At your location in just 29 minutesGet the measurements right away.T&C

Window Gap Sealing, the commonest fix for traffic noise coming through windows

Windows · Bengaluru and Delhi NCR

Traffic Noise Coming Through Windows? Causes & Repair Cost

Closing the gaps cuts road noise that leaks in, but single glass still lets some sound through.

₹1,260/ window starting price₹1,40010% off

The starting price for Window Gap Sealing, the commonest fix. One fixed price per window, supplied and fitted.

  • Verified on-site measurement
  • 2-year product warranty, 6 months on the work
  • Professional site manager on every job
Traffic Noise Coming Through Windows

Add a photo of the problem

Optional, but it helps us bring the right part.

Free to book. No payment now.

Also searched as
  • noise coming through windows
  • outside noise coming through windows

The short answer

Traffic noise usually gets in through the gaps around a window more than through the glass. The common gaps are an open joint around the frame, flat seals and shrunken rubber around the glass. Sealing them makes the room quieter, but single glass will still let sound through. For real quiet, we also fit double-glazed windows.

Why it happens

Usually one of these 4 things, commonest first. Each one says how to tell, and what we do about it.

  1. Sound comes through an open joint around the frame

    How to tell
    The noise seems to come from the edge of the window, not the middle of the glass. You may see a dark slot where the frame meets the wall. Dust and small insects often use the same gap.
    What we do
    We clean the joint out and fill deep gaps with a foam cord. We then seal it inside and outside, closing the path the sound was taking.
    Window Gap SealingFrom ₹1,260 / windowSee this fix
  2. The seals on the shutter have worn thin

    How to tell
    The shutter is the part of the window that slides or opens. Traffic sounds loudest at its edges, where the seals, the rubber or brush strips, look flat. It may rattle when a heavy vehicle passes.
    What we do
    We fit new seals sized to the gap, so the shutter closes against something soft. We then check that the lock pulls it firmly onto the new seals.
    Window Seal ReplacementFrom ₹765 / windowSee this fix
  3. The glass buzzes because its rubber has shrunk

    How to tell
    Glazing rubber, the rubber strip that grips the glass, keeps an aluminium pane firm. Once it shrinks, the pane buzzes when a bus or truck goes past. That buzz adds to the sound from the road.
    What we do
    We replace the rubber all round the pane with a profile that suits your glass. The firm pane stops buzzing, and the small gaps at its corners close.
    Aluminium Window Rubber ReplacementFrom ₹723 / windowSee this fix
  4. The middle of a sliding window does not close tight

    How to tell
    Noise is loudest at the upright line where the two shutters meet. That line, the interlock, should hook tight when the window is shut. If you feel air there, sound is getting through too.
    What we do
    We set the shutter height so the interlock closes fully, and renew flat brush strips. The same work also cuts the dust and draughts along that line.
    Window Air Leakage RepairFrom ₹1,350 / windowSee this fix

What you can check first

These checks are safe to do yourself. A photo or a short video of what you find helps us come prepared.

  • With the window shut, put your ear near the frame edge and then near the glass, and compare.
  • Listen for a buzz from the pane when a heavy vehicle goes past.
  • Look for a dark line where the frame meets the wall.
  • Press the locked shutter lightly as a vehicle passes and notice whether the noise drops.

What the repair costs

Every fix on this page, with its starting price before GST. We find which one you need, and you get a fixed price before any work starts.

FixStarting priceHow it is pricedLink
Window Gap Sealing₹1,260/ window₹1,40010% offOne fixed price per window, supplied and fitted.See this fix
Window Seal Replacement₹765/ window₹90015% offOne fixed price per window, supplied and fitted.See this fix
Aluminium Window Rubber Replacement₹723/ window₹85015% offOne fixed price per window, supplied and fitted.See this fix
Window Air Leakage Repair₹1,350/ window₹1,50010% offOne fixed price per window, supplied and fitted.See this fix

Not sure which one it is? Send a photo or a short video. We will tell you what it looks like, usually within minutes, before anyone comes out.

Common questions

Will sealing my windows stop all the traffic noise?

No. Sealing closes the gaps, and the gaps are usually the loudest path. Sound still passes through a single pane of glass. The room becomes quieter, not silent.

How does a double-glazed window help with road noise?

It has two panes of glass with a sealed space between them. Less sound passes through that than through one pane. We supply and fit double-glazed aluminium and uPVC windows as new windows. It is the step to take when sealing alone is not quiet enough.

Should I seal the gaps first or go straight to double glazing?

It depends on how loud the road is. Sealing is the smaller job, and you hear the difference at once. If the room is still too loud, a double-glazed window is the next step. A new window needs a sealed joint too, so the sealing is not wasted.

Related problems

Other problems with the same kind of door, window or fitting, and where to go next.

Get it fixed at your place

We come to you anywhere in Bengaluru and Delhi NCR. We find the cause, and give you a fixed price before any work starts.

  • Certified toughened safety glass. It stays safe even if it ever breaks.
  • Genuine branded fittings
  • We buy authentic materials from reputable, established suppliers.
  • We check the quality before we leave. Most jobs are done in 3 to 4 days.
  • No hidden fees. GST is shown as its own line on the quote.
  • Your details stay protected and confidential on a secure connection.
  • You get dedicated support after fitting, from the same team every time. They are dependable.
  • Easy and transparent from the first message. We work customer-first, so the job stays hassle-free.
Traffic Noise Coming Through Windows

Add a photo of the problem

Optional, but it helps us bring the right part.

Free to book. No payment now.

Traffic Noise Coming Through Windows

Add a photo of the problem

Optional, but it helps us bring the right part.

Free to book. No payment now.

Chat on WhatsApp