Noise Reduction WindowsUp to 80% Quieter with Acoustic Glazing
If traffic, trains or aircraft are stealing your peace, acoustic secondary glazing is the most effective fix. A wide air gap and laminate glass cut perceived noise by up to 80% — without replacing your existing windows.
The Right Specification for Your Noise
Different noise sources need different solutions. Low-frequency rumble from trains behaves very differently to the broadband roar of aircraft, so we match the air gap and glass to your specific problem. Here is how we approach the most common sources:
| Noise source | Recommended solution |
|---|---|
| Road & traffic noise | 100–150mm air gap with 6.4mm acoustic laminate — ideal for busy streets and A-roads. |
| Railway & Underground | Wide gap plus 10.8mm laminate to absorb low-frequency rumble and vibration. |
| Aircraft & flight paths | Maximum gap with heavy laminate glass for the broadband roar of overflights. |
| Pubs, clubs & people | Sealed units that block voices and music late into the night. |
How Acoustic Secondary Glazing Works
- The air gap does the heavy lifting. A 100–200mm gap decouples the panes so vibration can't pass straight through — far wider than double glazing's 16–20mm.
- Acoustic laminate glass. A PVB interlayer absorbs sound energy — read why 10.8mm acoustic laminate is the gold standard.
- Airtight seals. Noise leaks through gaps, so high-performance compression seals are essential. See our complete soundproofing guide.
- Specific noise problems. We have detailed guidance on Heathrow flight-path noise and Tube and Underground vibration.
Compare options in our secondary glazing vs double glazing guide, see costs, or return to our complete guide to secondary glazing. We install noise-reducing secondary glazing across London and every borough we serve.
Noise Reduction Windows: FAQs
Common questions about acoustic secondary glazing and how much noise it removes.
What Our Clients Say
Rated 4.9 out of 5 across 127 reviews from London homeowners.
"Exceptional service from start to finish. The noise reduction in our Kensington townhouse is remarkable — we no longer hear the constant traffic on the high street, even in the front bedrooms."
"Specialists who truly understand listed buildings. They handled our Grade II* property with real expertise and managed the conservation paperwork so we didn't have to worry about a thing."
"Our Georgian sash windows were draughty and freezing every winter. The secondary glazing has transformed the house — warmer rooms, lower heating bills, and the original windows look untouched."
"From survey to installation the team was professional and tidy. The fit is so discreet that visitors don't even notice the secondary glazing is there. Sleep has never been better."
"We live near a busy junction and the difference is night and day. The acoustic glass they recommended cut the noise dramatically. Worth every penny for the peace and quiet."
"Honest advice, fair pricing, and beautiful craftsmanship. They talked us through every option without any pressure. I would recommend them to anyone with a period property."
Reclaim the Quiet
Tell us what noise is bothering you and we'll recommend the exact specification at a free survey, with a clear, no-obligation quote.