Door and window installation checks in Kerala
Frame material and fixing get covered by architraves and sealant. Kerala rain tests every frame joint for decades.
The checks at this stage (3)
- Photograph before this is covered
What disappears at this stage: frame material and fixing, once architraves are fitted. It cannot be inspected again without breaking something, so the photos taken now are the only record that will ever exist. Skipping this stays on your handover record permanently.
- Frames plumb, and holdfasts anchored into masonry
A door frame fixed to plaster rather than into the wall works loose with use. It shows as a door that stops closing a year after handover, and the fix means opening the wall.
- Timber moisture and treatment recorded for this climate
Unseasoned timber in Kerala humidity warps and invites borer. A door that fits at handover and jams every monsoon is a timber decision, not a carpentry one.
What good work looks like
Every frame material fixes differently
Timber frames anchor with holdfasts built into the wall. Steel frames are lugged and grouted. Aluminium and uPVC screw into plugs with packers, then get sealed. Each has its own current standard - and its own way of failing when fixed like one of the others.
- The fixing method matching the frame material
- Enough fixings in each side, not just top and bottom
- Frame checked plumb and square before sealing
- A frame held mainly by foam and hope
- Two screws a side into crumbling plugs
- Squareness fixed cosmetically with the architrave
IS 4021 (timber) · IS 1038 (steel) · IS 1948 (aluminium) · IS 17953:2023 (uPVC) · IS 1081
The sealant line is the rain defence
A continuous flexible sealant runs around the outside of every frame over a backing rod. Under Kerala's driving rain this thin line is the whole defence - and the sill corners are where it fails first and lets water walk in behind the wall finish.
- An unbroken seal line around the outer frame
- Extra care visible at the two sill corners
- A drip groove shedding water clear of the joint
- Gaps and skips in the seal at the corners
- Mortar packed in place of flexible sealant
- No drip detail, water tracking back to the joint
Manufacturer data - no IS numeric joint rule
Hardware screws into solid material only
Hinges and locks carry the door's whole working life. They fix into solid frame material - never into packers, filler or foam. A hinge in foam works perfectly for a month, which is exactly what makes it expensive.
- Hinge and lock screws biting solid frame
- Full-length screws, all holes used
- Doors swinging true with no early sag
- Screws spinning in filler or foam
- Half the screw holes left empty
- A sagging shutter within the first weeks
Trade practice - fixing method is not code-set
Red flags and money traps
The thin sealant line around each frame is the entire rain defence, and it fails first at the two bottom corners. Under Kerala's driving rain, a skipped corner is a damp patch inside by next monsoon.
Look for: An unbroken outer seal with visible care at both sill corners, plus a drip groove.
uPVC window profiles have a current Indian specification. Quotes citing outdated references or no reference at all deserve one question: which standard, which profile, which wall thickness - in writing.
Ask: The exact profile spec in writing before fabrication is confirmed.