Alitherm 400

Aluminium windows are a stylish, durable and low-maintenance choice for both modern and traditional properties. Their strength allows for slimmer frames and larger areas of glass, creating a clean, contemporary appearance while allowing more natural light into your home.

Designed to stand the test of time, aluminium is highly resistant to rust and corrosion and requires very little maintenance. With a wide choice of colours and finishes available, aluminium windows can be tailored to complement almost any style of property.

At Swadlincote Windows we manufacture and install the Alitherm 400 system from Smart Systems, a high-quality aluminium window system made in Britain. Combining slim sightlines, excellent thermal performance and enhanced security, Alitherm 400 is a versatile option for both residential and light commercial properties.

The system incorporates advanced thermal break technology to help reduce heat loss and improve energy efficiency. It is fully compliant with current Part L Building Regulations and offers PAS 24:2022 approved security for additional peace of mind.

Alitherm 400 is available in a range of styles including fixed, side hung, top hung, tilt and turn and flush casement windows, making it suitable for new builds, renovations and replacement window projects.

• Available as double & triple glazed
• Thermally broken to provide excellent efficiency with U-values as low as 1.2W/m²K
• Frame depth of 70mm with square or flush profile
• PAS 24:2022 Approved - outstanding security performance
• Document L Compliant
• A large selection of colours to choose from with custom RAL options
• Dual colour options available
• Available in fixed, side hung and top hung configurations.
• 10 year warranty