Expansion joints in Kolkata
3 projects in Kolkata: public and commercial buildings, designed, made in India and installed by our own crews.
3 projects
Our Kolkata record is almost entirely institutional and government work — an ESIC hospital, a state government auditorium and the Infosys campus.
We design the joint schedule from your drawings, manufacture the systems in India and install them with our own trained crews — one contract and one point of responsibility, rather than a trader supplying profiles and leaving the fixing to whoever is on site.
What Kolkata does to a joint
Seismic zone and annual temperature range are what actually set the movement a joint has to absorb. Kolkata sits in Zone III under IS 1893 — the moderate band — with an annual swing of roughly 11 °C to 40 °C.
Zone III, and soft ground
Kolkata is Zone III under IS 1893 — the moderate band, between Bengaluru and Delhi. The deltaic soil matters as much as the zone: differential settlement between blocks shows up at the joint line long before anything else in the building complains.
Humidity and monsoon are the real test
The joint that fails in Kolkata usually fails wet. Sustained high humidity and a heavy monsoon mean the waterproofing membrane and its termination detail do more work here than the metal does. A joint that is watertight on paper and site-terminated badly will leak in the first season.
Institutional buildings are cleaned, not just walked on
Hospital and government corridors are wet-mopped daily. A joint with an open gap or a raised lip collects water and dirt and becomes a maintenance complaint. On the ESIC work the deciding factor was a flush, sealed surface that could be cleaned without lifting anything.
Approvals take longer than the joint does
Government work runs on approved-makes lists and third-party inspection. Getting the system into the specification early — at drawing stage, not at fit-out — is what decides whether it gets installed as designed or substituted.
Typical systems on Kolkata work: MegAtec 300 and 340 for the floors, FlexAtec 1200 where the run must stay sealed, and MegAtec 360 for wall and ceiling joints. The right answer depends on the gap, the movement class, the traffic and the location — send drawings and we will name it per location.
Kolkata projects on record
| Project | Client & location | Sector |
|---|---|---|
| Ahluwalia Auditorium / Alipore | Govt of West Bengal · Kolkata, West Bengal · 2020 | Public Infrastructure |
| ESIC Hospital (Kolkata) | ESIC / Govt of India · Kolkata, West Bengal · 2019 | Public Infrastructure |
| Infosys Campus | Infosys · Kolkata, West Bengal | Commercial & Retail |
Part of 80+ projects across 40+ cities and 20 states. Defence and security projects under non-disclosure are not listed.
Other markets
We work nationally from Delhi. These are the markets where the project record is deepest — each page lists the buildings, the clients and what local conditions do to the joint design.
Building in Kolkata?
Send GFC or concept drawings and we will return a location-by-location joint schedule, with the gap, the system and the movement class named.