Trade aluminium windows
Smart Alitherm 400 windows, manufactured locally for your customers’ projects.
HG Trade supplies Smart Alitherm 400 aluminium windows to builders, installers, window companies and developers across Suffolk and Essex. With standard, flush and heritage-style options, the range gives you a choice of looks for new builds and renovations. Speak to our local team about the style, glazing and finish that suit your project.
If you’d like to find out more about our HG Trade products, please call our trade team on 01473 822415
Smart Alitherm 400 aluminium windows
Alitherm 400 is a versatile aluminium window system for residential and light commercial projects. Its 70mm frame combines a clean appearance with strong thermal and weather performance, making it suitable for both new builds and refurbishment work.
The range includes standard, flush and heritage-style windows. It can take double or triple glazing, giving you options to suit the look and performance needs of your customer’s project.
HG Trade manufactures these windows locally. Our team can help you compare styles, glazing and finishes before you prepare your quote.
Aluminium windows for different projects
Alitherm 400 gives you a choice of window styles within one system. Whether your customer wants a simple contemporary frame or a more traditional appearance, our team can help you find a suitable option.
Standard and flush windows
Choose standard frames for a clean, versatile look, or ask about flush windows where the sash and outer frame sit more closely in line.
Heritage-style windows
The heritage option offers a more traditional appearance for renovations and projects where the frame design needs careful thought.
Glazing and colour choices
Alitherm 400 can take double or triple glazing and is available in a wide choice of Smart aluminium finishes. Obscure and satin glass options can also provide privacy where needed.
Performance for residential and light commercial work
Alitherm 400 combines thermal performance, security and weather resistance in a window system suited to new builds and replacement projects.
Thermal efficiency
Alitherm 400 windows typically achieve a U-value of 1.4 W/m²K and a Window Energy Rating of A. The performance of a finished window depends on its size, glazing and specification, which we can check for your project.
Security and weather protection
The window system is PAS 24:2022 approved and offers tested resistance to air leakage, water and wind. Ask our trade team for the relevant performance details when preparing your specification.
Aluminium windows from a local trade supplier
From a single replacement window to a larger schedule, HG Trade can help you choose the Alitherm 400 style that suits the job. Speak to our team about opening types, glazing, colours and the details needed for a quote.
We manufacture locally and hold popular systems and colours in stock, with a typical turnaround of 4–6 weeks depending on the specification. We’ll confirm the expected date when we quote and can arrange delivery to the agreed site.
Need aluminium windows for your next project?
Tell us what you’re working on, whether it’s a replacement window, a full house or a larger development. We can help you compare Alitherm 400 styles, glazing and finishes, then prepare a trade quote for the specification you need.
Alitherm 400 at a glance
- Frame depth: 70mm
- Styles: Standard, flush and heritage
- Glazing: Double or triple glazing
- Opening options: Side-hung, top-hung and fixed windows
- Security: PAS 24:2022 approved
- Window Energy Rating: A
Available sizes and performance depend on the window type and full specification. Share your proposed window schedule with us and we’ll help you check the options for your project.
Need window specifications or colour options?
Ask our trade team for Alitherm 400 product literature, window specifications and details of the available finishes. We can help you find the information you need to prepare a quote or discuss the options with your customer.
Trade aluminium window FAQs
What Alitherm 400 window styles can I order?
The range includes standard, flush and heritage-style windows. Tell us about the property and the look your customer wants, and we can help you compare the options.
Can I order double or triple glazing?
Yes. Alitherm 400 can take double or triple glazing. We can help you check a suitable specification for the window sizes and performance needed.
Are privacy glass options available?
Yes. Ask us about obscure and satin glass where privacy matters, such as bathrooms or windows overlooked by neighbouring properties.
Can you quote for several windows on one project?
Yes. We work with installers, builders and developers on projects of different sizes. Send us an outline of what you need and our trade team will discuss the details for a quote.
Ask about trade aluminium windows
Need a price or help choosing an Alitherm 400 window style? Send us a brief message and the HG Trade team will get back to you. You can also call 01473 822415.