Choosing the right CCTV system for your home can feel overwhelming with so many options available. This guide will help you make an informed decision based on your specific needs and budget, whether you live in a compact Kandy townhouse or a larger property out toward Gampola or Digana.
Step 1: Assess Your Property
Walk around your property and identify the key areas that need monitoring. Typical locations include the main entrance, back door, driveway, garden, and any blind spots created by boundary walls or outbuildings. For most homes in Kandy, 4 to 8 cameras provide adequate coverage. Properties with larger grounds, such as those we see in Nawalapitiya estate bungalows, often need a mix of long-range outdoor cameras and shorter-range entrance units.
Draw a rough sketch of your property and mark where you think cameras should go before your site survey — it makes the conversation with your installer far more productive, and often surfaces blind spots you hadn't considered, like a side gate or a garage roof access point.
Step 2: Choose Your Camera Resolution
Resolution determines how clear your footage will be. Here are the common options:
- 2MP (1080p Full HD) — Good for general monitoring, budget-friendly
- 4MP (2K) — Excellent detail, ideal for identifying faces and number plates
- 8MP (4K) — Maximum clarity, best for high-security areas
For most residential use, 2MP or 4MP cameras offer the best balance of quality and cost. Higher resolution isn't automatically "better" for every camera position — a camera covering a wide driveway benefits more from 4MP detail than a narrow indoor hallway camera, where 2MP is already more than sufficient.
Step 3: Analogue (DVR) vs IP (NVR) Systems
There are two main camera architectures on the market, and it's worth understanding the difference before you buy:
- Analogue/HD-CVI systems record to a DVR over coaxial cable. They are generally cheaper up front and simpler to retrofit into a home with existing coax wiring.
- IP camera systems record to an NVR over standard network cable (Cat5e/Cat6), often with Power over Ethernet (PoE) so a single cable carries both power and data. IP systems typically offer sharper images, more advanced analytics, and easier expansion.
For a new installation with no existing cabling, we usually recommend IP/NVR systems — the cabling cost difference is marginal, and you get a system that will still make sense in five years. For a fuller comparison, see our dedicated guide on DVR vs NVR recorders.
Step 4: Indoor vs Outdoor Cameras
Outdoor cameras need to be weatherproof (IP67 rated) to withstand Sri Lanka's tropical climate — this matters even more for properties in humid, hill-country areas like Gampola or Nawalapitiya. Indoor cameras can be smaller dome or cube-style units. Make sure outdoor cameras have good IR night vision — at least 30 metres range — since most break-ins and property incidents happen after dark.
Step 5: Storage and Recording
You will need a DVR (for analogue cameras) or NVR (for IP cameras) to record footage. Consider how many days of recording you need — most homeowners find 15 to 30 days sufficient, though some prefer 60-90 days for extra peace of mind. A 2TB hard drive typically stores about 15 days of footage from 4 cameras at 2MP resolution; doubling either the camera count or the resolution roughly halves that retention window, so plan your hard drive size around your actual camera setup, not a generic number.
Step 6: Remote Viewing and Smart Alerts
Modern CCTV systems let you view live footage from your smartphone. Make sure your system supports a mobile app with push notifications for motion detection. This feature is essential if you travel frequently or want to check on your home during work hours. Look for systems that support "smart" motion detection — the ability to distinguish a person or vehicle from a moving tree branch or a passing cat — since this dramatically cuts down on false alerts that make people eventually ignore all notifications.
Common Mistakes to Avoid
- Buying cameras before planning coverage — decide what you need to see first, then choose hardware to match.
- Skimping on cabling — a cheap camera on good cabling will usually outperform an expensive camera on poor cabling.
- Ignoring night vision range — a camera that looks great in daylight demo footage can be nearly useless at 2am if its IR range is too short for the distance it's covering.
- Forgetting about power backup — a short UPS battery for your NVR means your system doesn't just stop recording during a power cut; it can also miss the exact moment an intruder might exploit a blackout.
Budget Guide
A basic 4-camera 2MP system with installation typically costs between LKR 45,000 to LKR 65,000 in the Kandy area. A 4MP system ranges from LKR 65,000 to LKR 95,000. Premium 4K systems start from LKR 120,000. These prices include cameras, recorder, hard drive, cabling, and professional installation. Ongoing costs are minimal — mainly electricity and, if you choose it, an annual maintenance contract for lens cleaning, firmware updates, and health checks.
DIY vs Professional Installation
Plenty of consumer camera kits are marketed as DIY-friendly, and for a single camera watching a front door, that can work fine. Once you're covering multiple angles, running cable through walls or ceilings, and configuring remote access and storage correctly, professional installation pays for itself — both in image quality (correct camera height and angle make a huge difference) and in avoiding the common failure mode of a system that "works" on day one but silently stops recording a month later because storage wasn't configured properly.
Frequently Asked Questions
How many cameras does a typical home need?
Most homes in Kandy do well with 4 to 8 cameras covering entrances, the driveway, and any blind spots along boundary walls. Larger properties with more grounds may need 10 or more to avoid gaps in coverage.
Can I add more cameras later?
Yes, as long as your NVR has spare channels and your cabling was planned with some headroom. This is one more reason to slightly over-spec your recorder and cabling at the outset rather than buying the exact minimum for today's needs.
Do I need a professional installer, or can I do it myself?
A single camera is manageable as a DIY project. Once you're planning multiple cameras, running cable through walls, and configuring remote viewing and storage correctly, a professional installation avoids the most common and costly mistakes.
At CentralTech Solutions, our CCTV installation team offers free site surveys to help you choose the right system for your specific property, whether that's a Kandy apartment or a larger home in one of our other service areas. Contact us today for a no-obligation consultation.