Finding the best underfloor heating in Whanganui comes down to two quite different jobs: electric cable warming a tiled bathroom or kitchen floor, and boiler fed pipework laid into a slab to heat a whole house. The companies below cover both, from the under tile cable and thermostats Warmfloor designs at its Rakau Road base to the supply and install service Sound Electrical runs from the racecourse. Knowing which system an installer actually fits is the quickest way to narrow the choice when you are pricing underfloor heating in Whanganui.
1Warmfloor Heating Ltd
Warmfloor is a New Zealand owned company based in Whanganui that specialises in under tile electric heating and the products that go with it, including its own free spool heating cable, thermostats and underfloor insulation board. The cable is designed here to suit New Zealand conditions and the country’s three climate zones, and the company supplies through a network of approved installers as well as taking direct enquiries. It suits homeowners tiling a bathroom, kitchen or entryway, and architects and builders specifying floor heating at design stage.
Services
- Under tile electric heating systems for tiles, slate, carpet and timber floors
- Free spool heating cable and pre sized underfloor heating kits
- Wi-Fi and manual floor thermostats, including the TH05, TH04 and TH02
- Aquamox underfloor insulation board to cut heat up time and running costs
- Online quotes and site visits, with cable and run cost calculators for sizing
Highlights
- New Zealand owned and operated, with cable designed for local climate zones
- 25 year product warranty when installed by an approved agent, 15 year for DIY installs
- Cable tested and compliant to Standards NZ 61100 and IEC 60800:2021
- Member of the New Zealand Tile Council
- The Tile Depot Supplier of the Year, 2025
Location & Contact
Name: Warmfloor Heating Ltd
Address: 6/18 Rakau Road, Whanganui
Phone: 0800 492 763
Website: warmfloornz.com
2Sound Electrical
Sound Electrical, previously trading as AME Electrical, has been in the electrical trade since 2000 and works from the Old Tote Building at the Whanganui racecourse on Purnell Street. Underfloor heating is one of its named service lines, with the team supplying and installing Warmfloor systems as a full service alongside heat pumps, solar and home automation work. The firm covers residential, rural and commercial jobs across Whanganui, Manawatu, Marton, Waverley and Raetihi.
Services
- Supply and installation of Warmfloor underfloor heating systems
- Domestic and rural wiring for new builds, renovations and maintenance
- Heat pump supply, installation and maintenance, including Fujitsu and Mitsubishi Electric
- Solar PV design and installation as an accredited SolarKing agent
- LED lighting upgrades for residential, commercial and industrial sites
Highlights
- In the electrical trade since 2000, previously known as AME Electrical
- Full service on underfloor heating, from system supply through to install
- Accredited SolarKing install agent
- Home automation using C-Bus, plus Alarmwatch and Paradox alarm and access control
- Service area takes in Whanganui, Manawatu, Marton, Waverley and Raetihi
Location & Contact
Name: Sound Electrical
Address: Unit 3, Old Tote Building, Whanganui Racecourse, Purnell Street, Whanganui
Phone: 06 347 2472
Website: soundelectrical.co.nz
3MB Plumbing
MB Plumbing is a Bell Street firm of plumbers, gasfitters and drainlayers whose central heating arm covers underfloor heating and radiators, both run off a gas or electric boiler that circulates warm water through a closed loop of pipes. The team installs new systems in new builds and existing homes, retrofits older setups and handles ongoing servicing, with a free consultation and quote at the start. Director Mike Buchanan has more than 40 years in the trade and sets aside time each week for site visits.
Services
- Underfloor heating and whole home central heating installation
- Gas and electric boiler systems
- Radiator heating, on its own or combined with floor pipework
- Central heating repairs, maintenance, upgrades and retrofits
Highlights
- Master Plumbers member, with work backed by the Master Plumbers Guarantee
- Trading in the Whanganui community for 40 years
- SiteWise Green rated for health and safety
- Free consultation and quote on central heating projects
- In house plumbers, gasfitters and drainlayers, so heating ties in with the rest of the plumbing
Location & Contact
Name: MB Plumbing
Address: 62 Bell Street, Whanganui
Phone: 06 345 7111
Website: mbplumbing.co.nz
4Gas and Heating Services Ltd
Gas and Heating Services is a locally owned gasfitting and heating company that has operated in Whanganui since 2008 from Brunswick Road. It fits complete heating systems from design through installation to after care, with underfloor heating listed alongside radiator and warm air systems, and the team is European trained in installing, maintaining and repairing radiator central heating. Past local work includes underfloor heating in a yoga studio as well as commercial kitchens and gas lines in factories, so it suits domestic and commercial jobs alike.
Services
- Underfloor heating installation, domestic and commercial
- Radiator central heating systems, designed, installed and repaired
- Warm air heating systems
- Flame effect gas heaters and gas cooking appliance installation, including AGA range stoves
- LPG, natural gas, solar and gas hot water installation, repairs and maintenance
Highlights
- Operating in Whanganui since 2008, locally owned and run
- Design, installation and after care handled by the same team
- European training in radiator central heating systems
- Works across wood, diesel, LPG and natural gas
- Contactable 24 hours a day, seven days a week
Location & Contact
Name: Gas and Heating Services Ltd
Address: 692 Brunswick Road, Brunswick, Whanganui
Phone: 06 343 9790
Website: gasandheatingservices.co.nz
5A Plus Plumbing
A Plus Plumbing was launched in 2010 by owner Daniel McKechnie and works across Whanganui, Ruapehu and South Taranaki. Its home heating service covers central heating, where warm water circulates through a closed network of pipes that can either feed radiators or be laid in the floor for underfloor heating, and the team will talk that option through against woodburners and gas fires. It suits homeowners weighing up floor heating as part of a wider heating plan rather than as a standalone install.
Services
- Central heating with pipework laid in the floor or feeding radiators
- Woodburner supply and installation, including the Ethos EconAir induction flue range
- Flame effect gas fires and gas heater supply, installation and servicing
- Gasfitting, plumbing and drainage for new builds, renovations and repairs
- Water heating and water filtration, including Rinnai water heaters and Puretec softeners
Highlights
- Master Plumbers member
- Launched in 2010 and owner operated by Daniel McKechnie
- Stocks the Ethos woodfire range, which draws combustion air from outside through the flue
- Service area covers Whanganui, Ruapehu and South Taranaki
Location & Contact
Name: A Plus Plumbing
Address: Whanganui
Phone: 06 348 2099
Website: aplusplumbing.co.nz
Underfloor Heating in Whanganui at a Glance
| Business | Highlight |
|---|---|
| Warmfloor Heating Ltd | New Zealand owned and operated, with cable designed for local climate... |
| Sound Electrical | In the electrical trade since 2000, previously known as AME Electrical |
| MB Plumbing | Master Plumbers member, with work backed by the Master Plumbers Guara... |
| Gas and Heating Services Ltd | Operating in Whanganui since 2008, locally owned and run |
| A Plus Plumbing | Master Plumbers member |
How to Choose the Right Underfloor Heating in Whanganui
- Decide between electric and hydronic first. Electric cable or mat under tiles suits one or two rooms, while boiler fed pipework in a slab is a whole home system and a much bigger install.
- Match the trade to the system. Electric under tile heating is electrical work and hydronic floor loops are plumbing and gasfitting work, so check the installer holds the right registration for the job you want.
- Ask about floor build up and insulation. Insulation board under the cable shortens heat up time and cuts running costs, and the floor covering you choose changes how the system performs.
- Check the warranty and who has to do the install to keep it. Some cable warranties run longer when the work is done by an approved agent rather than a DIY installer.
- Look at the thermostat and controls. A programmable or Wi-Fi thermostat lets you heat the floor on a schedule, which affects your power bill more than the cable itself.
Frequently Asked Questions About Whanganui Underfloor Heating
What does it cost to run underfloor heating?
Running cost depends on the heated floor area, how well the floor and the house are insulated, and how many hours a day the system is on. Electric under tile heating in a bathroom is a small load run for short periods, while a hydronic system heating a whole house is a much bigger one. Suppliers publish cable sizing and run cost calculators for exactly this reason, and an installer quoting the job should be able to work from your floor plan rather than a general estimate.
Is electric under tile heating or hydronic underfloor heating better for my home?
Electric cable or mat is the usual choice for bathrooms, kitchens and entryways, because it sits directly under the tiles and is simple to add while a floor is being redone. Hydronic heating circulates warm water from a boiler through pipes laid in the floor, which makes sense when you are heating a whole house and are already building or pouring a slab. Plenty of homes end up with a combination, with floor pipework in the living areas and radiators elsewhere.
Can underfloor heating be retrofitted into an existing house?
Yes, though it is easier in some situations than others. Electric under tile systems are commonly retrofitted whenever a floor is being re tiled, since the cable goes in as part of the new floor build up. Retrofitting hydronic pipework into an existing slab is a bigger job and usually happens as part of a major renovation, so it is worth getting an installer on site to look at the floor before you plan around it.
Does the installer need to be registered?
Yes. Electric underfloor heating is prescribed electrical work and must be carried out by a registered electrical worker, which you can check on the public register held by the Electrical Workers Registration Board. Hydronic systems involve plumbing and, where gas is the fuel, gasfitting, so the tradesperson should be licensed with the Plumbers, Gasfitters and Drainlayers Board. Both registers are free to search by name.
Which floor coverings work over underfloor heating?
Tile and stone conduct heat best and are the most common choice, which is why these systems are often described as under tile heating. Cable systems are also made to run under carpet, vinyl and timber, but the maximum floor temperature and the underlay matter, and timber in particular has limits set by the flooring manufacturer. Confirm the combination with both the heating supplier and the flooring supplier before the floor goes down.
Do I need a building consent?
The heating itself is usually installed as part of work that already needs consent, such as a new build, a slab or a bathroom renovation involving plumbing and waterproofing. Consents are issued by your local council, and the general guidance on what needs one is published by the Ministry of Business, Innovation and Employment. Ask your installer early, because the answer usually turns on the wider project rather than the heating on its own.
How do I find an installer near my part of Whanganui?
The businesses on this page are spread across the district rather than clustered in one spot. Warmfloor works from Rakau Road, Sound Electrical from the Old Tote Building at the racecourse on Purnell Street, MB Plumbing from Bell Street in the central city and Gas and Heating Services from Brunswick Road out at Brunswick. Coverage also runs well past the city, with installers taking jobs in Marton, Waverley, Raetihi, Ruapehu and South Taranaki, so a rural address is not usually a barrier.
How We Chose the Best Underfloor Heating in Whanganui
Every business in this guide was found by searching for underfloor heating in Whanganui, then checked against what the business publishes itself: its own website, or where it has none, its official social or booking page. Names, addresses and phone numbers come from those pages rather than a directory feed, so what you see here is what the business says about itself. We also check that each one is still trading and is actually based in or genuinely serving Whanganui, rather than a national operator running a local landing page. A business we can’t confirm from its own pages is not listed.