Wellington Homes Are Cold, Damp and Draughty — And Kiwis Are Finally Doing Something About It
The Healthy Homes Standards changed the conversation. Radiant floor heating is changing the experience. Here's what's actually happening in Wellington right now.
There's a reason Wellingtonians have a complicated relationship with their homes.
The city is spectacular — harbour views, walkable neighbourhoods, character villas with wooden floorboards and high ceilings that were built when thermal comfort wasn't even a concept architects thought about. And then July arrives. The southerly rolls in off Cook Strait. It's four degrees at 7 AM. And every single morning, the same ritual: layers, heaters, arguments about the heat pump, cold tiles, and a bathroom you'd rather not enter.
Wellington winters are not a surprise. And yet most homes in the region are still heated — if you can call it that — by solutions that were never really designed for the way Wellington weather actually behaves.
That's starting to change. And at Warmup, we're proud to be part of the reason why.
The Problem Is Older Than the Houses
Wellington's housing stock is famously old. Across the inner suburbs — Karori, Kelburn, Island Bay, Brooklyn, Newtown — a large proportion of homes are pre-1970s timber villas.
Beautiful, characterful, and about as thermally efficient as a garden shed.
Cold floors aren't just uncomfortable in these homes. They're a health issue. When floor surfaces stay cold, moisture condenses on them. Condensation leads to dampness. Dampness feeds mould. And mould, as any Wellington renter or homeowner knows, is as much a part of winter here as the wind itself.
The New Zealand government's Healthy Homes Standards — fully enforced across all tenancies by 2025 — were designed to address exactly this. Every rental home in New Zealand must now have a fixed heater capable of maintaining a minimum of 18°C in the main living area. Proper ventilation. Underfloor insulation. Draught stopping.
It's progress. But here's what the standards don't fully capture: the difference between technically warm and genuinely comfortable. A home can pass a Healthy Homes assessment and still have freezing bathroom tiles every morning. A house can have a heat pump in the lounge and a bedroom that never quite loses its winter chill.
That gap — between compliance and real comfort — is exactly where radiant floor heating does its best work.
Why Wellington's Climate Needs a Different Solution
Most heating systems were designed for a generalised cold. Wellington doesn't do generalised cold.
Wellington is the windiest city in the world. Its southerly blasts are legendary, arriving with almost no warning and dropping temperatures by five degrees in the space of an afternoon. Its hills funnel wind into suburbs in ways that make the same street feel like different climate zones at different times of day. Coastal suburbs like Lyall Bay and Seatoun deal with salt-air exposure that degrades outdoor units. Inner-city areas like Te Aro and Mount Victoria deal with dense housing, cold concrete, and poor sun angles.
A standard heat pump placed in a lounge heats the air in the room where it sits. What it doesn't do is warm the floor of a bathroom at the other end of the house. It doesn't stop the cold from rising through the tiles of a kitchen that faces the southerly. It doesn't provide the steady, ambient warmth that a Wellington villa — designed for the 1920s, not the 2020s — desperately needs.
Underfloor heating does.
An electric floor heating system — heating cables or mats installed beneath tiles, timber, or vinyl — heats from the ground up. Warmth radiates evenly across the surface you actually stand on. There are no hot air streams. No cold spots. No part of your home that feels like a different country from the part where the heat pump is working. Just a consistent, low-level warmth that Wellington homes have always needed and rarely had.
"We Didn't Realise What We Were Missing"
One of our Wellington installation partners recently shared a story from a family in Karori — a couple who'd bought a 1950s brick home, done the usual work (heat pump in the lounge, new carpet in the bedrooms), and assumed they'd solved their heating problem.
They hadn't. The bathroom was still ice-cold every morning. The kitchen floor, particularly in the tile zone near the back door where the southerly got in, was unbearable for half the year. And the running costs of leaving the heat pump on all day just to take the edge off were higher than they'd expected.
They called Warmup.
An electric under-tile heating mat went in during a bathroom renovation — the kind of thin, low-profile system that sits directly within the tile adhesive layer and adds almost nothing to floor height. A thermostat controller was programmed to run for ninety minutes before they woke up each morning and another stretch in the evening.
The change, they said, was immediate. Not just physically. Psychologically. Stepping into a warm bathroom on a Wellington winter morning — a bathroom that was actively, reliably warm before you got there, not one you were hoping might have warmed up a little overnight — is a different experience entirely.
"We didn't realise what we were missing," they told the installer. "We thought this was just how Wellington homes were."
That line — I thought this was just how Wellington homes were — is one we hear far too often. It isn't. And it doesn't have to be.
The Thermostat Controller: Small Device, Big Difference
One of the reasons past generations of underfloor heating systems underdelivered was thermostat quality. A basic heating thermostat with no scheduling ability, no floor sensor, and no remote access is a system you're constantly fighting with.
Modern thermostat controllers for radiant floor heating systems are a different thing entirely. A quality smart thermostat learns your schedule, responds to actual floor temperature (not just air temperature), and can be adjusted from your phone when plans change. It lets you pre-warm the bathroom from bed before your alarm goes off. It can be programmed room-by-room, so you're not running heating through the whole house when only the bathroom and kitchen need attention.
For Wellington homeowners who've spent years either over-running heating systems for marginal results, or under-running them and suffering through cold mornings, that level of control is genuinely life-changing. We've heard clients describe a kind of quiet relief — the realisation that they don't have to think about their heating anymore, because it's simply working. Reliably. Silently. Invisibly.
Heated Tiles: The Most Searched, Most Underrated Upgrade in Wellington
If you've been researching home heating improvements in Wellington recently, you'll have noticed that heated tiles and under-tile heating are among the most commonly searched terms for bathroom renovations in the region. And for good reason.
The bathroom is where Wellington's cold is felt most sharply. It's also where a targeted electric underfloor heating system makes its strongest case: the room is small, so the running costs are genuinely low (electric floor heating costs a matter of cents per square metre per hour to operate). The impact is immediate and daily. And unlike a heat pump or wall heater, there are no visible components taking up space — just warm tiles, every morning, exactly when you need them.
For homeowners planning a bathroom renovation in Wellington — particularly those in the older villas of Karori, Kelburn, Brooklyn, Aro Valley, or the Hutt Valley — this is the upgrade that pays back not in energy savings (though those exist) but in quality of daily life. Every.
Single. Morning.
What About Whole-Home Heating?
For new builds and major renovations where full-home radiant floor heating is on the table, hydronic systems — circulating warm water through pipes beneath the floor — are the gold standard in Wellington's climate. Wellington's gas network is unusually well-developed by New Zealand standards, which has historically made hydronic systems connected to gas boilers a popular choice. Air-to-water heat pumps, increasingly efficient and now standard in the most forward-thinking Wellington installations, are the future-proof alternative.
Warmup's range covers both approaches: electric systems for targeted room-by-room comfort, and hydronic-compatible solutions for whole-home installations. The thermostat heating controls work seamlessly across both, giving homeowners the kind of room-byroom precision that a single heat pump simply cannot provide.
Why Warmup, and Why Now
We're not going to pretend there aren't options in the Wellington market. There are.
But when a client calls us in crisis — a thermostat controller that died mid-winter, a system installed by another company three years ago with no local support, a warranty claim that went nowhere — we see the real cost of choosing the wrong system. Not the upfront cost.
The cost of another cold July.
Warmup backs its heating cables and mats with 25-year warranty coverage. Our thermostat controllers carry multi-year guarantees. And when something needs attention, the support is real — not an offshore number that rings out.
For Wellington homeowners, that warranty isn't a nice-to-have. It's the difference between an upgrade you can trust for the next decade and a product you're quietly hoping doesn't let you down.
Wellington's housing deserves better heating. The technology to deliver it exists, it works, and it's more accessible than most people assume.
You don't have to keep starting your mornings on cold floors.Warmup New Zealand supplies electric underfloor heating systems, radiant floor heating, heated tile solutions, and smart thermostat controllers across Wellington, Lower Hutt, Upper Hutt, Porirua, Kāpiti Coast, and beyond. To find out what's right for your home, visit warmup.co.nz.















