Plumbers Gain More Self-certification Powers to Cut Building Delays

Skilled plumbers and drainlayers will soon be able to sign off their own work under an expanded government scheme designed to speed up building projects and reduce costs.

Building and Construction Minister Chris Penk announced the Self-certification by Plumbers and Drainlayers Bill will cover more residential work and some commercial activity, moving beyond its original focus on basic bathroom installations.

"Trusted tradespeople want to get on with delivering the homes and infrastructure New Zealanders need, but too often they are slowed down by lengthy inspection delays that hold back productivity, pushing up the cost of building," Mr Penk says.

The expanded scheme will now cover most plumbing and drainage work in homes, plus some commercial jobs like installing kitchenettes in small office staff rooms. Rural communities will benefit from coverage of common onsite systems including septic tanks, while both rural and urban areas will see stormwater retention tanks included.

"The Government is progressing the Self-certification by Plumbers and Drainlayers Bill to put responsibility into trusted tradies' hands. It will speed up building by allowing approved plumbers and drainlayers with a proven track record to certify their work is consistent with the building consent," Mr Penk says.

The building sector has responded positively to the proposed scheme, with feedback from tradespeople and businesses helping shape the final version through the Select Committee process.

Only licensed plumbers and drainlayers in good standing with the Plumbers, Gasfitters and Drainlayers Board will be eligible for self-certification endorsement. The Board will maintain oversight of standards, compliance and enforcement to protect public health and safety.

Building Consent Authorities will continue reviewing more complex and higher-risk work, while the new system aims to make building consents simpler and more practical.

"Master Plumbers has advocated for years for plumbers and drainlayers to be able to self-certify, just like electricians and gasfitters, and has welcomed today's changes as a significant milestone for the industry that will enhance efficiency and productivity," Mr Penk says.

The voluntary scheme will apply to buildings up to three storeys, excluding apartments, provided they use standard building designs and don't affect fire-rated or shared walls. Onsite systems must use approved standard designs where available.

"These changes will support strong uptake of the voluntary scheme from the outset, cutting unnecessary delays while maintaining robust protections so homeowners can get essential work done faster and with confidence," Mr Penk says.

The scheme is expected to be operational before Parliament rises for the General Election.