Scaffolding on residential properties in New Zealand is governed by WorkSafe NZ regulations designed to protect workers, tradespeople, and homeowners alike. Whether you're having your house painted, re-roofed, or re-clad, understanding these rules helps you make safe decisions and avoid legal liability.
The Legal Framework: Health and Safety at Work Act 2015
The primary legislation covering scaffolding safety is the Health and Safety at Work Act 2015 (HSWA). Under this Act, anyone who influences or controls a workplace — including a homeowner who engages contractors — can be considered a Person Conducting a Business or Undertaking (PCBU). This means residential property owners have real legal obligations when work is carried out on their home.
WorkSafe NZ provides detailed guidance on these duties, including how they apply to domestic situations. As a homeowner, your primary duty is to ensure you engage competent contractors and don't create conditions that put workers at risk.
Key WorkSafe NZ Scaffolding Regulations
The specific rules for scaffolding come from the Health and Safety at Work (General Risk and Workplace Management) Regulations 2016 and WorkSafe NZ's scaffolding guidance and approved codes of practice. Here are the most important points for residential work:
Height Thresholds
- Any scaffolding over 5 metres in height must be erected, altered, or dismantled by a certified scaffolder — someone holding a relevant unit standard or trade certificate.
- Scaffolding between 5 and 10 metres requires a Scaffolding Certificate of Competence (CoC) at the appropriate level.
- Scaffolding over 10 metres requires a higher-level CoC and, in many cases, a design certificate or engineer's sign-off (confirm requirements with your scaffolder or WorkSafe NZ).
- Below 5 metres, competency is still required, but formal certification is not mandated — though using a qualified professional is always recommended.
Handover Certificates
For scaffolding over 5 metres, a handover certificate must be completed before anyone uses the scaffold. This document confirms the structure has been inspected and is safe to use. Keep a copy on site.
Regular Inspections
Scaffolding must be inspected:
- Before first use
- At least every 30 days while in use
- After any event that could affect its integrity (e.g., high winds, impact)
Inspection records must be kept and be available on site.
Edge Protection and Fall Prevention
WorkSafe NZ requires edge protection wherever there is a risk of falling more than 1 metre. On most residential sites, this means guardrails, mid-rails, and toe boards must be fitted to working platforms. This is non-negotiable — falls from height are one of the leading causes of serious injury and death in the NZ construction industry.
Homeowner Responsibilities
Even as a domestic client, you have responsibilities under the HSWA:
- Engage competent contractors — ask for proof of certification and experience.
- Don't interfere with scaffolding once erected — don't remove guardrails or allow children to climb on it.
- Communicate hazards on your property (e.g., underground services, unstable ground, overhead power lines).
- Overhead power lines near your home are a serious hazard. WorkSafe NZ requires safe distances to be maintained, and your scaffolder should assess this before starting. Contact your lines company if in doubt.
What About DIY Scaffolding?
Homeowners sometimes consider hiring or buying scaffolding frames for DIY projects. While this isn't outright prohibited for work under 5 metres, it carries significant risk. You must still ensure the scaffold is erected correctly, is stable, and has appropriate edge protection. If you're hiring a contractor to do the work, the scaffolding responsibility generally sits with them as the PCBU on site.
For anything above 5 metres — which includes most two-storey homes — you must use a certified scaffolder. Attempting to erect this yourself or using an uncertified person is illegal and dangerous.
Scaffolding Near Boundaries and Public Spaces
If scaffolding extends over a footpath, road, or neighbouring property, you'll likely need a permit from your local council as well as compliance with WorkSafe rules. Always check with your council before work begins. MBIE Building Performance can also provide guidance on consent requirements related to building work.
A Quick Reference: Scaffolding Height Rules
| Height | Certification Required | Handover Certificate |
|---|---|---|
| Under 5 m | Competency expected, no formal CoC required | Not mandatory |
| 5 m – 10 m | Scaffolding CoC required | Yes |
| Over 10 m | Higher-level CoC + possible design cert | Yes |
When to Call a Professional
You should always engage a certified scaffolder for:
- Any scaffolding over 5 metres high
- Work on two-storey or multi-level homes
- Scaffolding near power lines or boundaries
- Complex roof shapes or steep sites
- Any project where a handover certificate is required
A qualified scaffolder will assess your site, erect a compliant structure, provide the necessary documentation, and dismantle it safely when the job is done. You can find experienced, local scaffolders on tradedirectory.co.nz.
Don't cut corners on scaffolding — the consequences of a fall can be life-changing for workers and financially devastating for homeowners found to have breached their HSWA duties.
