Windows | Aluminium | Smart Alitherm Heritage Windows
Aluminium Heritage Windows
Conservation Approved | Energy-efficient | Replacement for steel windows
Alternative to Steel Windows
Smart Alitherm Heritage Aluminium Windows
Slimline Aluminium Windows for Heritage Projects
The Alitherm Heritage Aluminium Windows offer a modern, energy-efficient solution while maintaining the timeless appeal of traditional steel windows. Designed with slim sightlines and classic aesthetics, these windows are ideal for heritage buildings and conservation areas.
Featuring advanced thermal insulation, multiple glazing options, and secure multi-point locking, Alitherm Heritage windows provide the perfect balance between performance and style.
Available in various configurations, they can be Customised to fit the unique needs of your home, all while ensuring a seamless blend of old-world charm and modern functionality.
Heritage Window Replacements
Smart Alitherm Heritage Windows offer a modern, like-for-like replacement for traditional steel windows
These heritage windows combine the slim sightlines of historic designs with the durability and energy efficiency of aluminium. Perfect for conservation projects, these windows maintain the character of period properties while meeting modern performance standards.
With enhanced thermal insulation, high-security features, and a variety of glazing options, Alitherm Heritage Windows deliver the aesthetic of classic steel frames while offering the benefits of cutting-edge technology. Ideal for restoring heritage homes without sacrificing functionality.
Slimline Heritage Windows
Inspired by the aesthetics of traditional steel windows
Slimline Heritage Windows from the Alitherm range are designed to deliver timeless elegance with modern performance. These windows feature ultra-slim sightlines and sleek profiles, making them ideal for conservation areas or properties with architectural significance.
Despite their classic look, they offer the superior thermal efficiency of aluminium with modern polyamide thermal breaks, ensuring a balance between heritage charm and energy-saving benefits. Available in a variety of styles, they provide an elegant solution for period homes.
Alitherm Heritage Window Specification
Brand
Alitherm
Material
Aluminium Polyamide
Dual Colour
Yes
Thermally Broken
Yes
NBS Available
Yes
WER Rating
B
Document L Compliant
Yes
U Value
1.5W/m²K (using 1.0W/m²K glass unit)
Kitemark
Yes
BS 6375-1:2009
Yes
BS 4873
Yes
Side Hung Max Width
600mm
Side Hung Max Height
1400mm
Top Hung Max Width
1400mm
Top Hung Max Height
1400mm
Fixed Max Width
2100mm
Fixed Max Height
2100mm
Glazing
24-32mm
Typical Sightline
59mm
Frame Depth
47mm
Single Door Max Width
900mm
Single Door Max Height
2100mm
Smart Alitherm Heritage Aluminium Windows
Heritage Range Options
The Alitherm Heritage Range offers a variety of options to suit different project requirements.
You can choose from fixed-pane, top-hung, side-hung, sash, pivot, and tilt-and-turn window formats, ensuring versatility for both traditional and modern applications.
With glazing options ranging from 24mm to 36mm, and an extensive range of RAL colours, including dual-colour finishes, the range can be fully Customised. Additionally, you can select from period-inspired hardware like ‘Monkey Tail’ and ‘Bulb’ handles to complement Victorian or Art Deco styles.
Wide range of designs
Alitherm Heritage windows are available in a number of formats, including fixed-pane, sash, top-hung and side-hung casement, pivot and tilt and turn.
Selection of colours
Our Heritage windows comes in a choice of 3 hard-wearing colour finishes, including white, anthracite and black offering stunning ultra slim, clean and modern look.
Handles and Hardware
Our Alitherm Heritage ranges are all available with a full suite of hardware options, synonymous with Victorian and Art Deco styles – including ‘Monkey Tail’ and ‘Bulb’ options.
Glass Upgrades
We have numerous glass options to suit your needd including 24mm, 28mm, 32mm & 36mm. Modern aluminium windows are thermally-broken using polyamide, an excellent insulator which helps to insulate windows against heat loss.
Supply Only or Fitted
We can deliver your Heritage windows direct to site or direct to your home… all ready to fit. We also offer a comprehensive installation service were we take care of everything.
Made to Measure
Each and every window is made bespoke to your needs. Heritage windows offer a maximum width of 900mm by 2100mm in height. Download our technical guide for details.
Additional Features
47mm Frame Depth
Each Window has a Frame Depth of 47mm
Direct Steel Window Replacement
Alitherm Heritage are designed as a direct replacement for Steel Windows
Polyamide Thermal Break
A Polyamide Thermal Break provides enhanced thermal performance
Polyester Powder Coat
Each window has a marine quality polyester powder coat as standard to ensure durability
Double or Triple Glazed
Available Double or Triple Glazed for ultimate efficiency
Enhanced Locking
Multi point locking and face mounted shoot bolts
Dual Colour Option
Single or dual colour, marine quality polyester powder coat as standard
Glazing Options
Tape or gasket glazed
Gallery
(Click on an image to enlarge)
Ideal for Conservation Areas or Properties with Architectural Significance
Alitherm Heritage windows are designed to meet the specific requirements of conservation areas and historically significant properties. These windows provide a modern solution with slim, thermally-broken aluminium profiles that replicate the aesthetic of traditional steel windows.
Colours
Our Alitherm Heritage windows come in a choice of 3 hard-wearing colour finishes, including white, anthracite and black offering stunning ultra slim, clean and modern look.
Standard Colour Range
Black
RAL 9005
White
RAL 9010
Anthracite Grey
RAL 7016
Handles
Our Aluminium Heritage Windows come with a range of handle options designed for both style and functionality. Choose from sleek modern designs to more traditional finishes, all available in a variety of colours.
These handles are crafted to complement the window’s overall aesthetic, providing a seamless blend of elegance and practicality.
Cranked Handle Range
Cranked Handle
White
Cranked Handle
Hardex Graphite
Cranked Handle
Hardex Gold
Cranked Handle
Hardex Satin
Cranked Handle
Hardex Bronze
Cranked Handle
Hardex Chrome
Cranked Handle
Black
Cranked Handle
Antique Black
Vintage Range
Monkey Tail
Pewter Patina
Monkey Tail
Satin Chrome
Monkey Tail
Antique Bronze
Monkey Tail
Bronze Red Tint
Monkey Tail
Graphite
Pear Drop
White
Pear Drop
Black
Pear Drop
Electro Gold
Pear Drop
Polished Chrome
Classic Handle Range
Pear Drop
Classic Black
Pear Drop
Classic Pewter*
Monkey Tail
Classic Black
Monkey Tail
Classic Pewter*
The Classic Range is hand made so exact match is not guaranteed
Elegance Handle Range
Monkey Tail
Antique Black
Monkey Tail
Hardex Gold
Monkey Tail
Hardex Chrome
Monkey Tail
Hardex Graphite
Tear Drop Handle Range
Tear Drop
Antique Black
Tear Drop
Hardex Chrome
Tear Drop
Hardex Gold
Tear Drop
Hardex Graphite
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