Aluminium Windows in Cornwall
Slim, strong, thermally broken aluminium windows, supplied and installed across Cornwall and the South West by All Glass.
Get a free quoteContemporary windows built to last
We have been supplying and installing high quality aluminium windows throughout Cornwall and the South West for over 10 years. Aluminium is a great choice for contemporary homes, offering strength, durability and resistance to corrosion.
All of our aluminium windows are thermally broken, which greatly increases their thermal resistance and helps combat heat loss and condensation while keeping their structural strength. A slim, elegant profile with a high quality powder-coated finish also maximises the amount of natural light that enters the building.
With a 10 year guarantee on materials and workmanship, your investment is safe as well as your home. If you have any questions or would like to talk through the best options, please give us a call.
Why aluminium
- Slim sightlines, more glass and more light
- Thermally broken for better insulation
- Strong and resistant to corrosion
- Powder-coated in a wide range of colours
- 15 year certificate of guarantee on coatings
- 10 year guarantee on materials and workmanship
Aluminium windows we have fitted



The systems we supply
Alitherm 300
An enhanced system with an extended polyamide thermal break for excellent thermal performance, achieving a Window Energy Rating of A. Profile width 53mm, with ovolo, chamfered or square edge profiles. Single or dual colour marine quality polyester powder coat as standard.
Visoline
A versatile selection of external flat-faced profiles with internal beading, suitable for domestic and commercial applications. Thermally broken, and used for most traditional door and window applications. Outer frame depth 51mm, sash 60mm, with a 22mm glazing rebate.
Styles, finishes and colours
Window styles
Fixed windows, single or double sash, side-hung open-in or open-out, tilt and turn, top-hung, pivot (horizontal or vertical) and tilt and slide windows.
Shapes
Profiles can be bent for round windows, pointed arches and basket arches. Rounded glass beads are available for a softer look.
Powder coating
Electrostatic powder coating in most current RAL colours to APA-Qualicoat guidelines, in single or dual colour, with wood-structure finishes that imitate different woods.
Anodising
Anodised finishes in satin or bronze colours with the E.E.W.A./EURAS-Qualanod quality label.
Thermal break
Two aluminium extrusions separated by glass-fibre reinforced polyamide strips, bonded firmly in the hardening furnace.
Built from quality alloy
Extruded from aluminium alloy AlMgSi 0.5 F22 to DIN 1725, with a certificate of guarantee on all coatings for 15 years.
More from the Smart Systems range
Alitherm 800
The best thermal performance in the Smart casement range, with U-values below 1.5 W/m²K without triple glazing and a 70mm frame depth. Suits replacement and new build projects.
Alitherm Heritage 60
Slim, steel-look windows and doors with U-values as low as 1.1 W/m²K. A good fit for period and conservation area properties.
Tilt and turn
Alitherm tilt and turn windows in contemporary and steel-look styles, with heavy-duty options for larger sashes.
Read more about the Smart Systems range, or see our aluminium bi-fold doors and aluminium sliding doors.
New build and trade
We supply aluminium and uPVC windows and doors to builders and developers across Cornwall, on a supply only or supply and first fix basis. Find out about our new build and trade service.
Thinking about aluminium windows?
Tell us about your project and we will arrange a quote, with no pressure and no salesmen.
Get in touchOr call us on 01326 563 053