Auckland Certified Builder | Construction & Building Specialist

Experts in Quality Construction.


Need a builder to upgrade, extend or alter your home?

Trust Harnett to bring your vision to life; we’ll complete your build on time, within budget and to a high standard. We build a range of new homes, from traditional styles to contemporary designs and everything in between. 



We are NZ Certified Builders, and can help make your dreams a reality!

The team at Harnett are happy to work with your architect to deliver the house you want. Contact us to discuss your plans

Many homeowners renovate their existing home rather than go through the expense and hassle of selling and moving.

"We have been most impressed with James’ expert workmanship, his precision, and meticulousness." - Bill. See more reviews!

Bathroom renovation - Harnett Renovations - Auckland


Trust a NZ Certified Builder

Building with a member of NZCB means you’re in good hands. An NZ Certified Builder must meet strict criteria including having a recognised industry trade qualification, a stable history and a solid reputation. Plus our work is backed by New Zealand’s most comprehensive 10 year residential building guarantee. Let's talk!

Planning a project? Get in touch!