ALITHERM 400 WINDOWS

Long-lasting colour

High Strength

Ease of maintenance

Better functionality

Thermally efficient

Environmentally friendly

Quick Delivery

Reliable lead times and 2-week delivery on stocked products.

Easy Pricing

With our online pricing tool, ‘Cloud’ you can access instant pricing 24/7. Contact our team on how to set up a login and to sign up for a short training session.

Easy Choices

Choose from an extensive range of contemporary or traditional styles, all designed to complement your customers’ homes beautifully

quick Quoting

You can get a quote on our standard REAL products between 24 and 48 hours.

Alitherm-400-PT0002P-KL005 - crop for pr

Alitherm 400 Windows

The new Alitherm 400 system offers outstanding quality, performance and value via a range of stylish aluminium windows. As the first thermally broken aluminium system to feature an extruded glazing gasket, it provides enhanced performance and reduced installation time. Its innovative design incorporates polyamide thermal break technology that significantly reduces thermal transmittance, enhancing the systems overall ‘U’ value. Available in stock colours, Alitherm 400’s new Quick-Glaze Bead is simply tapped in on site with the gasket already in place, eliminating the need for wedge gaskets on internally beaded windows. Making for a faster, simpler and more cost-effective glazing process.

Design Options

Quick Glaze Knock-In Bead

Opening Configurations

Handles

Design Options

Alitherm 400 casement windows are currently available in two options. The popular Alitherm 400i range is an internally beaded system with dummy sashes which can achieve PAS 24 security standards. Alternatively, the externally glazed Alitherm 400x range can be upgraded to PAS 24 security standards by introducing glass security clips.

NEW! Alitherm 400 Flush Sash window, tilt and turn window and Heritage windows and doors are also available!

Quick Glaze Knock-In Bead

Quick Glaze Knock-In Bead is standard on internally glazed windows with 28mm double glazing, ensuring a faster, simpler and more cost-effective glazing process.

Opening Configurations

Either for child safety or simply for ease of reach and style, our windows are available with opening options to suit your customers and their homes.

Handles

Features

Fully compliant with changes to document L of the building regulations

PAS 24 approved for added security
Unlimited colour choice provided by any RAL colour on top of the stock colour selection

Improved thermal and weather performance
Brand new quick glaze bead for a simpler, faster, and cost-effective glazing process

SPECIFICATIONS

Polyester powder organic coating to BS6496

down to A+ rating using suitable double glazed unit

down to 1.1 w/m2k with triple-glazing

Espag locking handles by ERA

70mm

71.5mm

864mm

1400mm

1500mm

28mm double glazed or 40mm triple glazed

REAL Security you can rely on

Independently tested by BSI for security.
Hinges, locks, handles and glazing tested to BS4873/PAS24 for consistency and quality.
All products BSI Kitemark accredited.

Rigorously tested for wind resistance and water ingress; particularly important for windows and doors installed in coastal location properties.
Enhanced security multi-point locking systems.

Each lock features a combination of hooks and anti-lift bolts for greater security.
Windows and doors can be upgraded to include high-security hinge guards for additional security.

Why choose Aluminium

Aluminium is the material of choice for astute Architects and has quickly caught the imaginations of homeowners and commercial business owners, helping them realise their visions for a more contemporary look. Aluminium is also durable, easy to clean, sleek in design and strong. And it represents exceptional lifetime value for money.

What colours are available in aluminium?

REAL stock white, anthracite grey RAL 7016M, black and anthracite grey on white as standard, but other RAL colours are available upon request.

Can the REAL products be triple-glazed?

All of the products REAL offers can be triple glazed, with some products achieving overall U values as low as 1.1 W/m2K.

Are the aluminium products REAL supplies secure?

All of the aluminium products REAL manufactures can be upgraded to the PAS 24 security standards.

Where are the REAL products manufactured?

All the REAL products are manufactured across the two factories in Stonehouse, Great Britain.

Do the windows and doors meet the new Part L regulations?

All of the REAL products meet the new Part L regulations that were introduced in June 2022.