CCTV Installation & Service in Kolkata

Looking for reliable CCTV installation and service in Kolkata? FindService.in lists verified local CCTV technicians who handle everything from a single doorway camera to complete multi-camera systems for homes, shops, offices, warehouses, clinics and gated communities across Salt Lake, New Town, Rajarhat, Ballygunge, Alipore, Bhowanipore, Tollygunge, Jadavpur, Garia, Behala, Dum Dum, Lake Town, Baguiati, Kasba and the rest of Kolkata. Before you take a quote, it helps to understand that a CCTV system is four separate purchases bundled into one price, and a good installer will quote each of them openly. The cameras decide what you can see. The recorder — a DVR for analog and HD cameras over coaxial cable, or an NVR for IP cameras over network cable — decides how many channels you get and what resolution it can actually store. The hard disk decides how many days of footage you keep before it overwrites, and it must be a surveillance-grade drive built for continuous writing, not a spare desktop disk. The cabling, power supply, conduit and mounting decide whether the system still works in two years. When a quote hides three of these four inside one lump sum, you cannot tell whether you are buying a good system or a cheap one dressed up. Camera count matters far less than camera placement, and this is where most money is wasted in Kolkata. Four cameras positioned at the real entry points — the gate, the main door, the parking or compound side and the terrace stair — beat eight cameras spread decoratively around a building. A useful camera is mounted between eight and ten feet high, angled downward, facing away from direct sunlight and bright headlights, and framed so a face crossing that point fills a reasonable part of the frame. A camera at fifteen feet looking across a wide compound gives you a person-shaped blur that identifies nobody. Ask your installer to walk the property with you, stand at each proposed position and describe exactly what that camera will show. Ask specifically about number-plate capture if that is your goal, because reading a plate needs a tighter frame and a dedicated camera, not a wide-angle overview. Resolution deserves a plain explanation. 2MP or 1080p remains adequate for most doorways, corridors, shop counters and small compounds, and it keeps storage requirements sane. 4MP and 5MP help where you need to cover a wider area from one position or digitally zoom into recorded footage later, which suits large compounds, showrooms, warehouses and parking areas. Going higher multiplies storage and requires a recorder that supports that resolution on every channel, not just one. A dishonest quote pairs high-resolution cameras with a recorder that downgrades them on recording, which is a very common way of making a proposal look impressive. Ask for the recorder's model number and check that it records at the resolution you are paying for, on all channels, at the frame rate quoted. Night performance is where cheap systems fall apart. Infrared range on a spec sheet is measured in ideal conditions; in a real compound with a wall, a tree and a gate, effective range is much shorter. If the area has some ambient light, a colour night-vision camera gives far more useful footage than an infrared black-and-white image. Never mount an IR camera behind glass or inside a window, because the infrared reflects back off the pane and produces a white glare. Watch out for dome covers too: any smear, dust film or scratch on the cover turns IR light into a haze that ruins the whole image, which is why lens and dome cleaning has to be a scheduled task rather than an afterthought. Storage and retention should be a decision, not an accident. Work backwards from how long you want to keep footage: many homes are comfortable with fifteen to thirty days, shops usually want thirty, and businesses handling cash, stock or customer disputes often want sixty or more. Your installer should calculate disk size from camera count, resolution, frame rate and whether recording is continuous or motion-triggered, then show you that calculation. Motion-only recording stretches storage a long way but must be configured carefully, because a badly tuned motion zone triggered by every passing vehicle fills a disk as fast as continuous recording, while an over-tightened one misses the event you needed. Also ask what happens when the disk fails, because a system silently not recording for three months is worse than no system at all — a good installer enables disk-health and recording alerts and shows you how to spot them. Remote viewing is the feature everyone wants and the one most often left half-finished. Insist that mobile viewing is configured on your phone, not just the installer's, that you can see live view and play back recorded footage, and that you are given the app name, device ID, and the login and password — changed from the factory default in front of you. Default credentials on internet-exposed recorders are the single biggest reason Indian CCTV footage ends up on the open web, so a factory password left in place is an unacceptable handover. Where possible prefer manufacturer P2P cloud access over crude port forwarding, keep the recorder firmware updated, and give family members a separate viewing account rather than sharing the administrator login. Kolkata's delta humidity, long monsoon and frequent street waterlogging attack outdoor cabling, junction boxes and ground-level power supplies harder than heat ever does. That drives several practical choices in this city: outdoor cameras must be genuinely weather-rated rather than an indoor unit in a plastic shell, cable entries need drip loops so water runs away from the housing, junction boxes belong in sheltered positions, and the recorder needs a cool, ventilated place — never a sealed cupboard. Power quality is the other local reality. Cameras on a shared undersized SMPS reboot randomly when all channels draw at once, so ask for the power supply rating against total camera load, and put the recorder and router on an inverter or UPS circuit so an outage does not create a convenient recording gap. Kolkata's building stock shapes every CCTV design here. In the older parts of Bhowanipore, Shyambazar, Maniktala, Behala and Tollygunge, houses sit on narrow lanes with shared entrances, so the useful cameras are one covering the street door at head height, one on the staircase landing and one on the courtyard or rear service door — and cable must be routed in conduit clear of the damp plinth, because plaster here stays wet for weeks. In the newer towers of New Town, Rajarhat and Salt Lake, flats need only flat-door and balcony coverage since the society handles the gate, lobby and basement. Sector V offices, Park Street showrooms and Gariahat shops need counter, entry and cash-desk framing plus a recorder locked in a ventilated cabinet, because summer humidity plus a sealed box is the fastest way to kill a hard disk. Ground-floor recorders anywhere in the waterlogging belts of Behala, Kasba, Santoshpur and parts of Garia should be mounted high on the wall, never on a low shelf, and every outdoor camera needs a drip loop so water runs off the cable instead of into the housing. There is a legal and courtesy dimension worth getting right. Cameras may cover your own property, entrance, compound and shared approaches, but pointing one into a neighbour's window, door or private garden invites a genuine dispute and possible action. In shared buildings, camera positions covering common corridors, lifts and gates should be approved by the association or resident body in writing. Never install cameras in bathrooms, changing areas, or bedrooms occupied by staff or tenants. Workplaces should tell staff in writing where cameras are and why, and a visible signage board at the entrance is good practice everywhere. Footage you record is personal data — keep the recorder physically locked, restrict who can export clips, and share footage with third parties only when Kolkata Police or a court asks for it. Verification of the installer matters as much as verification of the product. Ask how long they have been fitting CCTV, which recorder brands they are trained on, whether they stock spares locally, and whether they will return for a channel addition or a disk upgrade in two years. Ask for an itemised written quotation naming the make and model of every camera, the recorder, the hard disk brand and capacity, cable type and length, power supply rating, conduit and labour, plus warranty terms for hardware and workmanship separately. Ask what an AMC covers: how many preventive visits, whether lens cleaning and disk-health checks are included, response time for a fault, and what is charged extra. Every CCTV technician listed on this page is manually verified by our team, and FindService.in charges no commission on any work you award. Compare years in the trade, brands each provider works with, whether they handle homes only or also shops, offices and industrial sites, the Kolkata areas they cover and the languages they speak (Bengali, Hindi and English), then contact them directly by phone or WhatsApp. FindService.in is a listing platform only. We do not install, supply, monitor, service or guarantee any camera, recorder or surveillance system, we charge households and businesses nothing, and we are not a party to any contract you sign. Listings are verified for identity and contact details only, so please confirm scope, warranty and pricing in writing directly with the provider.