Planning a New House? Security Wiring to Lay Before Plastering

Short answer: before plastering, lay empty PVC conduit with a pull wire from every security point (gate, main door, camera positions, alarm sensor spots, intercom points and boundary wall) back to one central spot near your router and inverter. Conduit is cheap and takes a day; cutting finished walls later costs far more. You can choose and buy the devices after the house is built, as long as the pipes are already in the walls.

Most homeowners plan lights, fans and AC points with the electrician and forget security until the painter has left. Then the video door phone cable runs on the surface, the camera wire hangs across the porch and the gate lock never gets connected to the door phone. This guide lists what to lay, where, and why, with the products that go on these points later.

What is a security pre-wiring plan?

It is a simple drawing of your house plan with every security point marked and a conduit route from each point to a central "security corner". That corner is usually a wall in the staircase, a store or under the stairs, close to the Wi-Fi router and on the inverter circuit. Everything comes back there: the camera recorder, the alarm panel, the door lock power supply and the intercom.

• Use separate conduit for security and low-voltage cables. Do not share a pipe with 230V mains wiring. Low-voltage signals pick up noise from mains cables.
• Leave a pull wire in every conduit so cable can be pulled later.
• Use bigger conduit where many cables meet, such as near the security corner.
• Put a junction box at every device point, with a cover, so the end is easy to find after plastering.
• Photograph every wall before plastering with a tape measure in the frame. You will thank yourself later.

Where should the conduit go? A room-by-room list

1. Gate pillar to indoor monitor (video door phone). One conduit from the outdoor bell unit on the gate pillar to the indoor screen position, usually in the living room or near the main door. Lay the cable type your door phone's manual asks for, plus a spare.
2. Gate pillar to a lock point (electronic gate lock). If you will fit an electronic lock on the gate, run conduit from the lock position on the pillar to the indoor power supply, and on to the door phone monitor so the unlock button can open the gate.
3. Gate motor. A sliding or swing gate motor needs a mains power cable to the motor position, and a separate conduit for accessories such as photocells and a flashing light. For sliding gates, plan a conduit under the driveway if any accessory sits on the far side. Our sliding gate motor buying guide covers gate weight and motor choice, and the Gate Builder lists every part.
4. Main door lock. If you may fit an EM lock, drop bolt or electronic rim lock later, run conduit from the door frame (lock side) to an exit button position inside and to a power supply point. Read the door access control guide to see what each lock type needs.
5. Camera points. Mark each corner of the house, the gate, the parking, the back lane and the terrace door. Run conduit from each point to the security corner. Each camera needs a signal cable and power, either a power point near the camera or a cable from a central power supply.
6. Alarm sensor points. For a wired alarm, run thin conduit to the top of each outside door frame and each ground-floor window, to one corner of each room for a motion sensor, to the ceiling of the passage for a smoke detector, and to an outside wall high up for the siren. If you plan wireless sensors instead, skip these and keep just a power point for the panel.
7. Intercom between floors. If you want an EPABX or room-to-room phones, run telephone cable conduit from the security corner to each bedroom and the kitchen.
8. Boundary wall beams. For infrared beams, run conduit along the boundary wall to each beam position, with power at both ends of each run. Our beam sensor guide explains spacing and range.
9. The security corner itself. Plan two or three power sockets on the inverter circuit, a network point from the router, and wall space for a small rack.

How to plan it with your electrician in one visit

1. Print the floor plan and mark the security corner first.
2. Walk the site with the electrician and mark each point from the list above with chalk on the wall.
3. Decide which points will be wired devices and which will be wireless, and skip conduit only where you are sure.
4. Agree the conduit sizes, junction boxes and pull wires, and keep security pipes away from mains pipes.
5. Check every conduit with the pull wire before plastering.
6. Photograph and label every run, and keep the photos with your house papers.

Products that go on these points later

These are in-stock items from our store that match the wiring above. You do not need to buy them before plastering, but it helps to know what will fit.

Point	Product	What the listing says	Price
Gate and main door	Hikvision DS-KIS205T wired video door phone	7-inch indoor monitor, HD outdoor doorbell camera, one-touch unlock	₹6,000
Gate and main door	Secureye S-VDP9 video door phone	7-inch screen	₹4,999
Gate lock	Combo-CN9 audio door phone with electronic lock	Door lock opens from the audio door phone	₹4,199
Main door lock	PSWF-01 Wi-Fi power supply	Opens an electronic door lock from the mobile app	₹2,750
Camera points	PVCB-44 Jensonic PVC junction box	Square PVC box for camera cable joints	₹300
Camera power	Hikvision 12V 5A CCTV power supply	Central 12V supply for cameras	₹849
Camera signal over network cable	VB-04 4-channel video balun, set of 2	Carries HDCVI, AHD, HDTVI or CVBS video over UTP cable	₹1,499
Security corner	CP Plus CP-UNR-108F1 8-channel NVR	For IP cameras, up to 8MP, 1 SATA hard disk up to 8TB	₹5,999
Security corner	RK-4U wall rack	4U metal rack with 4 power sockets and glass door	₹1,949
Door and window sensors	MC-2T wired magnetic door sensor, pack of 10	2-wire magnetic contacts	₹1,799
Room corners	PIRW-12 wired PIR motion sensor	Wired motion sensor for alarm systems	₹1,199
Passage ceiling	SMK-WD wired photoelectric smoke detector	Wired smoke sensor	₹899
Outside wall	SRW-30 30W dual-tone siren	Indoor/outdoor, waterproof, 6-12V DC, 120 dB	₹1,499
Intercom points	TW-2P telephone wire, 2 pair, 90 m	For EPABX and intercom extensions	₹1,799
Boundary wall	ABT-150 wired dual beam sensor	Dual beam infrared barrier, 150 m in the title	₹3,299

Check that your alarm panel has enough wired zone inputs before you buy wired sensors. If you would rather go wireless, see our Wi-Fi and GSM alarm guide; you will still want the siren and panel points.

Common mistakes to avoid

• Running camera or door phone cable in the same pipe as mains wiring.
• Forgetting a power point at the gate pillar for the door phone, lock or motor.
• No conduit across the driveway, so gate accessories are wired on the surface later.
• Placing the security corner where there is no inverter backup.
• Not marking conduit ends, so the painter seals them under putty.

Browse security for homes and villas, video door phones and wired alarm sensors, or plan the full system in the Security System Builder.

FAQ

What security wiring should I do before plastering a new house?

Lay empty PVC conduit with pull wires from the gate, main door, every camera position, alarm sensor points, intercom points and the boundary wall to one central security corner near the router and inverter.

Can CCTV cable run in the same conduit as electrical wiring?

It is better not to. Keep camera, door phone, alarm and telephone cables in their own conduit, separate from 230V mains wiring, to avoid interference and for safety.

Where should the video door phone cable go?

From the outdoor unit on the gate pillar or beside the main door to the indoor monitor position. If you will add a gate lock, also run conduit from the lock to the monitor and power supply so the unlock button can open it.

Do I need wiring for a wireless alarm?

Very little. Wireless sensors run on batteries. You only need a power point for the panel and, if you want a loud outdoor siren, a route to an outside wall.

What wiring does a sliding gate motor need?

A mains power cable to the motor position and a separate conduit for accessories like photocells and a flashing light, including a pipe under the driveway if any accessory sits across it.

How much do security conduits add to construction cost?

Usually a small part of the electrical budget, because it is mostly PVC pipe, junction boxes and labour for a day or two. It is far cheaper than cutting and repairing finished walls later.

Prices are NavKar Systems website prices on 27 October 2026, inclusive of GST, and may change.