Secondary glazing can reduce traffic noise by up to 80% and once fitted is hardly visible. It can also reduce your heating consumption dramatically, making you more environmentally friendly.

City Sound is a family-run business established in 1968, serving Central and Greater London’s commercial & residential clients.

Larger projects outside of this area will be considered – please contact us.

We can tackle all window designs, and in particular are often asked to sound proof, or draught/heat insulate, Victorian sash windows which can look beautiful but may be noisy, dirty and draughty. Our unique design mirrors the structure of your existing primary windows so that the secondary glazing is hardly visible once installed.

We welcome projects in listed buildings that require a high standard of workmanship and expertise.

Our clean and efficient service carries a ten-year guarantee on both workmanship and materials.

Recent assignments include:

• Tate Britain
• BP Head Office
• Westminster County Hall
• Honourable Society of Middle Temple
• National health service
• Oxford University
• Queen Mary University of London

Professional secondary glazing specialists you can rely on: all our work is certified to British standards.