Why it decides your programme
The sequence people expect is: choose a supplier, order, get windows fitted.
The sequence that actually happens in a Mumbai co-operative housing society is: survey, apply to the society, wait for the committee, get manufacture underway, book the service lift, then fit.
Manufacturing a flat’s worth of windows takes a predictable number of weeks. Waiting for a committee that meets once a month does not. Start the application the day after the survey, while the units are being made, and the two run in parallel instead of end to end.
What committees actually care about
Very little of it is about your window.
The external appearance. This is the whole game. A committee’s job, as it sees it, is keeping the elevation consistent — so a white frame among white frames sails through, and a dark grey one on a building of white ones may not. The same applies to grills, and to an opening type that projects outward where neighbours’ do not.
Structural work. Anything involving cutting into the opening, or a substantially heavier unit, may prompt questions. Ballistic and thick acoustic glazing fall here.
Access and disruption. Service-lift use, working hours, debris removal, and who is responsible if something is damaged in a common area.
Water. Committees that have dealt with a leak from someone else’s badly-fitted window will ask about sealing. This is a fair question and a good sign.
What they rarely question is performance: nobody objects to better glass.
What to submit
Send a short covering note and these:
- A dimensioned elevation drawing of the proposed window — width, height, how it opens, where the divisions fall. We produce this after survey.
- The frame colour and finish, ideally with a sample or a reference from colour options. “White” is not specific enough if the building has a particular white.
- A photograph of the existing window, inside and outside, so the committee can see what is changing and what is not.
- The requested working hours and how many days.
- Whether you need the service lift, and on which days.
A drawing answers most objections before they are raised. A verbal description invites a committee to imagine something worse than what you are proposing.
If they say no
Usually it is a no to one detail rather than to the work.
- Colour — a foiled profile can be one colour outside and another inside, so the elevation stays uniform while your room gets what you wanted.
- Opening type — an outward-opening sash that projects can often become a slider or an inward-opening unit with no loss.
- Sightline — a slimmer or deeper section can usually be found that reads closer to the existing elevation.
We would rather re-specify than have you argue. A window you can actually have next month beats the one you were quoted.
Listed and heritage buildings
A separate and slower process, with conservation constraints on top of the society’s. Here the usual answer is either matched slim replacement sections or secondary glazing behind retained originals — because nothing on the protected elevation changes, which is precisely what makes approval possible.
The practical order of events
- Survey and quote
- Drawing issued for the society application
- Application submitted — start here, not later
- Manufacture begins
- Permission granted; service lift booked
- Installation
- Handover checks — see window installation
If you are at the beginning of this, how to measure for replacement windows will get you a useful first conversation, and window replacement covers what the work itself involves.