What are the new working at height rules in NZ?

Under the Health and Safety at Work Amendment Bill passed on 1 July 2026, officials are developing a risk-based hierarchy of controls for working at height. The required safety measure will need to match the actual danger of the job rather than defaulting to the most expensive option. A short-duration, low-height task like a gutter repair or minor electrical maintenance won't automatically require full scaffolding, while genuinely dangerous roof work will still demand serious controls. The detailed hierarchy will be set out in regulations and an Approved Code of Practice before the changes take force on 1 April 2027.

Do I still need scaffolding for small jobs right now?

Yes — the current rules apply in full until 1 April 2027. WorkSafe's existing expectation is that you use the best reasonably practicable control for the height and duration of the work, and for most residential roof work that still means edge protection or scaffolding. Dropping controls before the new hierarchy takes legal effect exposes you to prosecution under the current Act. What you can do now is plan: price jobs booked after April 2027 with the more proportionate controls in mind once the detail is confirmed.

How much does scaffolding cost for a typical NZ house?

Residential scaffold hire typically runs $1,500–$4,500 for a single-storey home and $3,000–$8,000+ for two storeys, depending on the wrap, duration and access. That cost is exactly why the risk-based hierarchy matters: on a $300 gutter repair, scaffolding can be 10x the job price. Under the new approach, short-duration low-risk tasks should be able to use proportionate controls — a properly footed ladder, a harness system, or an EWP — where the risk assessment supports it. Estimate job-specific costs with our scaffolding hire calculator.

Are scaffolding certificates of competence changing?

Yes. As part of the same reform, scaffolding certificate of competence categories are being updated to reflect current industry practice, and a review of certificate fees will follow. If you hold a CoC or employ scaffolders, watch for the updated categories through 2026–27 — the goal is that the ticket you need matches the work you actually do, rather than legacy category boundaries.

When does the risk-based hierarchy take effect?

The Health and Safety at Work Amendment Bill passed its third reading on 1 July 2026 and comes into force on 1 April 2027. The working-at-height hierarchy of controls is being developed now as regulations and an Approved Code of Practice — once published, following that ACOP will be a legal safe harbour, meaning you're deemed compliant for that risk. Until 1 April 2027, the current Health and Safety at Work Act 2015 rules and WorkSafe guidance continue to apply unchanged.

Working at Height Rule Changes NZ 2027: Tradie Guide

Falls from height are the biggest killer on NZ work sites — and the rules around them are getting their first major rewrite in over a decade. From 1 April 2027, height safety moves to a risk-based hierarchy of controls: the required safety measure must match the actual danger of the job.

What's changing

Today, the practical default for much residential work at height is scaffolding or full edge protection, whatever the job size. The reform — part of the Health and Safety at Work Amendment Bill passed 1 July 2026 — replaces that with a proportionate approach:

Short, low-risk tasks (a gutter repair, minor electrical maintenance at height) won't automatically require scaffolding
High-risk work (full re-roofs, steep pitches, long-duration jobs) still demands serious controls
The detail arrives as regulations and an Approved Code of Practice — which, under the amended Act, becomes a legal safe harbour: follow it and you're deemed compliant

Scaffolding certificate of competence categories are also being updated to match modern practice, with a fee review to follow.

What it means for your quoting

Scaffold hire on a single-storey home runs $1,500–$4,500 (estimate it here). On small jobs that's often more than the work itself — one reason so many minor repairs get deferred or done cash-in-hand with no controls at all. A proportionate regime should make small height jobs quotable again while keeping real protection on dangerous work.

From April 2027, expect competitive quoting on small height jobs to hinge on a documented risk assessment: the tradie who can show why a harness or EWP was the right control wins the job the scaffold-defaulter can't price.

What applies right now

Everything currently in force stays in force until 1 April 2027. WorkSafe is enforcing the existing Act and its guidance today. Stripping back controls early isn't "getting ahead of the change" — it's a prosecution risk.

What you can do now:

Document your height risks properly. A falls-from-height entry belongs in every builder's, roofer's and painter's critical risk register — build one free with our Critical Risk Register Generator.
Watch for the working-at-height ACOP. Once published, adopting it word-for-word is the cheapest legally-solid position available.
Plan 2027 pricing. Jobs booked past April 2027 may carry very different access costs — flag it in long-lead quotes.

For the full picture of the reform — critical risks, the small business exemption, ACOPs — see our guide to the 2026 health and safety law changes.

Working at Height Rules Are Changing — What NZ Tradies Need to Know

What's changing

What it means for your quoting

What applies right now

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