Upper Hutt, from the power's point of view
A cold, damp, sheltered valley
Wallaceville averages 54.0 ground frosts and 43 days of fog a year, the most fog in the region, and mean 9 am humidity there is 84.2%. Cold, damp houses lean hard on heaters, dryers and extractor fans from May to September.
Suburbs built in the 1970s and 1980s
The city grew fast from the late 1940s, and subdivision in Clouston Park, Maoribank, Tōtara Park and Kingsley Heights carried on into the 1980s. Tōtara Park alone had 1038 dwellings in 2023. Boards from those decades often have no RCDs and no spare room for new circuits.
Wellington Electricity, and outages that drag on
Wellington Electricity runs the lines here, with a 24-hour emergency line on 0800 248 148. Snow in August 2011 cut power to 13,000 people across Lower Hutt, Whitemans Valley and Tawa. A weather outage at Te Marua in October 2025 began in the afternoon and wasn't fixed until 10:20am the next day.
The Wellington Fault runs through town
The fault runs through Tōtara Park, and the council remapped it under Plan Change 47. After a quake, WREMO says to turn the power off at the main switch if you see sparks, broken wires or electrical damage, but only if it's safe to do so.
Owners and renters
At the 2023 Census, 25.39% of Upper Hutt households didn't own their home or hold it in a family trust. Trentham grew 14.1% between 2018 and 2023 and had 4059 dwellings.
Jobs that come up in Upper Hutt, and why
A circuit for the heat pump. A heat pump usually gets its own circuit from the switchboard, and a 1970s board may have no space left. The electrician checks whether the board can take it or needs changing first.
Heated towel rails, underfloor heating and fans. These earn their keep in a foggy valley. In a rental, any extractor fan fitted since 1 July 2019 has to vent outside and meet set sizes, 150 mm for a kitchen and 120 mm for a bathroom, or the matching extraction rate.
RCDs and board upgrades. WorkSafe says new lighting and power point circuits in a home need RCD protection, so adding circuits to an older board often brings RCDs or a new board with it. A higher-capacity switchboard is high-risk work and gets an independent inspection.
Worth asking before a heating circuit goes in
- Is there room on my switchboard, or does it need upgrading first?
- Will the new circuit have RCD protection?
- Which certificates will I get, and when?
- Can you show me your licence ID so I can check it on the EWRB register?
Where we'd start in Upper Hutt
Before winter, we'd have the switchboard looked at first, then plan the heating around what it can carry. Sorting the board once beats squeezing in circuits one at a time. If you rent the place out, we'd check the living room heater and the fans against the healthy homes standards in the same visit.
Want a specialist to sort it?
Tell us the job and your postcode. We match the licence-checked local electrician who does this kind of work, and they call you. No ring-around, and your number goes to them alone.