Condensation on your windows is more than just a nuisance. It’s a sign your windows are underperforming—compromising your home’s energy efficiency, comfort, and even structural health. Every day, thousands of homeowners in Australia, from Brisbane to Melbourne, wipe moisture from panes of glass, without realising that poor insulation and ventilation are silently contributing to heat loss, higher energy bills, and even mould.
If your windows fog up every morning, you’re not alone. The good news? You can reduce condensation—without replacing a single pane.
Stop Window Condensation Fast: Quick DIY Fixes (Until You Upgrade)
Still waking up to dripping windows? Here’s how to reduce condensation quickly using the best DIY methods, until you upgrade to double glazed windows.
- Install Thermal Curtains: Products like heavy thermal curtains act as insulation, keeping the interior pane warm and reducing condensation formation. Close curtains overnight to trap warm air and minimise heat transfer.
- Apply Insulating Window Film: A product like transparent insulating film can be added to single glazed window frames to create an additional thermal barrier. Heat-shrinking the film makes it nearly invisible and effective.
- Use a Dehumidifier: Lowering indoor humidity levels with a product like a dehumidifier significantly reduces condensation. Focus on areas like bedrooms, kitchens, and bathrooms.
- Open Awning or Louvre Windows Briefly: Even in winter, releasing moisture-laden air prevents build-up. Consider timed ventilation after cooking or showering.
- Deploy Exhaust Fans Effectively: Kitchen and bathroom fans should vent externally to remove humidity efficiently.
- Run Reverse-Mode Ceiling Fans: Keeping air circulating helps equalise temperatures, avoiding cold spots near windows and doors.
- Weatherproof Window Frames: Seal small leaks using silicone caulking to reduce drafts that cool window surfaces.
These fast methods help, but they don’t address the fundamental reason your windows sweat—poor thermal performance caused by single glazing.
DIY Method | Effectiveness | Installation Time |
Thermal Curtains | Medium | 1 Day |
Insulating Film | High | 1 Day |
Dehumidifier | Very High | Immediate |
Ventilation (Manual/Fan) | Medium | Immediate |
Weatherproofing | Medium | 1 Day |
Why Double Glazing Is the Best Long-Term Fix for Window Condensation
Think double glazing installation won’t make a difference? Think again. Single glazed windows lose heat rapidly, keeping the interior pane cool and encouraging condensation. By contrast, double glazed windows and doors provide a critical thermal break that keeps inner panes warm.
How Double Glazed Glass Prevents Condensation:
- Two panes of glass, separated by an air or argon gas layer, act as insulation.
- Low-emissivity (Low-E) coatings reflect interior heat back inside, maintaining warmth.
- Hermetically sealed units prevent moisture infiltration.
The result? Internal glass stays close to room temperature, eliminating the condensation cycle.
Key Benefits of Double Glazing:
- Reduces window condensation permanently
- Cuts heat loss by up to 70%
- Improves comfort and energy efficiency all year round
- Reduces energy bills by up to 20%
- Blocks external noise by up to 80%
- Protects against window frame rot and mould
Replacing your old single glazed window with energy efficient double glazed windows is the only solution that delivers year-round protection in Australia from condensation while enhancing your home’s value.
At Winsulation, we offer European-inspired double glazed products that not only solve condensation issues but also reduce noise, improve comfort, and enhance energy efficiency—all while complementing your home’s design.
Top 5 Cheap Home Hacks to Keep Windows Clear in the Meantime
If you’re not yet ready for professional glazing solutions, here are the best affordable hacks to manage condensation:
- Absorb Moisture Using Silica Gel: Place products like moisture-absorbing silica packs near condensation-prone windows.
- Wipe Panes of Glass Regularly: While not a solution, consistent wiping helps avoid mould from standing moisture.
- Use Soap Film: A thin layer of soap applied and buffed onto the glass can help repel moisture temporarily.
- Bubble Wrap Insulation: Applying a product like bubble wrap to windows adds an insulating layer, reducing the cooling of the inner pane.
- Ventilation Bricks: Install products like low-cost vent bricks to help airflow and reduce humidity build-up inside your house.
These temporary measures reduce the appearance of condensation but do not resolve the underlying inefficiency of your windows.
Humidity and Ventilation: Supporting Solutions to Help Your Windows Stay Dry
No matter the quality of your glazing, managing indoor humidity is essential. Proper ventilation supports your windows’ ability to remain dry.
How to Manage Humidity for Clear Windows:
- Run products like dehumidifiers during cold seasons.
- Ensure exhaust fans are venting moisture externally.
- Open windows briefly after high-moisture activities like cooking or showering.
- Maintain indoor relative humidity below 60%.
Proper ventilation complements both single glazed and double glazed product installations. However, only double glazing addresses the root thermal cause of condensation.
Exterior Window Condensation: Why It Happens Even With Double Glazing
If you notice condensation on the outside of your double glazed windows, this is actually a sign of high performance. Here’s why:
- High-insulating double glazed units keep interior heat inside. The external pane remains cold, allowing morning dew to form on the outer surface.
- This form of condensation is natural, harmless, and confirms that your glazing is reducing heat loss effectively.
In contrast, interior condensation is a problem signaling heat escaping through underperforming glazing on windows and doors.
When to Call a Professional About Window Condensation
If you experience:
- Persistent interior condensation despite ventilation.
- Visible mould or water damage near windows.
- Condensation between window panes (failed double glazing seals).
…it’s time to contact professional double glazing installers.
At Winsulation, we assess whether full replacement with double glazing windows or secondary glazing retrofits are suitable for your home. Our experts ensure minimal disruption, a clean installation service, and only the best tailored solutions that match your property’s aesthetic.
FAQs: Double Glazing & Other Ways to Stop Window Condensation
Q: Can I stop condensation without replacing my windows?
Yes, through improved ventilation and humidity control. However, only upgrading to double glazed glass solves the thermal root cause permanently.
Q: Does argon gas between window panes help with condensation?
Absolutely. Argon gas provides superior insulation compared to air, keeping interior panes warmer and reducing condensation.
Q: Are there energy efficient solutions for heritage homes?
Yes. Winsulation specialises in secondary glazing that preserves the appearance of older homes in Australia while delivering modern energy efficiency and noise reduction.
Q: Is double glazing worth the cost?
Considering up to 20% savings on energy bills, reduced heating and air conditioning use, and a new, quieter, more comfortable home, double glazing is a smart investment for long-term comfort and property value.
Q: What are the benefits of double glazing beyond condensation prevention?
Besides preventing window condensation, double glazed windows and doors provide noise reduction, improved thermal insulation, lower energy costs, and enhance home aesthetics.
Q: Are sliding options available in double glazed windows?
Yes, many double glazed windows come in sliding designs. Double sliding glazed windows combine space-saving functionality with the insulation benefits of modern glazing technology.
Upgrade Your Home in 3 Simple Steps
- Contact Winsulation for a Free Quote: Our team provides tailored advice, expert service, and transparent pricing.
- Choose Your Solution: Select between full double glazed units or secondary glazing for existing windows.
- Enjoy Year-Round Comfort: Our professional installation service ensures you get long-term results with minimal disruption.
Why Winsulation?
As trusted double glazing installers across Australia, Winsulation offers bespoke solutions designed for local climates. Whether you’re in Brisbane, Melbourne, or beyond, we help you reduce condensation, lower heating and cooling costs, and create a new, quieter, more energy-efficient home. Our double glazed windows and doors are backed by experience, local expertise, expert service, and a commitment to comfort and energy efficiency.
Say Goodbye to Foggy Windows: Invest in Comfort, Efficiency, and a Condensation-Free Home
Window condensation is more than an inconvenience—it’s a sign your home is losing energy and comfort. While temporary DIY solutions can help, only high-performance double glazed glass provides a long-term fix. Investing in new double glazed windows isn’t just about preventing condensation; it’s about transforming your house into a new, quieter, more efficient, and more comfortable home.
Ready to stop wiping your windows and doors every morning? Contact Winsulation today for your free, tailored quote and discover how our expert double glazing solutions can help.