How to Reduce Outside Noise Through Your Windows
Road noise is one of the most common reasons homeowners come to us in Kota and Jaipur — a busy road, a nearby market, or just a noisier neighbourhood than expected. Here's what actually reduces sound transfer through a window, and what doesn't help as much as people assume.
The frame matters as much as the glass
A common misconception is that thicker glass alone solves noise. In practice, a poorly sealed frame leaks sound around the edges no matter how good the glass is. A well-sealed frame construction reduces sound leakage around the edges of the window, not just through the glass — this is often the bigger factor in older or badly-fitted windows.
Glass build-up that helps
Once the frame seal is solid, glass choice becomes the next lever:
- Laminated glass — the interlayer between panes dampens sound transmission, not just impact.
- Double-glazed units (DGU) — the sealed air gap between two panes reduces noise transfer compared to single glazing.
- Wider air gaps in a DGU generally perform better for noise than narrow gaps, though this needs to be balanced against frame depth.
uPVC's natural advantage
uPVC offers strong thermal and sound insulation with a classic profile, which is why it's frequently the starting recommendation for road-facing bedrooms specifically. Aluminium can still perform well acoustically when paired with the right glass, but uPVC's material properties give it a head start for sound-focused openings.
What doesn't help much
Adding curtains or blinds makes a negligible difference to outside noise — they can help with echo inside the room, but do very little against sound coming through the window assembly itself. If noise is the priority, the fix needs to happen at the window, not the dressing around it.