AC Installation Charges in Kolkata 2026 — Complete Price Guide

1

Indoor unit mounting

Wall bracket drilling and fixing, indoor unit mounting and levelling. In Kolkata's older brick and plaster walls this is straightforward, but RCC or tiled walls take extra time and drilling equipment.

2

Outdoor unit placement and mounting

Outdoor unit placed on a stand or wall bracket with anti-vibration pads. In Kolkata high-rise flats, balcony or external wall mounting needs longer bolts and sometimes scaffolding — which adds to cost.

3

Copper pipe connection (up to 3 metres)

Copper pipes carry refrigerant between the indoor and outdoor unit. Standard quotes in Kolkata cover up to 3 metres of copper pipe — beyond that, you pay per additional metre (more below).

4

Drain pipe routing

PVC drain pipe from indoor unit to outside. Correct slope is critical — an incorrectly sloped drain pipe is one of the most common causes of AC water leakage inside the room.

5

Electrical connection to existing point

Connecting the AC to an existing dedicated electrical point near the unit. If no electrical point exists, a new one must be created — this adds ₹800–₹2,000 depending on distance from the DB board.

6

Test run and handover

Running the AC for 15–20 minutes to check cooling, gas pressure, drain flow, and remote function before the technician leaves. A good installer will not leave without confirming the unit is working correctly.

Old Building Walls — Brick, Lime Plaster, and RCC

Kolkata has a large stock of pre-1990 buildings with thick lime-plastered brick walls, and many newer buildings with RCC slabs. Both need different drilling tools. A certified installer will have a rotary hammer drill and core drill bits — not the basic drills used for regular wall work. Always ask if the installer has the right equipment before confirming.

Narrow Balconies and Tight Outdoor Unit Spaces

Most Kolkata flats — especially in areas like Kasba, Ballygunge, Tollygunge, and Behala — have narrow balconies or no balcony at all. Outdoor units often need to be mounted on external wall brackets or in building shafts. This requires longer copper pipe runs and careful planning for adequate ventilation clearance. Poor outdoor unit placement is one of the top reasons ACs stop cooling effectively in Kolkata.

Monsoon Proofing the Outdoor Unit

Kolkata receives 1,500–1,700 mm of rainfall annually — one of the highest among Indian metros. A good installation in Kolkata must include proper sealing of pipe entry points through the wall to prevent monsoon water from entering, and the outdoor unit must be positioned where rain runoff does not pool around or flood over it.

Voltage Fluctuations — Stabiliser is a Must

South and Central Kolkata areas including Jadavpur, Garia, Behala, and Tollygunge experience significant voltage fluctuations during peak summer when AC load on the grid is highest. We strongly recommend installing a voltage stabiliser (₹1,500–₹3,500) alongside every new AC in Kolkata. It protects the compressor and PCB board from damage that can cost ₹6,000–₹18,000 to repair.

Choosing the Right Tonnage for Kolkata's Climate

Kolkata's combination of high temperature and high humidity means ACs have to work harder than in drier cities. As a general rule: choose 1.5 ton for rooms up to 180 sq ft, and 2.0 ton for 180–250 sq ft. If the room faces west, has large windows, or is on the top floor under a concrete roof — go one step higher. Undersized ACs will run continuously without ever fully cooling the room and will break down faster.

Q Can the brand's own technician install it cheaper?

Brand-authorised installations from companies like Voltas, LG, or Daikin often cost more than independent certified technicians in Kolkata — and the service is outsourced to local contractors anyway. The key is certification and experience, not brand affiliation. Always verify the technician's credentials regardless of who sends them.

Q How long does AC installation take in Kolkata?

A standard single split AC installation takes 2–3 hours for experienced technicians. Add 1–2 hours if a new electrical point is needed or if the wall is RCC concrete requiring core drilling. We always complete the full job in a single visit including test run.

Q Do I need a stabiliser with my new AC in Kolkata?

Yes — especially if you live in South or Central Kolkata where voltage fluctuation during summer peak hours is common. Most new inverter ACs have some built-in voltage protection, but a dedicated stabiliser adds a critical extra layer of protection for the compressor and electronics. A good stabiliser costs ₹1,500–₹3,500 and can save you from a ₹10,000+ compressor repair.

Q What if I want to shift my AC to a different room later?

AC shifting in Kolkata typically costs ₹1,500–₹3,000 and includes uninstalling, transporting (if needed), reinstalling, and regassing if any refrigerant is lost during the process. We offer AC shifting services across South and Central Kolkata.

Q Is same-day installation possible in Kolkata?

Yes. At Unique Aircon we offer same-day and next-day installation across South and Central Kolkata. Call or WhatsApp before noon for same-day service. We cover Jadavpur, Garia, Tollygunge, Ballygunge, Kasba, Behala, Santoshpur, Dhakuria, and all surrounding areas.