Independent builder due diligence
Check a builder before you sign.
Original due-diligence guides, public-record pointers, and private builder-check reports for New Zealand homeowners preparing to sign a building contract.
What we help you check
Start with the records and guidance layers that help you ask better questions before a building decision.
Start your builder due diligence
View the full checklistIdentify who you are contracting with
Check trading names, company records, and whether the person quoting is tied to the entity on the contract.
Open pathwayLook for financial or legal warning signs
Use public-record checks to spot liquidation, insolvency, and related-company context before money changes hands.
Open pathwayRead the pre-sign due-diligence topics
Original guides on contracts, delays, variations, workmanship, communication, budgets, and franchise structure.
Open pathwayRequest a private builder check
Close to signing or found something concerning? Ask for a private check that brings the scattered signals into one place.
Open pathwayPre-sign due-diligence guides
Original guides written by our team for New Zealand homeowners preparing to sign a building contract.
Explore due-diligence topics
Independent research layer
BuilderReview.co.nz is an independent New Zealand due-diligence service. We publish original guidance and provide private builder-check reports for homeowners preparing to sign a building contract.
Learn more about how we work →