Hydronic Heating & Cooling Specialists|Servicing NSW · ACT · VIC · QLD|Authorised Maxa supplier · Lic 262528C

Home/Hydronic Underfloor Heating Melbourne

Melbourne, VIC · installed by AHHAC

Hydronic underfloor heating Melbourne — silent, even, whole-home warmth.

In-slab and in-screed hydronic underfloor heating for Melbourne new builds and renovations, driven by a heat pump or gas boiler. Designed and installed from our Laverton North showroom for the city's ~1,500 heating-degree-day winters.

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Authorised supplier & installer

ImmergasSimeThermaSkirt™

Plumbing Lic 262528CABN 85 164 746 4906 showrooms · NSW · ACT · VIC · QLDEst. 1998

Melbourne's long, cold winters (roughly 1,500 heating-degree-days, a −1 °C design temperature) make it the strongest hydronic market in Australia — and hydronic underfloor heating is the gold-standard emitter for the climate. Warm water circulates through PEX-A pipework beneath your floor, radiating gentle, even heat from the ground up with no visible plant, no noise and no air movement. AHHAC designs and installs in-slab and in-screed underfloor systems across Greater Melbourne from our Laverton North showroom.

The efficiency win comes from the low flow temperature. Underfloor runs at just 35–45 °C, which is exactly where a heat pump hydronic heating system is most efficient — so pairing Melbourne underfloor with a Maxa or Immergas heat pump delivers the lowest running cost of any heating system for a well-insulated home. For the full emitter detail, see our hydronic underfloor heating page.

In-slab vs in-screed for Melbourne builds

For new builds, in-slab is the default — PEX-A is laid within the concrete slab before the pour, giving a large thermal mass that holds warmth through Melbourne's frosty mornings. For renovations and second storeys we use in-screed: a 30–35mm self-levelling screed over the existing subfloor, faster to respond and compatible with engineered timber, tile, stone and most carpets. AHHAC runs a heat-loss calculation on every Melbourne job so the system is sized for the actual building, not a rule of thumb.

Why Melbourne homes choose this system

Ideal for Melbourne's ~1,500 HDD winters — steady, whole-home warmth
Lowest running cost when paired with a hydronic heat pump (35–45 °C flow)
In-slab for new builds, in-screed for renovations and second storeys
Per-room thermostatic zoning with MAXA controls
Silent and dust-free — no allergen recirculation
30+ year design life; compatible with stone, tile, timber and carpet
Designed and installed from our Laverton North (VIC) showroom

Common Melbourne questions

Hydronic Underfloor Heating Melbourne — FAQ

How much does hydronic underfloor heating cost in Melbourne?+

For a 200 m² Melbourne home, in-slab underfloor with a heat pump typically runs $35,000–$60,000 installed — a little higher than Sydney because Melbourne's colder winters demand larger plant and more careful insulation. In-screed retrofits are usually $25,000–$45,000. AHHAC provides a fixed-fee quote within 24 hours of a site visit.

Can underfloor heating go into an existing Melbourne home?+

Yes — we use a low-profile in-screed system (12mm pipework in a 30–35mm screed) over your existing subfloor. It suits most Melbourne renovations and works under engineered timber, tile, stone, vinyl and most carpets. Full slab-up isn't required.

What heat source is best for Melbourne underfloor heating?+

A hydronic heat pump — underfloor's low 35–45 °C flow temperature is exactly where heat pumps are most efficient, giving the lowest running cost for Melbourne's long heating season. Gas boilers are a valid alternative where gas is already connected. AHHAC installs both.

Do you install underfloor heating across all of Melbourne?+

Yes — from our Laverton North showroom we cover all Greater Melbourne, the Mornington Peninsula, Bellarine, Geelong, Ballarat and the Yarra Valley. See our Melbourne hydronic heating page for the full service area.

Last updated 20 June 2026 · AHHAC

Reviews

Trusted by homeowners, builders and strata across Australia

★★★★★

Rated 5-star across NSW · ACT · VIC · QLD

★★★★★

"AHHAC delivered our 22-zone underfloor system on time, on budget and to spec. The crew were tidy, the documentation was thorough, and the commissioning was textbook."

David Chen

Custom Builder · Mosman, NSW

★★★★★

"We've worked with AHHAC for 17 years. They've installed and serviced our hot water plant across three commercial buildings — and they pick up the phone on weekends."

James Holloway

Strata Manager · Melbourne CBD

★★★★★

"Three mobs quoted us; AHHAC's design was the only one based on a proper heat-loss calculation. The system runs beautifully — the others would've been oversized and expensive."

Janelle Smith

Homeowner · Robina, QLD