Aluminium vertical sliding sash windows from Alumatherm

The slimmest, most authentic sash window in the UK. With our 36mm super slim meeting rail and choice of 43mm or 90mm deep bottom rail, we’re getting you closer to the authentic look preferred by customers and local planners alike.

Our Alumatherm window has many patented features making this our most advanced window yet.  A retractable parting bead (the first in the UK) replicates the original box sash window look, giving both form and function, and a high gloss acrylic decorative horn is also available. Our external sash profiles all have a putty line detail, replicating the 45 degree chamfer found externally on traditional wood sash windows. Clever profile design and bonded glass to the sash gives incredible strength, and within the meeting rail is a radical box and ‘T’ design resisting deflection or bow.

The Alumatherm design is a culmination of over 55 years experience in aluminium sash windows and continuous research and development.   Alumatherm Windows Ltd is an established family run business located in Market Deeping, near Peterborough in Cambridgeshire.  We chose aluminium above other materials as it is maintenance free, slim, strong and thermally efficient. Our windows are still out there performing every day, even after 55 years, which is a testament to our original design and utility of the product.  We operate from a modern 20,000 ft factory, and in our 55 years of trading are recognised as the oldest specialist manufacturer of vertical sliding double hung box sash windows.

Alumatherm is bespoke to your specification – size, colour or hardware. Our exclusive concealed balance covers mean you simply cannot see the balancing hardware and how they slide. The secondary benefit is the reduction in any air infiltration. Both sashes also have the ability to tilt inwards for cleaning the outside face. Perfect for both Heritage and Conservation areas, also ideal for modern new builds, commercial projects, care home and social housing to name a few.

We look forward to working with you.

For further information:
T: 01778 347147F: 01778 341363
E: sales@clearviewgroup.co.uk
W: www.clearviewgroup.co.uk

 

winactive

Recent Posts

Heritage announces major relocation to support continued growth

Heritage Trade Frames has announced plans to relocate its entire operation to a new purpose-built…

3 weeks ago

New minimalist sash version for Cortizo’s bi-fold system

Cortizo introduces a new 45 mm sash for the bi-fold system: a solution that reduces…

3 weeks ago

German innovation awards for smart sensor technology from Maco

MACO was awarded Gold in the German Innovation Award 2026 in Berlin in the “Excellence…

3 weeks ago

ASSA ABLOY expands test centre to offer ultimate customer experience

ASSA ABLOY is delighted to announce the expansion of its enhanced UK test centre –…

1 month ago

Hardware distributor Safeware launches into trade counter network

Hardware distributor Safeware is being introduced across Quay Plastics, Shepherds, National Plastics and PBS trade…

1 month ago

Experts prove vital as competent person schemes face mounting change

As the glazing sector adapts to shifting consumer behaviour and increasing access to information, the…

1 month ago