Electric Underfloor Heating Systems for New Zealand Homes
Warmup electric underfloor heating turns cold floors into the most efficient heat source in your home. Purpose-built systems for every floor type, room and build stage — backed by a product guarantee and expert New Zealand support.
Same-Day Dispatch
From our New Zealand warehouse
Product Warranty
For both elements and installation
Free Technical Support
Before and after install
Underfloor Heating Designed for the Way New Zealanders Live
Electric under-surface heating is one of the most streamlined, adaptable and space-saving ways to warm a New Zealand floor plan. Wall-mounted heat pumps and ducted units push forced air out from a single point, which often leaves rooms unevenly heated. Warmup’s radiant systems work differently — they spread warmth upward across the entire floor area, holding a steady temperature with no noise, no dry air and no dust being circulated.
Our heating elements are engineered to fit every major subfloor build-up and construction stage found in New Zealand homes. Whether it’s fine wire going down ahead of tiling in an ensuite, protective foil heating fitted beneath a timber living room floor, or heavy-duty cable cast into a fresh concrete slab, Warmup has a system engineered for it. Each solution is built to sit within your floor structure and perform reliably for decades.
This invisible way of heating suits New Zealand’s conditions particularly well. It takes the edge off frosty winter mornings in Otago, Canterbury and the Central Plateau, while being simple to zone or switch off entirely once the warmer months arrive. Paired with a Warmup smart thermostat, each floor zone only heats on your household’s schedule, keeping power use efficient and easy to manage.
Every residential system is designed for New Zealand’s standard 230V mains supply and must be wired in by a registered electrician. From a single ensuite retrofit through to larger architectural projects spanning multiple floor finishes, our local engineering desk offers complimentary floor plan checks, thermal load calculations and end-to-end technical support.
Underfloor Heating Systems
Undertile Heating
Tile and stone conduct heat exceptionally well, which is what makes underfloor heating so effective beneath them — warmth from the heating wire transfers quickly to the surface, right where you feel it. Paired with the correct thermostat and a careful install, it’s an affordable way to remove cold spots and draughty tiled floors. Results improve further when combined with insulation boards, which double as a reliable waterproofing layer. Read more
Undercarpet Heating
These heating mats are built to help reduce moisture and condensation underfoot, making them a sound choice for households managing asthma or allergies. Fitted between the carpet and underlay, they deliver quiet, allergen-friendly warmth and come in a range of sizes to suit almost any room. This style of radiant heating cuts down on circulating dust and draughts, supporting a healthier indoor environment for New Zealand homes. Read more
Inslab Heating
Inslab heating cable is designed to sit within a concrete slab, making it well suited to new builds and additions across New Zealand. It delivers gentle, constant background warmth — ideal for living areas used throughout the day. It’s a cost-effective option for freshly poured foundations and ground slabs, laid over the steel reinforcing mesh before the concrete pour. Read more
Wood & Laminate Floor Heating
Our foil heaters spread heat evenly and include a flexible core wire strong enough to stand up to heavy furniture, when installed correctly. The internal wire core is built to handle everyday pressure without losing structural integrity. Combined with smart floor temperature sensors, the system stays within safe limits set for your specific floor covering, protecting timber and laminate from overheating. Read more
Why New Zealand Homeowners Specify Warmup for Underfloor Heating
Backed by more than 20 years of global engineering, research and technical refinement, Warmup delivers invisible, low-maintenance comfort into New Zealand living spaces.
- Tailored Floor Plan Design: We prepare a distinct layout drawing and power calculation for every project, so room coverage is exact.
- Full Material Compatibility Checks: Our technical desk confirms your subfloor, adhesive and final floor covering.
- All-In-One Brand Support: Heating elements, insulation panels, waterproofing and digital wall controllers, all from one trusted supplier.
- SafetyNet Installation Guarantee: If an element is accidentally damaged on site before the floor finish goes down, we replace it free of charge.
- Local New Zealand Experts: Our technical desk is available by phone or online to support your electrician or builder from layout through to commissioning.
New Zealand's Trusted Underfloor Heating — Designed for Your Home
Warmup has helped homeowners, architectural specifiers and builders across New Zealand fit smart, invisible underfloor heating into every kind of layout. Whether you’re adding loose wire comfort to an ensuite or planning a whole-home slab installation from the ground up, our technical team will help design a system built to perform. Get in touch today for a tailored project design.
Affiliations, Partners & Accredited Installers
Underfloor Heating FAQs
A: In New Zealand, the price depends on the system type, room size, floor finish, and whether it’s part of a new build or a renovation. Electric underfloor heating for a typical bathroom is estimated to start from a few hundred dollars NZD before thermostat and installation costs, though this has not been checked against Warmup NZ’s actual price list. Larger inslab or inscreed systems are priced per square metre and are best quoted against your specific floor plan.
A: Electric underfloor heating stays cost-effective when controlled by a smart WiFi thermostat. These systems use a floor sensor to heat only when needed, and running costs improve further with good insulation underneath. Actual costs depend on your power rates, hours of use and insulation standard, but with sensible controls and decent insulation, expenses sit in line with other electric heating options — with the added benefit of even warmth underfoot.
A: Warmup builds underfloor heating systems to suit the flooring types most common in New Zealand homes, including ceramic and porcelain tile, stone, carpet and engineered timber. Our cables and mats are designed for high conductivity across all major finishes, and our engineering team checks compatibility before your system is designed.
A: Yes. Renovations and floor replacements are a natural opportunity to add electric heating. Laying thin undertile wire within the tile adhesive layer is the most common retrofit approach, adding minimal height to your existing floor build-up. For bigger renovations where a sand-and-cement bed is being replaced or floating floors are coming up, our inscreed and foil systems fit neatly into the renovation timeline.
A: Yes — every Warmup electric system needs a dedicated thermostat to run safely. The wall controller uses a floor sensor to manage temperature, protect the element from overheating, and keep your power draw in check. Running an underfloor element without an approved sensor controller puts the system at risk and pushes running costs up. Warmup offers programmable, smart WiFi, and dual-zone models, including options that can run a heated towel rail alongside your floor heating.
A: This depends on your system and floor build-up. A thin undertile wire can bring stone or ceramic tile to a comfortable temperature in roughly 25 to 45 minutes [this range is adapted from Warmup AU’s published figures and has not been independently verified for NZ-specific products]. Inslab elements take longer to warm initially, due to the mass of concrete involved, but hold and release that background heat for far longer once up to temperature. Setting a smart timer to switch on shortly before you wake removes the wait entirely.
A: Yes. Our systems are approved for wet areas including bathrooms, ensuites and laundries. The double-insulated wire includes protective earth screening and sits safely beneath approved waterproofing before tiling. Systems comply with AS/NZS 3000 electrical wiring standards, and the wall-mounted thermostat must be positioned outside any designated splash zone, in line with New Zealand electrical safety rules.
A: New Zealand’s Healthy Homes Standards require a fixed heater in the main living room that meets a calculated minimum heating capacity. Whether underfloor heating qualifies as an acceptable fixed heater under this specific regulation has not been confirmed — this page should not claim or imply Healthy Homes compliance until that’s verified. Underfloor heating can still add everyday comfort and help reduce cold, damp floor surfaces, which is a genuine benefit worth mentioning without tying it to a legal compliance claim.
