Winter Window Watch: How to Spot (and Stop) Heat Loss Before the January Heating Bill Arrives

Winter Window Watch: How to Spot (and Stop) Heat Loss Before the January Heating Bill Arrives

According to the GFF (Glass and Glazing Federation), a staggering 98% of UK homes are losing energy through underperforming windows. Not only is this a damning indictment of the quality of fenestration in the United Kingdom, but it also highlights the need to make an upgrade.

The rising costs of energy, of course, are not helped by statistics like this, especially as January rolls around again and there’s even more need for properties to make use of their central heating.

See, poorly performing windows allow warm air to escape and for cold air to invade, causing uncomfortable interiors and rises in your heating bills that can be tough to stomach.

How to Spot Heat Loss in Your Windows

There are several indications you might spot in your property to assess if your windows aren’t performing up to scratch.

Cold draughts near windows are telling – feeling cold air when the windows are closed, and noticeable draughts around the window frames, sashes or handles can be common in older installations or poorly fitted systems.

Any sort of condensation between the glass panes can indicate failed double glazing, and moisture on interior glass often suggests poor thermal performance. The effects of such are damaging, as they could contribute to mould, damp, and damage to the windows.

If rooms feel noticeably colder when the heating has been switched on, if areas near the windows are significantly colder than the rest of the room, your windows could be to blame.

alitherm aluminium windows

How to Stop Heat Loss in Your Windows

There are steps you can take to stop heat loss from your windows and improve the thermal performance that they offer.

In the short term, you could start by improving the seals of the system and their hardware. Replace worn gaskets and ensure that hinges and locks pull the windows tight to the frames.

To secure the future of your property and ensure it remains high-performing in the long run, we recommend upgrading to modern double or triple glazing. Our advanced glazing significantly reduces heat transfer and works hard to keep the warmth inside and the cold out.

Choosing thermally broken aluminium frames is also a wise choice. Thanks to advancements in aluminium fenestration, it’s no longer cold and poor performing as once typically suggested.

Choose BDC Aluminium Today

If you’re looking for high-performance aluminium windows to upgrade existing fenestration or in preparation for an upcoming job, look no further than BDC Aluminium.

Get in touch with us today and find out how we could help you elevate your future projects.

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Heritage Style, Modern Performance: Trending in 2026
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Heritage Style, Modern Performance: Trending in 2026

Heritage-inspired aluminium glazing continues to trend in 2026, driven by demand from architects and developers seeking to deliver period aesthetics aligned with modern expectations. Period styling is increasingly being specified in both residential and commercial projects. Aluminium enables these visuals with modern thermal and performance standards, providing the perfect solution for trade professionals. BDC Aluminium is a supplier of heritage-inspired aluminium glazing solutions – delivering classic looks and modern performance. Capturing the Heritage Look for Commercial and Design-Led Projects Heritage styling is widely used in hospitality and retail to introduce depth and identity. ‘Steel-look’ glazing is specified to replicate the appearance of traditional metal windows and screens. Glazing bar layouts and grid patterns create authentic heritage character in modern systems. For trade professionals delivering heritage-style schemes, selecting a fabricator capable of combining aesthetic authenticity with manufacturing precision is essential – and this is where BDC Aluminium are perfectly positioned to support industry partners. Our Heritage Products BDC Aluminium supplies a range of heritage-style aluminium glazing systems suitable for a range of projects. Slim steel-look profiles and heritage bar configurations enable consistent classic sightlines across windows, doors and internal applications. Each system is fabricated to order, ensuring accurate dimensions and cohesion across project elevations and internal layouts. Heritage-style powder-coated finishes support consistent design schemes. Designed for reliable installation and long-term durability, BDC heritage systems combine architectural authenticity with modern requirements, making them suitable for both internal and external applications. Choose BDC Aluminium to Stay On Trend Today With heritage aesthetics continuing to shape commercial architecture trends, working with an experienced fabricator is important. BDC Aluminium supports architects, developers, contractors and installers with glazing systems aligned to contemporary specification requirements. If you’re interested in partnering with BDC Aluminium, get in touch – we’d love to hear from you.

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