Fixed
Superior thermal efficiency in every Visotherm Window and Door.
This system is the perfect solution for new builds, refurbishments, and both commercial and residential projects where optimal performance and exceptional thermal efficiency are required. Its versatile design accommodates large opening sashes, maximising glass size and ventilation. The Visotherm window range not only offers elegant aesthetics but also combines them with low maintenance requirements in a single, impressive package. Featuring thermally broken profiles, these windows provide strength, security, and durability, ensuring outstanding performance.
Key Features
As with all our products, safety, security and longevity is paramount.
- PAS24 accredited
- Various styles available
- Excellent thermal performance
- Colour options
Versatile design options to suit any vision.
The Visotherm range offers not only sophisticated aesthetics but also longevity, low maintenance, and exceptional performance. With thermally broken profiles, these windows deliver enhanced strength, security, and durability, ensuring superior functionality across a variety of applications.
The range also includes a Tilt & Turn window option, providing flexible ventilation and easy cleaning from the inside — ideal for both residential and commercial settings where versatility and performance are key.
Side Hung
Top Hung
Top Hung Fixed
Visotherm Doors
Visotherm doors perfectly complement the window range. Available as single or double doors, with open-out and open-in options, the system gives excellent thermal and weather performance and being PAS24 certified, they provide security as standard.
Visotherm gallery
Colour Options
Durable, beautiful and guaranteed to last. Our extensive and varied range of Aluminium colour finishes provides inspiration for all property types.
- White
- Steel Grey
- Silver Grey
- Platinum Grey
- Pebble Grey
- Painswick Stone
- Olive Green
- Off White
- Obsidian black
- Mars Red
- Grey
- Cotswold Green
- Black
- Bath Stone
- Anthracite Grey
You choose it, we’ll spray it.
At Astraseal, our in-house spraying facility means we can offer our full range of glazing products in any colour, allowing customers to meet the demands of any residential or commercial project.
Technical Information
| Material | Alitherm Polyamide |
| WER Rating | B |
| U Value | 1.2 W/m2k (with double glazed units) |
| Security | PAS24: 2016 |
| Frame Depth | 70mm |
| Window Glass | 24mm / 28mm / 32mm |
| Side-hung / Top-hung / Fixed Max Width x Height | 840 x 1440 mm / 1400 x 2500 mm / 2100 x 2100 mm |
| Door Glass | 24mm / 28mm / 32mm / 36mm / 40mm |
| Single Open In/Out (W x H) | 1200 x 2500mm |
Get in Touch
Whether you’re looking for a quick quote or would like someone from our trade team to contact you
simply complete the below form and we’ll get back to you as soon as possible.
Trade Resources
We have placed all of our resources in one handy location for you to access and download when needed. Here you will find product specifications, install information and guides as well as a variety of brochures and technical documents.
Downloads
