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Alitherm Heritage Windows

Slim Heritage Windows for period properties… or even fabulous new builds!

For when you need modern, secure, thermally efficient windows without sacrificing the heritage and character of your traditional or period property. When you want to add the elegant Edwardian, Georgian or period feel to your fabulous new build.

Key Features

Much lower in cost compared to steel

Optimum thermal efficiency to Grade B

Ultra slim framework ideal for fitting between stone mullions

Replicates the appearance of steel

Approved replacement for listed buildings by many council authorities

Rust proof

Paint finish guarantee – 25 years

10 year Manufacturers Warranty

Fully compliant with latest building regulations

The Alitherm Heritage Windows

The system has been specifically designed as an ultra slim, thermally efficient and secure aluminium replacement for traditional steel windows.

This extremely versatile aluminium window system is an authentic and cost effective glazing solution with the aesthetics of traditional steel windows. Ideally suitable for a wide range of applications including heritage, listed, retro refurbishment and Art Deco projects.

With slim sight lines that create maximum glass areas the stepped frame profiles, glazing bar options and hardware choices offer a classic appearance with excellent thermal and operational performance.

With a range of dedicated system components Alitherm Heritage can be designed to easily accommodate external render and cladding finishes and can be effectively used as an appropriate alternative for contemporary applications that require slim sight lines

Exclusive to this system, Alitherm Heritage windows can be built as a series of individual modules to form a large multi part window coupled with a flush or feature drip bar.

A dedicated heritage door system and now NEW heritage bi-fold doors  with matching frame profiles and exclusive hardware is also available to compliment this window range.

Product Information

Inspired by the aesthetics of traditional steel windows, Alitherm Heritage features signature slim sightlines and attractive contours making it the ideal choice for heritage building conservation areas where building regulations demand a like-for-like replacement.

All main profiles feature polyamide thermal break technology that enhances the thermal performance of the product, allowing Alitherm Heritage windows to achieve a window energy rating ‘A’ grade when fabricated with the correct specification and glazed unit. Profiles have a high quality powder coated paint finish at Smart’s state of the art paint facility in a choice of finishes, including single or dual colour, in a range of standard and non-standard colours.

Design Applications

Windows: fixed windows, side hung & top hung open out casement
Doors: single or double open out balcony doors

Features

  • Window Energy Rating ‘B’ – U Value 1.4 W/m2K (using sealed unit 0.9 W/m2K)
  • 1.4 W/m²K with 0.9 centre pane U value
  • Method of fabrication: corner crimping
  • Glazing – 28mm
  • Gasket glazed
  • High security multi point locking
  • Traditional Art Deco handles available

Technical Specification

General

Product Type Windows and Doors
Material Aluminium Polyamide
Dual Colour
Thermally broken

Performance

Max width (door) 900mm
Max height (door) 2100mm
Max weight (door) 60kg
Thermal suitability ★★★★★
Glazing 28mm

Locking options

Multi-point

Building suitability

Light duty
Love our new heritage windows and door.

Great product and fit for our home. Really great service from Adrian, Hannah, Julian and rest of the team. Thank you!

Andy Myers

Document Downloads

Alitherm Heritage Section identification Guide

Alitherm Heritage Product Data Sheet IMS123AH.201410

Alitherm Heritage Supply only – Guide to installation

Alitherm Products Brochure

COLOURS AND GLAZING

Our aluminium profiles are polyester powder coated by our systems suppliers using the very latest paint application techniques guaranteed for 25 years.

Fully compliant to the latest June 2022 building regulations our standard double glazing is the exceptional light transmitting, energy saving ClimaGuard® A+ low emissivity (Low-E) glass manufactured by Guardian Glass.

 

Why choose Marlin?

Reasons why you should expect 100% satisfaction.

Quality Control

We believe that our quality standards are unrivalled. Our manufacturing processes and activities are monitored with well defined controls and inspection procedures are performed by trained personnel.

Care

We respect you, your property and your project taking care over each detail from order to delivery to your post installation satisfaction.

Project Focus

Your project is important to us. We manufacture to your made to measure requirements so that we get it exactly right. See example case studies of our project work.

Frequently Asked Questions

If you require any support, please don’t hesitate to review our FAQ’s below or drop us a message on our contact form here

How energy efficient are your windows & doors?

All of our products are very thermally efficient; they meet and exceed all current building regulations.

Our aluminium profiles are thermally broken and benefit from high performance double glazing with a centre pane U Value of 1.2 W/m2 as standard. The maximum overall U value of any of our products is 1.6 W/m2, with many of our door and window products offering even lower U Values.

What information must be provided in order to get an accurate quotation?

We will ask you to provide the following information:

  1. Approximate dimensions (width x height)
  2. Basic design/layout
  3. Project location

How long will my quotation take?

We aim to return all quotations within 24 hours however large projects may take longer.

Come and explore…

Aluminium Heritage Windows, Traditional Steel Replacement Windows, Heritage Bifold, Internal Heritage Doors.