Business Details
Secondary Glazing Solutions for Listed Buildings
Extraglaze Secondary Glazing has been at the forefront of providing innovative secondary glazing solutions for listed buildings and conservation areas since its establishment. Our scientifically proven magnetic secondary glazing systems are specifically designed to enhance period windows while preserving their historical integrity. With a nationwide network of trained fitters, we serve homeowners, offices, schools, and heritage sites, offering both supply-and-fit services and DIY solutions.Our expertise in insulating sash and casement windows, along with our commitment to eliminating condensation and reducing noise pollution, has made us a trusted choice for challenging architectural projects. We pride ourselves on delivering discreet, maintenance-free installations that meet the exacting standards of conservation officers and property owners alike.
Services
Secondary glazing
Soundproof windows
Listed building solutions
Condensation control
DIY glazing kits
Magnetic acrylic panels
Heritage window upgrades
Thermal insulation
Conservation area installations
Custom window shapes
Highlights and features
- We specialise in secondary glazing for listed buildings and conservation areas
- Our solutions are scientifically proven for thermal and acoustic performance
- Nationwide network of trained installers available
- DIY kits include fully assembled, made-to-measure panels
- Proven track record with National Trust installations
What people say
Quick professional service
Easy installation process
Noticeable warmth improvement
Almost invisible panels
Effective noise reduction
Services
Secondary Glazing
Our secondary glazing system uses magnetic acrylic panels to improve thermal efficiency in period properties. This solution preserves original windows while reducing heat loss and condensation. Ideal for listed buildings where traditional double glazing isn't permitted, our 3mm panels provide significant energy savings without altering architectural features.
Soundproofing
Magnetic acrylic panels effectively reduce external noise pollution in historic buildings. The system creates an airtight seal that minimises sound transmission while maintaining window functionality. Particularly effective for properties in urban areas, our solution preserves heritage features while improving acoustic comfort without requiring structural modifications.
Listed Building Solutions
Tailored glazing systems for Grade I/II listed properties and conservation areas. Our non-invasive installation method typically doesn't require planning permission. The slimline design maintains original window aesthetics while improving thermal performance, making it ideal for heritage sites needing modern efficiency without compromising historical integrity.
DIY Installation Kits
Pre-assembled, made-to-measure glazing panels for self-installation. Includes comprehensive fitting guides and support materials. Customers receive fully prepared panels that simply attach magnetically to existing windows, with technical assistance available through our helpline and digital support channels for a hassle-free installation experience.
Conservation Area Services
Specialist glazing solutions meeting strict conservation area requirements. Our systems have been approved by multiple conservation officers across the UK. The reversible, non-permanent installation method maintains building character while improving energy efficiency, making it the preferred choice for sensitive architectural environments requiring both preservation and modern performance standards.
Questions
What is secondary glazing?
Secondary glazing involves adding a supplementary glazing unit to existing windows, improving thermal efficiency and noise reduction while preserving original window structures.
Is planning permission required?
Most installations don't require planning permission, especially in conservation areas, but we recommend checking with local authorities before installation.
How does it compare to double glazing?
Our secondary glazing provides similar thermal benefits to double glazing without requiring window replacement, making it ideal for period properties.
Can it reduce noise pollution?
Yes, our magnetic acrylic panels significantly reduce external noise while maintaining window functionality and preserving historical features.
How do I clean the panels?
Panels can be easily removed for cleaning using standard glass cleaning products, with maintenance requirements significantly lower than traditional double glazing.
What window types can be fitted?
We accommodate sash windows, casement windows, arched windows, and complex shapes including out-of-square and bowed configurations.
