Slim Low Sight Line Units

Treforest Glass are a leading supplier of Heritage Slim Low Sight Line Units, which come with a 10 Year Guarantee.  

Heritage Slim Low Sight Line Units

Our units are suitable for listed buildings, restoration projects, and the discerning Customer who wants a thinner timber frame.

We supply country wide using our own vehicles and couriers. 

At Treforest Glass, we are extremely proud of the reputation we have established by supplying the industry with quality products and great service. 

Our units come with the latest ‘cutting edge’ products which can achieve outstanding thermal and acoustic ratings, whilst still looking 200 years old!

We can produce Slim Low Sight Line Units containing many specialist glass types including: 

  • 3mm Cylinder Glass - 5.8mm Laminated Cylinder Glass (Suitable for Grade I listed buildings). ‘Full of old world charm’. 

  • The whole Goethe range (Suitable for Grade II Listed Buildings). 

  • Acoustic Slim Low Sight Line Units using 6.4 Stadip Silence.  This glass type will halve the sound/noise compared to single glazing or standard double glazing. 

  • Slim Low Sight Line Units incorporating Anti-Fade glass, protecting your soft furnishings. Self clean or ‘Easy Clean’ units that stop your glass becoming dull and lifeless over time allowing it to keep its ‘sparkle’. 

  • Our 14mm unit can achieve a 1.2W/m2K using ‘Optitherm Advantage’ specialist glass. 

  • Our 16mm unit conforms to building regulations when incorporating standard softcoat and a krypton filled cavity in a 90mm timber frame (in accordance with the Thermal Rating Register).

Float GlassGoethe Glass Cylinder Glass

   Float Glass 1950's onwards           Goethe Glass 1860-1920                 Cylinder Glass 1700-1860

We offer help, advice and give our Customers options. If you have a wish list of what you expect from your glazing we can help you make it a reality.


Slim Installation Guide 2015         Slim Information 2015         10 Year Guarantee         Heritage Super Spacer
Slim Installation Guide          Slim Information              10 Year Guarantee         Heritage Super Spacer

Dry Seal Product Sheet         Silfix U9 Data Sheet         GGF Guidelines         Torcello Restoration Unit
Dry Seal Data Sheet           Silfix U9 Data Sheet             GGF Guidelines           Torcello Restoration Unit

For more information, please contact:

Debbie Wise, Sales Director - 07943655799 or 01443 841313 Ext. 205

                             Terry Potter, General Manager - 01443 841313 Ext. 203