01
The seal, not the frame
Water gets in around a window far more often than through it. Correct sealing of the frame to the wall opening, with a drip groove above, matters more than whether the frame is UPVC or aluminium.
5–15 daysPer unit
The two things a Bengaluru window has to handle are driving monsoon rain and traffic noise. Most builder windows handle neither well.
Door and window replacement in Bengaluru costs ₹12,000 to ₹65,000 per unit. A standard UPVC sliding window runs ₹18,000–₹32,000 installed; a flush internal door ₹12,000–₹22,000; and acoustic double glazing ₹45,000–₹65,000 per window.
Four things, and the frame material is the least of them.
Water gets in around a window far more often than through it. Correct sealing of the frame to the wall opening, with a drip groove above, matters more than whether the frame is UPVC or aluminium.
Laminated or double glazing genuinely cuts traffic noise by 25–35 decibels. It costs roughly double a standard unit. On an arterial road in Bengaluru it is worth it; on an internal road it usually is not.
Sliding wastes no space and seals less well. Casement seals better and needs swing clearance. For a balcony in heavy rain, a well-made sliding with a proper drainage track is usually the practical answer.
Most Bengaluru developments restrict changes to the external appearance. Frame colour and profile often have to match the building. We check before ordering, not after.
Renovation failures are almost always sequencing or preparation, not materials.
Every opening measured at three points. Builder openings are rarely square, and a window ordered to one measurement will leave a tapering gap.
Not just foam. Foam alone absorbs water and fails within a few monsoons.
Sliding windows drain through weep holes in the track. Blocked weeps are the single most common cause of water entering a "leaking" window.
A small detail in the lintel that stops water running down the wall and into the frame head.
Sequenced so nothing has to be done twice.
A site visit that records what is actually there, not what the plan says. Older buildings hide surprises and we would rather find them before quoting than after starting.
Civil, plumbing, electrical, waterproofing, then finishes. Renovation goes wrong when trades overlap in the wrong order, and that order is not negotiable.
One project manager, one WhatsApp group, daily photographs. You know what happened on site every day without having to ask.
Snag list closed in writing, debris cleared to the building's designated point, and every warranty document handed over together.
Per unit, including removal of the old one, fitting and sealing.
Internal flush doors, or a basic UPVC window in a standard opening.
UPVC or aluminium sliding window with toughened glass, mesh and proper sealing.
Acoustic double glazing, or a large-format sliding system with a low threshold.
| What you get | Essential | Premium | Luxe |
|---|---|---|---|
| Starting price | ₹12,000 | ₹28,000 | ₹65,000 |
| Old unit removal | Yes | — | — |
| Standard glazing | Yes | — | — |
| Frame sealing | Yes | — | — |
| Hardware and locks | Yes | — | — |
| Toughened glass | — | Yes | — |
| Insect mesh | — | Yes | — |
| Backer rod and sealant | — | Yes | — |
| Drainage track detail | — | Yes | — |
| Acoustic double glazing | — | — | Yes |
| Large-format system | — | — | Yes |
| Low threshold detail | — | — | Yes |
| Written warranty | — | — | Yes |
External changes usually need association approval, since frame colour and profile often have to match the building elevation.
₹18,000–₹32,000 for a standard UPVC sliding window installed. Acoustic double glazing runs ₹45,000–₹65,000 per window. Internal flush doors are ₹12,000–₹22,000.
UPVC insulates better against heat and noise and does not corrode. Aluminium is stronger, so it allows slimmer frames and larger spans. For most Bengaluru flats UPVC is the better value; for large picture windows, aluminium.
Yes, meaningfully — 25 to 35 decibels with laminated or double glazing, which is the difference between hearing traffic and noticing it. It costs roughly double. On an arterial road it is worth it; on a quiet internal road it usually is not.
Most often blocked weep holes in the sliding track, or a failed seal between the frame and the wall. Both are far more common than a fault in the window itself, and both are cheaper to fix than a replacement.
For anything visible from outside, usually yes. Most Bengaluru developments require the frame colour and profile to match the building elevation. We check before ordering rather than after the units arrive.
We work across Bengaluru, and we quote after seeing the site — never over the phone.
Staining below a window usually means the seal, not the glass.
Written on-time guarantee · 10-year warranty
Free consultation + 3D design of your own floor plan. Fill in to unlock the offer.
No spam. Your number stays private. By continuing you agree to our Terms & Privacy Policy.