August 3, 2025

A Straightforward Guide to Underfloor Heating for Your New Build or Renovation

Underfloor heating isn’t new, but it’s no longer reserved for high-end homes or luxury builds. More and more Newcastle and Lake Macquarie homeowners are asking: Should we include it in our renovation or new home design? And while it won’t be right for every project, it’s a feature worth understanding before you rule it out.

Here’s a clear, no-nonsense look at how underfloor heating works, where it fits best, and what to consider before you commit.

underfloor heating floorboards

What Is Underfloor Heating, Really?

At its simplest, underfloor heating uses a system of wires (electric) or pipes (hydronic) installed beneath your floor to gently warm a space from the ground up. Unlike traditional heating systems that blast warm air from a vent or unit, underfloor heating creates a consistent, radiant warmth across the entire room.

There’s no fan, no noise, and no cold spots. Just quietly comfortable heat beneath your feet.

installing under floor heating

Where It Makes the Most Sense

In this region, most homeowners opt to install underfloor heating in specific areas, usually bathrooms, ensuites, or powder rooms. These spaces often have tiled floors, which feel cold underfoot even in milder seasons. Heating them from below can turn a chilly morning routine into something genuinely pleasant.

Other common spots:

  • Kitchen and living areas with hard flooring
  • Ground floor bedrooms with polished concrete
  • Mudrooms and laundry spaces that get heavy foot traffic

Rather than heating the whole house, think about where warmth underfoot will genuinely improve daily comfort.

Choosing Between Electric and Hydronic

There are two main types, and each suits different scenarios.

Electric

Best For: Single rooms & renovations.

Pros: Quick to install & great for retrofits.

Considerations: Higher running cost & usually not for whole-house heating.

Hydronic

Best For: New builds & large areas.

Pros: Energy-efficient & suited for large zones.

Considerations: Requires plumbing work & higher upfront cost.

Most local renovations go electric, while hydronic might be worth exploring if you’re building from scratch and planning for whole-home integration.

Is It Worth It?

This is the big question, and the answer depends on your priorities.

Underfloor heating is ideal for you if:

    • You value invisible heating that doesn’t intrude on design
    • You want consistent warmth in rooms with hard flooring
    • You’re after a low-maintenance heating solution

It may not be necessary if:

    • Your renovation is minor and budget’s tight
    • Your floors are timber or carpet (not ideal for radiant heat)
    • You already have effective heating in place and just need a touch of warmth

Think of it as a comfort upgrade, not a must-have.

underfloor heating installation

Quick Note on BASIX

If you’re building or renovating in NSW, BASIX regulations may influence your heating choices. Underfloor heating can fit into your overall energy plan, especially if discussed early with your designer or builder. We’ve unpacked the details in our blog, What is a BASIX and do I need one?, if you’d like to explore it further.

You don’t need to be building a mansion to enjoy warm bathroom tiles in July. Underfloor heating is one of those features that seems minor until you’ve lived with it, and then you wonder how you ever went without.

If you’re planning a renovation or new build in Newcastle or Lake Macquarie and want to explore practical comfort solutions, chat with your builder or bathroom designer early. It’s easier to include upfront than retrofitting later.

Author Bio

 

Mel Roberts

Melodie is the Business Administrator at Nexus Built and has been an integral part of the team for over four years. With a deep understanding of what it takes to run and grow a small business, Mel brings heart, strategy, and a people-first mindset to everything she does. She’s passionate about building trust, not just in the homes Nexus creates, but in the way the business connects with clients, trades, and the wider community.

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