Alitherm Heritage is perfect for heritage projects, including listed building renovations and refurbishments.
Alitherm Heritage
Aluminium windows offer an elegant, durable, and cost-effective alternative to traditional steel and Crittall windows. Designed to meet the demands of heritage and listed buildings, they provide a like-for-like replacement that meets planning constraints while enhancing thermal efficiency.
Ideal for both residential and commercial projects, these windows blend classic aesthetics with modern technology. Featuring polyamide thermal break technology and high-performance glazing, they deliver excellent insulation while preserving the timeless appeal of steel-framed windows.
Available in multiple configurations, Alitherm Heritage windows can be installed in various modular formats, making them a versatile choice for restoration and refurbishment projects. With no compromise on style or performance, they are the perfect solution for conservation areas and heritage renovations.
Tilt & Turn
Casement
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“Alitherm Heritage is ideal for sensitive refurbishment and restoration projects, making it a perfect choice for Art Deco, Victorian designs, and even listed buildings.”
The Alitherm Heritage range offers slim, steel-inspired profiles with modern aluminium’s exceptional thermal performance, achieving a ‘B’ Energy Rating.
U Value
1.5 W/m2K
Wind
Class AE, 2400Pa
Air
600Pa
WER Rating
B
Certified
PAS 24: 2016
Certified
BS 6375
| Technical Perfomance | |
| WER Rating | B |
| U Value | 1.5 W/m2K (using sealed unit 1.0 W/m2K) |
| Air | Class 4, 600Pa |
| Water | Class 9A, 600Pa |
| Wind | Class AE, 2400Pa |
| Document L Compliant | |
| Dimensions | |
| Frame Depth | 47mm |
| Glass | 24mm, 28mm, 32mm & 36mm |
| Test Certification | |
| BS 6375 Part 1 | 2009 Resistance to Weather |
| PAS 24:2016 | Enhanced Security Performance |
| Recommended Design Limits | |
| Side Hung Vent Max o/a Width | 700mm |
| Side Hung Vent Min o/a Width | 300mm |
| Side Hung Vent Max o/a Height | 1400mm |
| Maximum Vent Weight | 40kg |
| Top Hung Vent Max o/a Width | 1400mm |
| Top Hung Vent Max o/a Height | 1300mm |
| Top Hung Vent Min o/a Height | 275mm |
| Maximum Vent Weight | 40kg |
We can increase the limits on these manufacturing sizes by upgrading the heritage profile used. Speak to one of our experts today to discuss your requirements in more detail.
Application
- Fixed windows
- Top hung open out casements
- Tilt & turn windows
- Side hung open out casements
Features
- Polyamide thermal break provides enhanced thermal performance
- Designed as a direct replacement for steel
- Finish: Single or dual colour, marine quality polyester powder coat as standard
Colours
Available in any RAL or Sensations colour with dual colour option, allowing you to truly personalise your project.
Glazing Bars
Heritage glazing bars are available in different thicknesses of 42mm, 26mm or 18mm and different designs to perfectly replicate your existing windows and doors or to create the perfect steel look on your new project?
Complete the look
Heritage Doors
Alitherm Heritage
Our versatile Alitherm Heritage doors perfectly complement the window system, offering single, double, and French door options. With slim profiles and sight lines reminiscent of traditional steel products, they are ideal for internal screening or external use. Combining timeless elegance with excellent thermal performance, these doors deliver both style and functionality.
Heritage Single and Double Doors
Design & Installation
– Seamless Solutions from Start to Finish –
We offer a complete end-to-end service, including a full survey, expert professional advice, and tailored design solutions. From supply to installation, we ensure every step is seamless and customized to meet your needs.
Pricing
– Official Suppliers with Competitive Rates –
As an official Smart Architectural Aluminium supplier and fitter, we offer competitive pricing and our expert team ensures you receive exceptional value for your investment, with tailored solutions to meet your specific requirements and budget.
Delivery & Lead times
– Reliable Timelines, Prompt Delivery –
We prioritise efficient delivery and reliable lead times, ensuring your products arrive on schedule. Our team works diligently to provide accurate timelines, keeping you informed every step of the way, so you can plan with confidence.
Ready to transform your space?
Contact us today
For a free consultation and personalised quote.
Frequently Asked Questions
We understand that you have many questions that need answering. If you don’t find the answer here then please get in touch.
Can I customise my door or window design?
Absolutely! We offer fully customisable options, including colours, handles, knockers, letterplates, and glazing choices to match your style.
Do you offer dual-colour options?
Yes! You can choose a different colour for the interior and exterior of your doors and windows.
Do you offer matching side panels and toplights for doors?
Yes, we can provide matching glazed or solid panels to complement your entrance door.
Can I choose different glazing bar designs?
Yes! We offer heritage-style glazing bars and modern designs to suit different aesthetics.
Heritage Window Case Studies
A diverse selection of premium thermally-broken window options.
Gallery
See these products in real projects.
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