A CLEANER, HEALTHIER HOME STARTS WITH BETTER WINDOWS
uPVC and Double-Glazing Stops Mould, Reduces Condensation and Improves Your Home’s Energy Efficiency
Mould, condensation and cold drafts are signs that your home isn’t performing the way it should. Older aluminium or timber windows allow cold air, moisture and temperature fluctuations to creep inside, creating the perfect environment for mould to grow.
WARMER INTERNAL SURFACES = NO CONDENSATION = NO MOULD
Condensation is the number one cause of mould around windows. It forms when warm indoor air hits a cold surface — something that happens constantly with old single-glazed or aluminium windows.
Our uPVC windows and doors eliminate condensation as:
- uPVC has very low thermal conductivity, meaning it doesn’t transfer cold like aluminium does.
- Kommerling profiles use multi-chamber designs that trap air and boost insulation.
- Your double glazing includes Low-E coatings, argon gas and warm-edge spacers, all of which keep the inner pane significantly warmer.
When the glass and frame stay warm, condensation simply can’t form — and without moisture, mould has nothing to feed on.
AIRTIGHT SEALS STOP MOISTURE AND HUMID AIR GETTING IN
Even tiny gaps around old windows can let humid outdoor air seep inside. That moisture settles on cold surfaces and becomes mould.
Our uPVC window and door systems prevent this through:
- Continuous compression gaskets
- Welded corners
- Multi-point locking systems
- Integrated drainage channels
These features create a tight, controlled seal that stops moisture entering your home and stops warm indoor air escaping.
UPVC IS NON-POROUS AND DOESN’T HARBOUR MOULD
Timber absorbs moisture. Aluminium sweats. Both create damp surfaces where mould thrives.
uPVC doesn’t.
- It’s non-porous, so it doesn’t absorb water.
- It doesn’t rot, swell or warp.
- It doesn’t create cold spots that attract condensation.
This makes uPVC one of the most hygienic, mould-resistant window materials available.
IMPROVED ENERGY EFFICIENCY REDUCES HUMIDITY AND COLD SPOTS
Energy efficiency and condensation are directly linked. When your home stays warm and stable in temperature:
- Humidity levels drop
- Surfaces stay dry
- Mould can’t grow
- Heating costs go down
Your double glazing and Kommerling frames work together to create a consistent indoor climate, reducing the load on your heating and cooling systems.
PROTECTS YOUR WALLS, PLASTER AND WINDOW REVEALS LONG-TERM
Because your system prevents moisture from forming or entering the home, it protects the surrounding building materials:
- No more peeling paint
- No more damp sills
- No more black mould spots
- No more rotting timber reveals
This is especially important in Melbourne’s cool, damp winters, where older windows often create cold pockets that attract condensation.
A COMPLETE MOISTURE-CONTROL AND ENERGY-EFFICIENCY SYSTEM
When you combine:
- Kommerling’s multi-chamber uPVC profiles
- High-performance double glazing
- Warm-edge spacers and Low-E coatings
- Your airtight, fully sealed installation method
…you get a window system that:
- Stops condensation
- Prevents mould
- Blocks moisture ingress
- Improves energy efficiency
- Reduces drafts
- Stabilises indoor temperatures
- Protects the building envelope
- Creates a healthier, more comfortable home
This isn’t a temporary fix — it’s a long-term solution designed for Australian conditions and built to last decades.