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The Review that finds it, the rating that proves it.

The Performance Review tells you what the building can do. NABERS certification proves it, then keeps proving it, year after year.

  1. A printed Performance Plan open on a boardroom table beside utility bills and BMS trend charts.
    Service 01 3-6 weeks · NZ, AU, UK

    Performance Review

    A scoped assessment for one building or a portfolio. Bills, meter data, BMS history, and site context become a Performance Plan: ranked opportunities, confidence levels, evidence gaps, and M&V design.

    See the Review
  2. A six-storey glass office building on a wet Auckland street at blue hour, every floor lit.
    Service 02 Offices now · four more building types from late 2026

    NABERSNZ ratings

    What a NABERSNZ rating is, what it earns, what it costs, and how to get one. Predict your building's rating free on Better Buildings, then Tether takes it to a certified rating and keeps it there: compliant metering, live tracking, and accredited assessment.

    Read the NABERSNZ guide

Better Buildings by Tether

The free first read of any New Zealand commercial building: register, add the address, and see what it could save, what the upgrades would cost, and how soon they pay back.

Products

The platforms and hardware behind the services: Core Tether, Better Buildings by Tether, and MouldWatch by Tether.

Contact

Already know the building and the question. Talk to a Tether specialist and get scope confirmed before any commitment.