SGL Heritage Aluminium Folding Windows
Shaanxi SGL Doors&Windows Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of SGL Heritage Aluminium Folding Windows in China, also supports customized service. Please feel free to wholesale high quality SGL Heritage Aluminium Folding Windows for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
About Heritage Aluminium Folding Windows
The Best of Both Worlds: Period Charm + Modern Engineering
Heritage aluminium folding windows are specifically designed to replicate the elegant proportions and traditional craftsmanship of original Georgian, Victorian, and Edwardian timber windows, while incorporating modern thermal break technology, multi-point locking, and low-maintenance aluminium construction. The result is a window that looks period-accurate from both inside and out - but outperforms any original timber window in energy efficiency, weather resistance, and longevity.
Designed for Conservation Areas & Listed Buildings
For homeowners in conservation areas or with listed buildings, replacing original windows is often restricted. SGL's heritage folding windows offer a sensitive solution: they faithfully reproduce the slim sightlines, ovolo detailing, and astragal bar patterns of traditional timber sashes, while meeting modern building regulations for thermal performance. Our windows have been specified for period properties across the UK, Europe, and Australia.
Why Choose SGL Heritage Aluminium Over Timber?
Original timber windows require constant maintenance - painting every 3-5 years, replacing rotten sashes, dealing with draughts and condensation. SGL heritage aluminium windows:
- Outlast timber 2:1 - 50+ year service life vs 20-25 years for timber
- Zero maintenance - no sanding, painting, or rot repairs ever needed
- Better U-value - 1.4 W/m²K vs typical timber single-glazed 5.0 W/m²K
- Weather-tight - advanced gasket sealing eliminates draughts
- Fully recyclable - aluminium is infinitely recyclable at end of life
- Authentic appearance - slim bars and traditional profiles indistinguishable from timber at a glance
Heritage Features
🏛️ Authentic Ovolo Detailing
Faithful reproduction of traditional timber profiles - ovolo, astragal, staff, and lamb's tongue mouldings. Period-appropriate appearance from every angle.
📐 Slim Astragal Bars (25mm)
Ultra-slim 25mm astragal bars replicate the elegant glazing patterns of heritage windows. Georgian bar configurations, Victorian vertical emphasis, or Edwardian simplicity.
🎨 Heritage Colour Collection
Carefully curated period colours - Heritage Green, Oxford Blue, Cream, Chartwell Grey, and Black. All RAL colours also available for custom matching.
🔇 38dB Acoustic Performance
Double/triple glazing with acoustic laminate options reduce external noise by up to 38dB - essential for period properties in urban conservation areas near busy roads.
❄️ PA66 Thermal Break (U-1.4)
Integrated polyamide thermal break strip dramatically improves thermal efficiency compared to original single-glazed timber windows - reducing heating costs by up to 40%.
🔒 Multi-Point Heritage Locking
Discreet multi-point locking system integrated into the traditional-looking handle provides modern security without compromising the period aesthetic.
Choose Your Heritage Style
Each style can be configured as a folding window with astragal bars, traditional handle placement, and period-appropriate proportions.
SGL-FW-01
SGL-FW-02
SGL-FW-03
SGL-FW-04
Our Aluminum Window Applications
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FAQ
Q: Q1: What are heritage aluminium windows?
A: Heritage aluminium windows are aluminium windows designed to replicate the traditional appearance of period timber windows - including ovolo detailing, slim astragal bars, and authentic heritage profiles - while delivering modern thermal efficiency, weather resistance, and low maintenance. They are ideal for period properties, conservation areas, and listed buildings.
Q: Q2: Are heritage aluminium windows suitable for conservation areas?
A: Yes. Our heritage aluminium folding windows are designed to meet conservation area requirements. With traditional ovolo profiles, slim astragal bars, and a wide range of heritage RAL colours, they closely replicate the appearance of original timber windows while offering superior energy performance and durability. We recommend checking with your local conservation officer for project-specific approval.
Q: Q3: How do heritage aluminium windows compare to timber?
A: Heritage aluminium offers the same traditional appearance but with major advantages: no rotting, warping, or swelling; no periodic repainting; better U-values (1.4 W/m²K vs 5.0+ for single-glazed timber); 50+ year lifespan vs 20-25 years for timber; and minimal maintenance. They are also fully recyclable.
Q: Q4: What heritage styles are available?
A: We offer four core heritage styles: Georgian (symmetric multi-pane), Victorian (tall proportions with decorative bars), Edwardian (wider panes, cleaner lines), and Tudor (diamond lattice patterns). Custom configurations are available.
Q: Q5: Can heritage windows be made to non-standard sizes for old buildings?
A: Absolutely. Each heritage aluminium window from SGL is made-to-measure to fit your specific aperture. We specialize in non-standard openings typical of period properties built before modern building regulations. Simply submit your opening dimensions, and our team will manufacture windows that fit perfectly with no oversized frames or filler panels.
Q: Q6: Do heritage aluminium windows require planning permission?
A: In many cases, replacement windows in conservation areas or listed buildings require planning permission or listed building consent. Our heritage windows are designed to be sympathetic replacements that are more likely to receive approval. We provide technical specifications to support your application. Please consult your local planning authority for specific requirements.
Project Case Studies
We provide one-stop door and window solutions for individual buyers, contractors, renovation companies, and more.
Our address
No. 2 Group, Fumiao Village, Laojun Town, Hantai District, Hanzhong City, Shaanxi Province, China
Phone Number
+86 13335450021
sgl-factory@sgl-doors-windows.com
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Technical Specifications - Heritage Series
| Product Name | Heritage Aluminium Folding Windows |
| Frame Depth | 60mm / 80mm |
| Profile Thickness | 1.8mm – 2.0mm (6063-T5 alloy) |
| Max Panel Width | 800mm per panel |
| Max Panel Height | 3000mm |
| Max Panels per Track | 8 panels (one track) - up to 12 with dual track |
| Opening Style | Multi-panel folding, inward or outward |
| Astragal Bar Options | 25mm / 32mm / 45mm slim bars |
| Heritage Profiles | Ovolo / Astragal / Staff / Lamb's Tongue |
| Heritage Styles | Georgian / Victorian / Edwardian / Tudor |
| Glass Configuration | 5+20A+5 Double Glazing / 5+12A+5+12A+5 Triple Glazing |
| Glass Type | Low-E / Tempered / Laminated (Optional Heritage Texture) |
| Thermal Transmittance | U-value: 1.4 – 1.8 W/m²K |
| Sound Insulation | ≥ 38dB |
| Water Tightness | Class 7A (EN 12208) |
| Air Permeability | Class 6 (EN 12207) |
| Thermal Break | Polyamide PA66 + 25% Glass Fibre |
| Hardware | HOPO folding mechanism / GU (optional) |
| Surface Finish | Powder coating / Anodized / Wood grain foil |
| Heritage Colours | Heritage Green, Oxford Blue, Cream, Chartwell Grey, Black, White, RAL custom |
| Certifications | CE, NFRC, ISO 9001 |
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