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Suspended timber floorsCertified installersWarmer floors, lower bills

Underfloor Insulation in Melbourne Warm Floors, Done Properly.

Cold timber floors and rising heating bills usually mean an uninsulated subfloor. FreshDuct fits high-performance batts snug between your floor joists β€” sealing the biggest gap most homes never address.

Check Your Subfloor

Three details and we’ll call you back β€” usually the same day.

Free subfloor inspection
Fixed written quote
No call-out fee, no obligation
Among our clients
Why it matters

Up to 15% of a home’s heat can escape through an uninsulated floor

In a suspended timber home, the subfloor is open to the cold air and ground beneath. Without insulation, heat pours downward in winter and floors stay cold underfoot β€” no matter how hard your heating works.

Underfloor batts fitted between the joists create a continuous thermal layer under your living space. The result is warmer floors, more even room temperatures and a heating system that isn’t fighting a constant loss.

FreshDuct installs bulk batts (typically R2.5–R2.7) held firm between the joists so they can’t sag or fall over time β€” with correct clearances kept around any subfloor wiring, pipes and ventilation.

The FreshDuct standard

A rushed subfloor job vs the FreshDuct standard

Underfloor standardCheap installersFreshDuct
Subfloor assessmentSkipped β€” quoted blindCrawl-through check of joist spacing, access, moisture & clearances
Batt fixingPushed in loosely, sags & fallsCut to fit, held firm so it stays put for the life of the floor
R-valueWhatever is cheapestR2.5–R2.7 matched to your joist depth
ClearancesCovered over wiring & ventsCorrect clearances around wiring, pipes & subfloor ventilation
MoistureIgnoredVentilation kept clear so the subfloor stays dry
Proof of workNoneBefore & after photos of the finished job
How it’s done

How we insulate a subfloor

Batts fitted snug between the joists β€” a continuous layer under your whole floor.

Floorboards / living space aboveSubfloor space / groundR2.5 batts fitted snug between joists
Step 1

Subfloor inspection

We assess access, joist spacing, moisture and any wiring or pipes before quoting.

Step 2

Prep & clearances

We plan the layout and mark safe clearances around services and ventilation.

Step 3

Fit the batts

Batts are cut to size and fixed firmly between every joist β€” no gaps, no sag.

Step 4

Check & photograph

We confirm full coverage, clear ventilation and hand over before/after photos.

Before & after

What an insulated subfloor changes

The same floor cavity β€” before and after a FreshDuct underfloor install.

Before
Floorboards / living space aboveSubfloor space / groundUninsulated β€” heat escapes through the floor
After
Floorboards / living space aboveSubfloor space / groundR2.5 batts fitted snug between joists

Empty joists let heat fall straight through the floor. Batts fitted between them keep it where you want it β€” in your rooms.

On the tools

Real FreshDuct insulation work

Certified installers, tidy roof spaces and even R-value coverage β€” recent jobs across Melbourne.

Brand-new R6.0 insulation installed by the FreshDuct team
Brand-new R6.0 batts
FreshDuct installers fitting insulation on site
Our team on site
New insulation with even, gap-free coverage
Even, gap-free coverage
New R6 insulation batts installed in Doncaster East
New R6 batts β€” Doncaster East
Certified R6.0 thermal insulation batts
Certified R6.0 batts
Neatly finished R6 insulation in Glen Waverley
Neat finish β€” Glen Waverley
Precision-fit insulation batts in Kew
Precision fit β€” Kew
R6 thermal batts installed in Keysborough
R6 thermal batts β€” Keysborough
The FreshDuct insulation team
The FreshDuct team
What you get

Why homeowners insulate the subfloor

Warmer floors

No more cold timber underfoot through winter.

Lower heating load

Less heat lost downward means your system works less.

Year-round comfort

A more even temperature between rooms and seasons.

FAQ

Underfloor insulation β€” common questions

Does my home suit underfloor insulation?

If you have a suspended timber floor with a subfloor space (rather than a concrete slab), it almost certainly does. We check access and joist spacing on a free inspection.

What R-value do you use?

Typically R2.5 to R2.7 bulk batts, matched to your joist depth so they sit firm without compressing.

Will the batts fall down over time?

No β€” we cut them to fit and fix them firmly between the joists so they can’t sag or drop, which is the most common failure of a rushed job.

Is it messy or disruptive?

Very little β€” the work happens under the floor, not inside your rooms. Most homes are done in a day.

Do you keep clearances around wiring?

Always. We maintain safe clearances around subfloor wiring, pipes and ventilation as part of every job.

Free assessment

Ready for warmer floors?

Book a free subfloor inspection and fixed written quote.

Check Your Subfloor

No call-out fee, no obligation.

Call NowGet Quote