Heritage Double Glazing

Eco Slim Double Glazed Units

Eco Slim Double Glazed Units

Here at Glass Replacements Ltd we manufacture our very own Eco Slim double glazed units. Eco Slim are slimline, very thin double glazed unit which can be used for Sash, Casments and Crittall windows. We supply and glaze our Eco Slim double glazed units for many joinery companies, builders and domestic customers throughout the Midlands. Whether you are having a new Sash window made or just modifying your old single glazing, Eco Slim units will help you conserve energy, saving on heating bills and also cutting down on condensation problems.

Window by Paul Shields Joinery

Our Eco Slim units are not only ultra thin, they also have a perimeter sightline of 8mm (3mm warm edge material + 5mm edge sealant) which make them the ideal for the narrow sash window glazing bars. Eco Slim is also discreet in size, therefore helping to maintain the periodic look of a sash window. After the face putty has been applied to the outside of the window, Eco Slim double glazed units become virtually undetectable which makes them perfect for use on Conservation and Listed Buildings.

Technical Information

Eco Slim glazed window



  • Eco Slim can also be glazed in existing single glazed windows


  • Manufactured using 4mm Planitherm Futur 'N' - 4mm Krypton gas filled cavity - 4mm clear float


  • Super spacer warm edge as standard


  • Can be manufactured to a minimum of 11mm overall depth, using a outer 3mm clear float


  • Eco Slim achive a 'U' Value 1.9 with a 4mm cavity & a 'U' Value of 1.5 with a 6mm cavity


  • Also available in toughened glass for low level glazing and doors


  • Also available in obscure glass for bathrooms etc..


  • Shapes - Circles, Rakes, Arches


Glass Replacements Ltd
16 Edgwick Road  



Tel: 024 76581155

Fax: 024 76581165

Email: enquiries@glassreps.co.uk

Opening Hours

Monday - Friday :

8am - 4.30pm


Saturday :

8.30am - 12 Noon


Sunday :