every build — weather, supply delays, discovered issues. Ask: “What was the worst problem on a recent build, and how did you handle it?” A builder who can't name one is either lying or hasn't done enough work. A builder who explains what went wrong, what they did, and what they learned — that's your builder.
The honest summary
Choose a builder who's licensed, certified, insured, communicates well, and is honest about costs. Get references and check them. Get everything in writing. And trust the gut feel from the first meeting — if it doesn't feel right at the quoting stage, it won't feel right when you're six months into a build with no kitchen.
Finer Builds is LBP-licensed, NZCB-registered, HALO-backed, insured, and gives fixed-price contracts with weekly progress reporting. Book Your Free Consultation and judge for yourself.