Heritage Slimline Double Glazed Units
Welcome to Glass Replacements Ltd’s Heritage Double Glazing, where tradition meets innovation. Our commitment to preserving the timeless aesthetics of heritage windows led us to craft our exclusive Slimline Double-Glazed Units, so that your older windows can still enjoy the same energy efficiency as newer alternatives.
For full details about our Heritage Double Glazing, please visit our dedicated website below:
Designed with precision, our Heritage Double Glazed Units offer a slimline, very thin profile suitable for Sash, Casements, and Crittall Windows.
This photo demonstrates the thin profile of our Slimline Heritage Units, compared to a traditional double-glazed unit.
As trusted suppliers and glazers, we cater to joinery companies, builders, and domestic customers throughout the Midlands.
Whether you’re creating a new sash window or upgrading existing single glazing, our Slimline units are your energy-efficient solution, conserving energy, reducing heating bills, and mitigating condensation problems.
What sets our Heritage Slimline Units apart is not just their ultra-thin design, but also their 8mm perimeter sightline (3mm warm edge material + 5mm edge sealant). This makes them ideal for narrow sash window glazing bars, ensuring a seamless integration that complements the historic charm of your windows.
The discreet size of our Slimline Units contributes to maintaining the period look of a sash window, blending seamlessly with the structure. Once the face putty is applied to the exterior, these double-glazed units become virtually undetectable—a crucial feature for Conservation and Listed Buildings.
- Heritage Slimline units can also be glazed into existing single-glazed windows
- Manufactured using 4mm Planitherm Futur ‘N’ – 4mm Argon 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
- Slimline Units achieve 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
Choose Glass Replacements Ltd for Heritage Double Glazing that seamlessly combines modern efficiency with timeless aesthetics. Enhance the energy performance of your heritage windows while preserving their historic charm. For enquiries or to discuss how our Heritage Slimline Units can be tailored to your specific project, feel free to contact us.