How to Pay a Builder Safely in New Zealand

A renovation is the biggest payment most New Zealanders make that isn't a house. $40,000 for a kitchen and bathroom, $120,000 for an extension, and a horror-story genre to match: the builder who vanished after the deposit, the half-finished deck, the variations that doubled the invoice.

Most of those stories are really payment-structure stories. Here's how to set up the money so the job finishing is always in everyone's interest.

Before any money moves

• Get it in writing. A written contract or detailed quote covering scope, price, payment schedule, and how variations are handled. For bigger jobs, the standard NZ Certified Builders or Master Builders contracts exist for a reason.
• Check they're real. A registered company (free to check on the Companies Register), an LBP number for restricted building work (checkable on the LBP register), and recent references you actually call.
• Know the legal backstop. The Construction Contracts Act gives builders a formal payment-claim and adjudication process, and consumers have Building Act warranties that apply whether or not the contract mentions them. Good, but you'd rather never need either.

The payment structures, from risky to sane

Paying everything up front

Just don't. Not for "materials", not for a discount, not because they're busy. Once the money's gone, your only leverage is the courts. This is the single common thread in almost every "builder took my money" story.

A big deposit plus a final payment

Better, but still flawed. A 50% deposit on a $60,000 job is $30,000 of your money exposed before a nail is driven, and a single final payment means the last 10% of the job (the fiddly, slow part) has no money attached to it. Finishing becomes charity.

Progress payments against stages

The standard for a reason. You pay in chunks tied to visible, verifiable stages: foundation, closed-in, fit-off, completion. The builder gets cash flow, you never have more money out than work done, and finishing always pays.

The weakness is the trust gap at each stage: the builder wants payment before the stage is confirmed, you want the stage confirmed before payment. On paper that gap is fine. In practice it's where jobs stall into arguments.

Progress payments through escrow

Same stage structure, but each stage's money is committed up front into a neutral account and released on approval. With wlbr, you and the builder agree the stages and amounts, you fund each stage (or the whole job, released in milestones), and the builder can see the money is real before they spend a dollar on materials. You approve each stage as it's done; they get paid promptly for it; the rest stays protected.

For the builder this kills the two things they hate most: chasing payment and wondering if a new client's money actually exists. For you, it means the answer to "what if they walk off?" is "then the money never moves", rather than "then I spend two years in the Disputes Tribunal".

Deposits specifically

A deposit is legitimate when it buys materials or books the job in the calendar. What makes it safe isn't the amount, it's where it sits. A deposit paid into escrow does everything a deposit should (commits you, funds their materials) without the part where it's gone forever if they disappear. More on sizing and red flags in paying a deposit to a tradie safely.

The bottom line

Pay builders the way the work happens: in stages, against evidence, with the money visible up front and released on approval. Never let the payment structure make finishing the job optional for either of you.

Planning a renovation? Post it on wlbr task to get offers from verified local builders, with every stage's payment protected until you approve it.