What it costs and what it runs at
Electric mat systems are the usual choice in bathrooms, priced by floor area plus the thermostat and the electrical connection.
Running cost is low because bathrooms are small and the heating runs on a timer rather than constantly.
Fitted alongside the tiling it is efficient. Retrofitted afterwards it means a new floor.
What it actually changes
Warm floor underfoot, which is the point most people care about.
Faster drying floors, so less standing water and less grout staining.
It frees wall space, because you can often run a smaller towel rail rather than a large radiator.
It is comfort heating in most bathrooms, not a full replacement for the radiator on the coldest days, unless the room is well insulated.
When to skip it
Very tight budgets where the money is better spent on the shower valve or the waterproofing.
Rooms with a floor build-up that cannot take the extra height at the door threshold.
Rental properties where the tenant controls the thermostat and the benefit is not yours.
Frequently asked questions
Does it work under any tile?
It works well under porcelain and ceramic, which conduct heat efficiently. Vinyl and some engineered floors have temperature limits, so check the product.
Is it safe in a bathroom?
Yes when installed and certified correctly. Bathroom electrical work is notifiable and we certify the work we carry out.
Can it be added to an existing bathroom?
Only by lifting the floor, which is why it is far cheaper to decide during the refurbishment.