CCTV installation 2026: complete guide
How to plan a reliable camera system for a house, apartment building or business premises.
CCTV installation in 2026 is no longer only about placing cameras on walls. A reliable system combines the right camera type, correct cabling, recording storage, mobile access and privacy-aware positioning.
Camera choice
Resolution, lens angle and night vision must match the exact area you want to monitor.
PoE cabling
Wired IP cameras with PoE are usually more reliable than Wi-Fi cameras for permanent systems.
Recording
NVR storage should be planned around camera count, bitrate and desired archive length.
Start with the purpose
Before choosing equipment, define what the system must achieve: entrance overview, vehicle identification, perimeter monitoring, indoor security or evidence-quality recordings. A camera that is good for a wide overview may not be suitable for faces or license plates.
IP cameras, PoE and resolution
For most new installations, IP cameras with PoE are the best baseline. They receive power and data through one cable, are easier to manage centrally and support modern analytics. 4MP and 8MP cameras are common choices, but resolution alone does not guarantee a useful image.
Night vision matters
Traditional infrared night vision gives a clear black-and-white picture in darkness. Color night vision can preserve more detail when there is enough ambient light or additional illumination. The right option depends on the site, not on marketing names alone.
Recording and mobile access
A good NVR setup balances image quality and archive length. Storage can be configured for continuous recording, motion-based recording or a hybrid approach. Mobile access should be secured with strong passwords, app permissions and correct network settings.
Common mistakes
- Cameras are mounted too high for face identification.
- Wi-Fi cameras are used where a stable wired connection is possible.
- Storage is too small for the required archive period.
- Camera angles cover private areas unnecessarily.
Frequently asked questions
How many cameras does a house need?
A typical house often needs 4-6 cameras: entrances, driveway, garden side and technical areas. The exact number depends on blind spots and the desired detail level.
Are Wi-Fi cameras reliable enough?
Wi-Fi cameras can work for small or temporary needs, but a permanent security system is usually more reliable with wired PoE cameras.
How long are recordings stored?
Archive length depends on disk size, camera count, bitrate and recording mode. Many systems are planned for several days to several weeks of storage.
Planning a CCTV system?
ProValve designs and installs camera systems for homes, apartment buildings and business premises in Estonia.