Windows · Bengaluru and Delhi NCR
Gap in Window When Closed? Causes & Repair Cost
A gap in a closed window sits either around the frame or around the part that moves.
₹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
- sliding window gap
- aluminium window gap
- dust coming through windows
The short answer
A gap in a closed window is usually an open joint where the frame meets the wall. Otherwise the gap is around the shutter, the part of the window that moves. Its seals may have worn flat, or worn rollers have let it drop. Most of these gaps are closed in one visit.
Why it happens
Usually one of these 5 things, commonest first. Each one says how to tell, and what we do about it.
The joint between the frame and the wall has opened
- How to tell
- You see a dark line or a thin slot along the edge of the frame. Fine dust gathers on the sill, the ledge under the window, close to that edge. The top edge of the frame is a common place for it, and the hardest to see.
- What we do
- We dig out the crumbled filling and pack deep gaps with a foam cord. Then we run a flexible sealant into the joint, outside and inside.
Window Gap SealingFrom ₹1,260 / windowSee this fixThe seals along the shutter have flattened
- How to tell
- Seals are the rubber or brush strips that close the space between the shutter and the frame. Worn brush strips lie flat or have bare patches. The shutter shuts, but you can rattle it by hand.
- What we do
- We remove the old strips and fit new ones of the right thickness for your gap. Then we set the lock so the shutter closes snug without a push.
Window Seal ReplacementFrom ₹765 / windowSee this fixThe two shutters no longer hook together in the middle
- How to tell
- The interlock is where two sliding shutters meet and hook into each other. When one shutter drops, the hooks miss. A thin gap then runs the full height of the window.
- What we do
- We set the shutter height until the hooks engage along their whole length. We also renew tired brush strips and seal the inside line of the frame where air gets in.
Window Air Leakage RepairFrom ₹1,350 / windowSee this fixThe window stops short of closing
- How to tell
- The shutter will not slide or swing the last part of the way. A gap stays at the closing edge, and the lock cannot catch. Grit in the track or a broken catch is usually the reason.
- What we do
- We find what is holding the window before using any force. A packed track is cleaned, and a broken catch is replaced. Then we check that it closes fully and locks.
Window Not Closing RepairFrom ₹1,350See this fixWorn rollers have let the shutter drop
- How to tell
- Rollers are the small wheels under a sliding shutter. When one wears, the shutter sits lower at that end. The gap is then wider at one top corner than at the other.
- What we do
- We fit a new pair of rollers and clean the track under them. Then we adjust the height so the shutter sits level against the frame.
Aluminium Window Roller ReplacementFrom ₹808 / pairSee 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.
- Shine a torch along the frame edge at night and look for a dark slot.
- Hold a strip of tissue near each edge of the closed window and watch where it moves.
- Look at the brush strips on the shutter edges to see whether they stand up or lie flat.
- Check whether the gap is even, or wider at one end of the shutter.
- Brush loose dirt out of the bottom track, then try closing the window again.
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.
| Fix | Starting price | How it is priced | Link |
|---|---|---|---|
| Window Gap Sealing | ₹1,260/ window | One fixed price per window, supplied and fitted. | See this fix |
| Window Seal Replacement | ₹765/ window | One fixed price per window, supplied and fitted. | See this fix |
| Window Air Leakage Repair | ₹1,350/ window | One fixed price per window, supplied and fitted. | See this fix |
| Window Not Closing Repair | ₹1,350 | One visit covers travel and the work to fix the fault. Any parts are priced on their own line. | See this fix |
| Aluminium Window Roller Replacement | ₹808/ pair | One fixed price per pair, 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.
Chat on WhatsAppA photo or a video is enough to startCommon questions
Can foam tape close a gap in my window for good?
Not for long. Stick-on tape comes loose in heat and gets crushed flat by the shutter. It can also stop the window closing or locking properly. A seal that sits in the window's own groove lasts much longer.
Can mosquitoes get in through a gap in the window?
Yes, and so can ants. They use thin slots around the frame, and mesh on the shutter does not cover those. Sealing the joint around the frame closes that way in. A torn mesh is a separate job.
Why does a window in a newer flat already have a gap?
Part of the joint around the frame may have been left unfilled when it was fitted. The frame also moves a little with heat, and hard filling cracks along that line. Rollers and seals can be set badly at fitting too. Each of these is repaired the same way as on an older window.
Can a gap be fixed without taking the whole window out?
Yes. Each fix on this page works on the window you already have. The joint is sealed in place, seals go into their grooves, and rollers go under the shutter. A new window is rarely needed just for a gap.
Related problems
Other problems with the same kind of door, window or fitting, and where to go next.
Windows
- Sliding Window Hard to Slide
- Window Leaking Rain Water
- Window Not Locking Properly
- Window Handle Broken or Loose
- Window Handle Stuck
- uPVC Window Not Closing Properly
- uPVC Window Leaking
- Sliding Window Off Track
- Sliding Window Making Noise
- Window Glass Rattling
- Window Glass Loose in Frame
- Window Glass Cracked
- Water in Sliding Window Track
- Cold Air Coming Through Window
- Window Whistling in Wind
- Traffic Noise Coming Through Windows
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.
