Why Builders and Homeowners Prefer Alitherm 400 for Renovation Projects

Why Builders and Homeowners Prefer Alitherm 400 for Renovation Projects

The Smart Alitherm 400 is a premium window system that combines modern performance, timeless design and exceptional quality, ideal for both renovation and refurbishment projects.

Part of Smart Architectural Aluminium’s product family, a trusted and experienced fabricator of high-performing aluminium systems, and distributed by BDC Aluminium, Alitherm 400 Windows are expertly designed to suit both residential and light commercial applications.

A favourite among builders and installers for its ease of installation and reliability, and loved by homeowners for its sleek aesthetics and low maintenance, the Alitherm 400 Window system covers all bases.

Modern Efficiency to Older Properties

Performance is one of the more important factors to consider when choosing a window system for renovation projects. Often, fabricators can achieve either the desired look or performance, but not both. This is where Alitherm 400 shines.

Built into every one of our aluminium window systems is our advanced polyamide thermal break technology. It significantly reduces heat transfer through the window, helping renovated homes to stay warmer in the winter and cooler in the summer.

Alitherm 400 complies with current Building regulations, namely Part L, with its 1.4 u-value. This demonstrates the impressive thermal performance and energy efficiency of our aluminium systems.

For builders, this means easy compliance with energy standards for refurbishments without the need for any complex adjustments. For homeowners, reduced energy bills and carbon footprint.

alitherm 400 window prices

Strength, Durability & Low Maintenance

The natural strength, rigidity and corrosion-resistance of aluminium make it the ideal material choice for windows in areas or properties in high traffic or exposed to the elements.

Despite being relatively lightweight, the sturdiness of the aluminium makes its installation in older structures easier – a key advantage for renovation work. It also won’t rot, warp or swell like timber or uPVC alternatives, making it a much more durable and lower maintenance option.

Design Flexibility and Aesthetics

The Alitherm 400’s slim 70 mm frame depth creates slender sightlines and maximises the glazing area for more natural light. This makes them perfect for creating bright, open interiors. The clean, minimalist frames integrate seamlessly with traditional sash styles or modern casement looks, for added flexibility in design.

To help you meet design specifications, we offer over 200 RAL colours. We even offer dual-colour options, meaning each side of the windows can be finished in a different colour.

With our Alitherm 400 Windows, homeowners enjoy enhanced curb appeal and a light and airy space within. Builders get to work with an adaptable system that meets the diverse needs of their clients.

alitherm 400 bdc

Designed with Installers in Mind

Alitherm 400 Window systems are engineered for fast, straightforward installation, to help builders and installers save time on site.

The system’s Quick-Glaze bead design features pre-fitted gaskets, simplifying glazing and reducing the need for any adjustments on the day of installation.

What’s not to love? The Alitherm 400 aluminium system from BDC is the perfect solution for both builders and homeowners.

Ready to specify Alitherm 400 for your next refurbishment? Get in touch with our experts today to discuss your next project.

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Winter Views, Summer Ready: The Benefits of Installing Bifold Doors in January
1 day ago News

Winter Views, Summer Ready: The Benefits of Installing Bifold Doors in January

January is the perfect time to get ahead of the year’s projects. It’s strategic, as it allows forward-thinking businesses to put plans in place for important glazing upgrades, like bifold doors. While some may view bifolds purely as seasonal products, they provide benefits all year round.  BDC Aluminium’s Smart Visofold doors are engineered, trade-focused systems perfect for early-year installation. Beating the Spring Rush for External Renovations Spring is the peak season in the development sector. Installer availability is tight, and lead times on purchases are often extended. Demand increases significantly in preparation for summer installations, placing greater pressure on schedules and lead times. Planning installation for January allows for better scheduling with surveyors/install teams, reduces the risk of seasonal delays, and provides a smoother process for larger projects. How Smart Visofold Bifolds Keep the Cold Out The Visofold 1000 Slim maximises glazed areas, thanks to its ultra-slim sightlines. This is achieved while maintaining strength and thermal performance, with no compromise on performance. They’re weather-tested to BS 6375 Part 1;2009, and security tested to PAS 24, demonstrating their reliable performance and their compliance with building regulations. Available in over 200 RAL colours and finishes, with the capability for dual-colour options (different finishes on either side of the door), our Visofold 1000 Slim supports bespoke architectural requirements. The Smart Visofold 6000 features some of the slimmest sightlines on the market at 94mm, delivering expansive glazed openings and larger views. They’re perfect for larger or feature openings, where creating visual impact and strong performance are priorities. Their contemporary profiles make the 6000 suitable for both classic and modern buildings – helping installers satisfy a broad range of specifications. Strong weather sealing and precision engineering of each system make them suitable for installation all year round and perform even in the colder months. For us, a trade account with BDC Aluminium is a partnership – not just a price list. In partnering with BDC, you’ll benefit from priority service during busy periods, and our competitive pricing will protect margins Repeat ordering is streamlined – making it quicker and more straightforward when ordering systems you’ve purchased from us before. We provide end-to-end support, taking care of you from quotation to delivery. We’re proud to offer expert support for our trade partners, and we pride ourselves on our technical expertise. Start Your 2026 Right with BDC Bifold Doors Early planning and installation reduce the risk of seasonal disruption and improve delivery certainty throughout the year. Start your 2026 off right by partnering with BDC

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