Have you ever stepped onto cold tiles on a winter morning? It’s not pleasant, but the good news is that there is another option.
Floor Heating makes the floor warm, heats the room, and even dries it out too.
Following is a step-by-step guide on how to install, or prepare for, underfloor heating to be installed. Go on, you deserve it.
Why Choose Underfloor Heating?
Underfloor Heating keeps the floor warm, sure that is a given, but it also does so much more. It dries the floor, which reduces mold and therefore reduces cleaning.
This makes your bathroom a healthier place to be, as I am sure you agree, a reduction of mold and fewer chemicals from clearing products are all great outcomes.
Add to all of that floor Heating also heats the entire space, not just the floor, and the real question becomes, why wouldn’t you install floor heating?
Another but no less significant benefit is the reduction of your carbon footprint. If you are using less energy than other forms of floor heating, you are helping the environment.
Who Can Install It?
Hotwire has accredited installers located right around Australia, and using one is the easiest way to get a professional, customised result. If you’re a competent home handyperson, some states and territories allow part of the installation to be done yourself — but the connection to the thermostat must always be done by a licensed electrical contractor, and in some states the whole installation must be. Check with your local electrical authority to confirm the rules where you live.
Hotwire also publishes installation manuals for every type of underfloor heating and thermostat, plus a YouTube channel showing real installations — both are worth a look before you start.
Planning Checklist Before Tiling Starts
A few extra checks before waterproofing starts save a lot of grief later. Mark clear zones, keeping heating at least 100mm from walls, drains, toilets and floor wastes. Confirm the full floor build-up in order — membrane, insulation board if used, heating element, adhesive, then tile. Decide the thermostat position early and run a dedicated conduit for the floor probe to the centre of a heated lane, well clear of any pipe or window. Get a licensed electrician to confirm load, RCD and circuit capacity before you start. And photograph the cable or mat layout with a tape measure in frame — those photos are what save warranty claims and arguments down the track.
A trained installer will also test resistance and insulation before, during and after the install and record the results, protect the cable during tiling, and hand over photos, test sheets and an as-built plan for your records. It’s worth asking whether your installer has completed formal training — a Hotwire Training Academy graduate, for instance — since it shows up in the small things: neat cable runs, correct spacing, and paperwork that holds up later.
Step 1: Planning and Preparation
Before you start to install floor heating there are some key things you need to do to prepare properly.
- Measure the area: Start by measuring the floor area. Floor Heating systems are generally made for quite a precise area, so approximate measurements will generally not be good enough.
- Prepare the subfloor: Ensure the floor is clean and dry. Give it a good sweep and Vacuum.
Step 2: Installation
Now you’ve completed the pre-installation or preparation side of things, let’s move on to the actual installation.
- Install the heating element: Whether you are using heating mats or a loose wire style, follow the installation instructions closely. The first step is to read the manual. We get so many questions from people who have caused themselves issues by not reading the instructions.
- Connect the alarm. All good Under Floor Heating systems come with an alarm. This monitors the element while the flooring is being installed. If it gets damaged an alarm is sounded.
- Connect the Thermostat.
Connect the Thermostat, again paying close attention to the instructions.
Step 3: Flooring Installation
Once that is all done it is time to lay the flooring.
- Choose compatible flooring: Not all flooring will work with Under Floor Heating so make sure you check with the warranty conditions of your flooring.
- Follow manufacturer’s guidelines: Each flooring system may also have its method of installation over floor heating so be sure to check the details.

Step 4: Enjoy the Warmth and Luxury
That’s it. Congratulations, you are now the proud owner of a great floor heating system and an amazing new space to enjoy living in.
Remember, if you ever need assistance or have any questions, our team at Hotwire Heating is always here to help. Reach out for whatever help you need.
Conclusion
Floor Heating is amazing. We know you’ll love it.
Hopefully, this blog helped you understand the benefits and the process of installation.
Related Reading
- Which Floor Heating is used on The Block?
- Under Tile Heating Pros and Cons: Is It Worth It?
- 10 Answers To Some Of The Most Commonly Asked Questions About Floor Heating
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