When I joined Northern Trade Windows, I knew I was stepping into a business with an incredibly strong foundation, over 30 years of experience in the industry, still family-run, and still proudly committed to offering genuine, dependable, even‘ old fashioned’ service.

But that doesn’ t mean we’ re scared of change or taking on new products. In fact, we recently switched our aluminium supplier to Alunet Systems. And the ALUNA Bifold has since become one of, if not my favourite lines – here’ s why …

The ALUNA Bifold is premium, versatile, intelligently engineered, and genuinely installer-friendly. In my view, it’ s the perfect product to be recommending to aluminium installers working in the home improvement sector right now.

A bifold built on success

Many in the trade will already be familiar with the BF73 bifold system – a well-regarded, trusted product with a solid reputation. The ALUNA Bifold builds directly on that system’ s strengths, taking everything that made BF73 popular and refining it with enhanced aesthetics, better thermal performance, easier installation, and greater flexibility.

At its core, ALUNA offers a slimmer, more modern profile, with market-leading sightlines of just 107mm. This design choice maximises the glass area and lets in significantly more natural light, making it a strong selling

point for homeowners who want to bring the outdoors in. Yet, despite its elegant appearance, the system doesn’ t compromise on strength or performance.

A thoroughly modern bifold

What makes ALUNA stand out is how intelligently it’ s been engineered for ease of fabrication and fitting. I’ ve spent time getting to know the system, and I can confidently say it’ s one of the most installer-friendly bifold systems available today.

For starters, the system is incredibly versatile. Whether the job calls for a single door, French doors, a full bifolding door or even shaped or fixed frames, the ALUNA Bifold system can do it all – and do it to a premium standard. That includes options for astragal bars, integral blinds, sidelight configurations, and even use as an entrance door with panel inserts.

There’ s also an impressive range of smart installation features:

• A newly introduced sash extension reduces the number of gaskets required, streamlining fabrication and enhancing smooth operation.

• The‘ Click & Forget’ clip-in bead – fully PAS24:2022 certified – saves time and offers peace of mind on site.

• The new door restrictor is another clever touch: quick to install, easy to operate, and removable when full opening is required.

• In addition, all hardware used is engineering-grade, ensuring smooth, durable operation. The system has been designed to feel premium, and it absolutely delivers on that front.

An impressive list of credentials

The ALUNA Bifold boasts excellent thermal efficiency, achieving U-values as low as 1.1 W / m ² K – making it ideal for homeowners looking to reduce energy bills or meet stringent building standards. Security is fully up to scratch too,

with PAS24:2022 certification, giving you a clear compliance edge when tendering for jobs or working in regulated settings.

The aluminium itself is marine-grade, making it suitable for even the harshest environments. Aluminium as a material is known for its strength and resistance to corrosion – unlike timber, it won’ t rot, flake or peel, and it doesn’ t need regular repainting or staining. That’ s a major selling point for customers who want a low-maintenance, long-lasting solution.

A perfect package of support

At Northern Trade Windows, we’ ve always believed that offering premium products isn’ t enough – the service and support behind them has to be just as strong. That’ s what we mean when we talk about offering the best of both worlds: ultra-modern systems like ALUNA, backed by decades of experience, old-school customer service, and a genuine understanding of what trade installers need to succeed.

When you partner with us, you’ re not just getting a great product – you’ re getting a dedicated team who will support you from your first enquiry right through to delivery and aftercare. We pick up the phone, we know the systems inside out, and we’ re here to make sure every install runs smoothly.

‘ Let There Be Light’ In my view, ALUNA is exactly what the market needs right now – and exactly the kind of product independent installers should be offering to stay ahead. It combines style, strength, flexibility, and ease of installation in one top-tier package. And with a reliable trade supplier behind it, it becomes even more compelling.

If you haven’ t already taken a look at what ALUNA can do, now’ s the time. I’ d be happy to talk you through the system, show you the details, and help you bring something truly special to your next aluminium installation.

www. northerntradewindows. co. uk