Adelaide’s Local Team for Electric & Under Tile Heating Installation
Cold tiles are one of those things Adelaide homeowners put up with until they renovate — and then they never go back. Bathrooms, ensuites, laundries, and kitchen floors are the most common spaces where under tile heating makes a real difference to daily comfort.
H. Irwin Electrical installs electric under tile heating systems for Adelaide homes — the heating mat and cable systems that sit directly beneath tiles in an adhesive bed and connect to a dedicated circuit with a programmable thermostat.
For new builds and larger renovations where a screed layer is being laid, we also install in-screed cable systems that deliver consistent, low-energy warmth across bigger areas.
Both systems require a licensed electrician for home rewiring, circuit installation, RCD protection, thermostat wiring, and pre-tile insulation resistance testing. That’s our part of the job, and we do it properly.
We work alongside tilers, builders, and bathroom renovators across Adelaide to make sure the electrical side is coordinated, compliant, and ready before the tiles go down. A switchboard upgrade may be required depending on your home’s existing capacity, and we assess this as part of every quote. Contact us to arrange a free onsite assessment.
Common Floor Heating Scenarios We Handle
Under tile heating in Adelaide comes up most often in the same situations. Here’s how we approach each one.
Bathroom and Ensuite Heating
Bathrooms and ensuites are the most popular rooms for under tile heating in Adelaide — and for good reason.
Stepping onto a warm floor after a shower on a winter morning is the kind of upgrade that gets used every single day.
We install under tile heating mats sized precisely for the open floor area, wire a dedicated circuit with RCD protection, and position the thermostat and floor sensor to give accurate temperature control without intrusive placement.
Kitchen and Living Area Heating
Kitchens and open living areas with tiled floors are increasingly common in Adelaide renovations, and under tile heating works well in these spaces when the right system is selected.
Larger areas require careful load calculation to ensure the circuit is sized correctly and the heat distribution is even.
We design the layout around permanent fixtures like islands and cabinetry so no cable runs under areas where heat could build up without escape.
New Builds and Renovation Projects
New builds and major bathroom renovations are the best opportunity to install in-screed heating — cable embedded in the mortar bed before tiles go down.
This method places the heating element closer to the tile surface, which means faster warm-up times and better energy efficiency.
We coordinate directly with your builder or tiler to ensure the electrical rough-in is complete before the screed is poured, and we return for final connection and testing once the tiles are set.
Repair and Replacement of Existing Systems
Older under tile systems can develop faults — a failed thermostat, a damaged cable from drilling, or a zone that stops heating.
Our team carries out fault finding on existing floor heating systems to identify whether a repair or a full replacement is the right call.
If only the thermostat or sensor has failed, a replacement is usually straightforward. If the heating cable itself is damaged, a full system replacement is almost always more cost-effective than attempting a repair under laid tiles.
Types of Under Floor Heating Systems We Install
Choosing the right floor heating system can make all the difference in comfort, energy efficiency, and installation cost.
At H Irwin Electrical, we install several types of under floor heating systems across Adelaide, tailored to different home layouts and floor finishes.
Electric Floor Heating
Electric floor heating uses heating cables or mats installed beneath the floor surface to deliver even radiant heat.
It is quick to install, easy to control, and ideal for renovations or individual rooms such as bathrooms and kitchens.
The system provides comfortable warmth with minimal maintenance and fast heat response.
Under Tile Heating
Under tile heating is designed for tiled floors in areas such as bathrooms and laundries.
It spreads heat evenly across the floor, creating a warm and comfortable surface underfoot.
The system is thin and discreet, allowing installation without raising the floor height, and delivers efficient heating performance in wet areas.
Hydronic Under Floor Heating
Hydronic under floor heating uses warm water circulated through pipes embedded in the floor slab.
It is suitable for new builds or large homes that need consistent, low-energy heating throughout.
The system connects to a boiler or heat pump and provides long-lasting, quiet, and energy-efficient warmth.
Radiant Floor Heating with Panels or Film
Radiant floor heating with panels or film uses thin electric elements installed directly beneath the flooring.
It is ideal for laminate, vinyl, or timber surfaces where minimal floor build-up is required.
This system heats up quickly, offering clean and efficient warmth for everyday living.
What to Expect During Your Floor Heating Installation
Getting under tile heating right in Adelaide requires more than just laying a heating mat.
The electrical work has to be done in the right sequence, coordinated with the tiling schedule, and tested before anything is covered up. Here’s how our team approaches every installation.
Step 1: Onsite Assessment and System Selection
We visit the site to assess the space, measure the open floor area (excluding areas under vanities, cabinets, and fixed furniture), and evaluate your existing switchboard capacity.
At this stage we confirm whether your board can support a new dedicated circuit or whether a switchboard upgrade is needed.
We recommend the right system — mat or loose cable — based on the room shape, floor type, and your heating preferences, and we provide a clear quote before anything is booked in.
Step 2: Circuit Preparation and Rough-In
Before the tiler begins, we install the dedicated circuit from your switchboard to the bathroom or renovation area, run conduit for the thermostat wiring, and prepare the floor sensor location.
The cold tail from the heating mat is routed and protected so it won’t be damaged when tiles are laid.
This stage needs to happen before waterproofing is complete in wet areas, so timing with your other trades is important — we’re used to working around renovation schedules and communicate clearly with everyone on site.
Step 3: Heating Mat Installation and Pre-Tile Testing
Once the subfloor is prepared by the tiler, we lay the heating mat or cable to the agreed layout, working around the room’s fixtures and expansion joints.
Before a single tile goes down, we carry out an insulation resistance test on the heating cable.
This is a non-negotiable step — it confirms the cable is undamaged and performing correctly while it can still be accessed.
If a fault is found at this stage, it can be fixed. After tiles are laid, it can’t.
Step 4: Thermostat Installation, Final Connection, and Handover
Once the tiles are set, we complete the thermostat installation and final electrical connection.
The system is powered up, tested for correct operation, and the thermostat is programmed with your preferred settings.
We walk you through how to use the controls, set schedules, and adjust the floor sensor response.
You receive full compliance documentation and an as-installed record for your files.
How We Install Under Floor Heating Systems
For Adelaide homeowners planning a renovation or new build, here’s the short version.
Assess and Quote
We inspect the space, measure the heated area, and check your switchboard. You get a clear quote with no surprises.
Prepare the Circuit
We install the dedicated circuit and route conduit before the tiler starts. Timing with other trades is handled by us.
Lay, Test, and Tile
The heating mat is installed and tested before tiles go down. Any fault found at this stage is fixed — not covered over.
Connect, Commission, and Hand Over
We complete the final connection, program the thermostat, and hand over full documentation.
Why Choose H. Irwin Electrical for Under Tile Heating in Adelaide
Local Experience in Adelaide Homes
Our team has been working in Adelaide bathrooms, renovations, and new builds for over 15 years.
We understand how local homes are wired, what Adelaide winters demand from a heating system, and how to coordinate with the other trades on a renovation site without creating delays.
NECA-Accredited, Fully Licensed
H. Irwin Electrical holds a current electrical contractor’s licence for South Australia and is NECA-accredited.
Every floor heating installation includes a dedicated circuit with RCD protection, pre-tile insulation resistance testing, and full compliance documentation — all required under AS/NZS 3000.
Award-Winning Workmanship
Hamish Irwin was awarded ATEC Apprentice of the Year in 2014.
That standard carries through to every installation — clean cable routing, precise thermostat placement, tidy conduit work, and a worksite left in good order so your tiler can get straight back to work.
Premium Components Only
We use Clipsal and Voltex components throughout. No substitutions, no low-grade parts.
For a system that’s going to be installed under tiles for decades, the quality of the components matters.
