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Aluminium Casement Windows
Aluminium windows have improved in style, performance and security since the early editions back in the 70's.
Our aluminium replacement window range includes top or side hung casement windows. Our choice of aluminium frames, including flat, chamfered and Ovolo profile details will allow you to match existing building features and compliment the character of any property.
Our 'Heritage' slim line range is ideal for steel replacement projects that require slim sight lines and high thermal performance. Aluminium is also ideal when replacing bay windows that require added strength but need to retain a slim and attractive character.
What difference will new aluminium windows make?
Aluminium windows from Thermaframe add comfort to your home, making it warm, secure and quiet. The strength of aluminium means that less frame material is used, so you will see more of the outside world. This has energy saving advantages too, as more sunlight and warmth are allowed into your living space.
Save money & protect the planet
Our aluminium window system incorporates the leading thermal performance techniques available in the industry and are capable of achieving U values as low as 1.6 w/m2K. They are suitable for all types of property and offer increased energy efficiency.
Warm & Secure
- Sealed units up to 28mm can easily be accommodated, perfect for sound insulation.
- Locks and stays compatible for fire escape hinges.
- Shoot bolt locking system.
Attractive & Low Maintenance
- A luxurious appearance in either a modern of traditional theme.
- Choice of handles and shaped vents.
- Choice of hundreds of RAL colours, including a dual-colour option.
- Your new windows can be protected by a tough and resilient powder paint coating.
- Years of excellent service with only a minimum of maintenance.
- Resistant to pollutants and the dirt and grime that can discolour and stain other materials.
Built to last
Aluminium is a structural material and it's strength ensures that it does not warp or twist during its life and resists the forces of nature like weather and fire.
Aluminium is 100% recyclable.
Once your product has finished its long and useful life, it can simply be removed and sold for scrap which can be used towards the cost of new aluminium windows














