Secondary Glazing – The Invisible Upgrade for Warmth, Quiet

 Secondary glazing is the discreet, reversible, and highly effective way to transform cold, noisy, or rattling period windows into warm, peaceful, modern performers – without losing a single original sash, casement, or leaded light.

                         Why Secondary Glazing Is the Smartest Choice for Period & Listed Homes

1. Dramatic Energy Savings -Adds a second sealed unit 100–200 mm inside your existing windows. Typical U-value drops from 5.8 (single glazing) to 1.6–1.9 W/m²K – up to 65 % heat loss reduction. Many homes cut heating bills by £200–£400+ per year.
2. Up to 80 % Noise Reduction -Perfect for homes near roads, railways, airports, or pubs. Acoustic laminated glass options can reduce traffic noise by 45–50 dB – feels like shutting the world out.
3. No Planning Permission Needed -Fully internal and 100 % reversible – ideal for Grade I/II* listed buildings, conservation areas, and Article 4 properties where external changes are forbidden.
4. Stops Draughts & Condensation -Eliminates cold downdraughts and internal condensation on your original glass, protecting precious timber and leadwork from further decay.
5. Discreet & Bespoke
   • Slim 6–10 mm aluminium profiles powder-coated to match your décor
   • Horizontal sliders, vertical sliders, lift-outs, hinged casements, or fixed panels
   • Curved, arched, circular, and shaped units to follow any window
   • Low-profile magnetic or compression seals for virtually invisible finish

                                                             Extra Security & UV Protection

Toughened or laminated inner panes act as an additional intruder barrier and block 99 % of harmful UV rays that fade carpets and furniture.

             Perfect For

• Georgian, Victorian & Edwardian sash windows
• Leaded lights & stained glass
• Crittall & metal casements
• Churches, schools & historic public buildings
• Anyone who wants modern comfort without losing original windows

Enjoy a warmer, quieter, draught-free home tomorrow – while keeping every historic detail exactly as it was built. 

Contact us today for a free secondary glazing survey. Most installations are completed in a single day with no mess and no redecoration needed.