IP is the default recommendation and it is usually right — but not always. The deciding factor is frequently cabling you already have.
Most installers will recommend IP cameras, and for a new installation they are usually right. The blanket recommendation is worth examining though, because in a specific and common situation analog remains the better value.
What IP genuinely gives you
Higher resolution, and the ability to increase it later without recabling
Straightforward expansion — adding a camera means adding a network point
Analytics that run on the camera, such as line crossing or people counting
Power over the same cable as data, so no separate power run per camera
When analog is the sensible choice
The single strongest case is an older building that already has coaxial cabling in place. Modern analog systems carry high-definition video over that existing cable, which means no recabling — and in an occupied multi-floor building, recabling is frequently the largest line in the quote.
If you are replacing an aged system in a building where running new cable would be disruptive and expensive, upgrading the cameras and recorder while keeping the cable can deliver most of the benefit at a fraction of the cost.
The factor that matters more than either
Camera placement outweighs the technology choice by a wide margin. A well-positioned 2MP camera at the correct height and angle produces more usable evidence than a 4K camera pointed at a doorway in glare.
Resolution helps only if the subject occupies enough of the frame. That is a distance and angle question, settled at survey, and it is where cheap installations actually fail.
Storage scales with your choice
Higher resolution means larger files, which means either more storage or fewer days of retention. A quote that upgrades resolution without upgrading the recorder has quietly shortened how long your footage lasts.
Ask for retention in days at the quoted resolution and camera count. It is the number that most often exposes the difference between two quotes.
Mixing is allowed
Hybrid recorders accept both, so a building with existing coaxial in one wing and new construction in another does not need one technology throughout. This is frequently the cheapest correct answer and is rarely offered unless you ask.
The question to put to any installer
Ask them to justify the recommendation against your building rather than in general. An installer who recommends IP without having established whether usable cabling already exists has not looked at your site properly.
For a survey that assesses what you already have before recommending anything, see our CCTV installation service in Kerala.
For most new installations the question has largely settled, but there are still sites where a hybrid makes sense. Our CCTV installation in Kerala page covers both, and what a CCTV quote should include is worth reading before you compare prices.