Home Security Tips for UK Homeowners¶

Q: Does leaving lights on when away deter burglars?

Yes, but only if they appear natural. Use timer switches that match your normal lighting patterns and consider combining with a radio or TV simulator for multi-room authenticity.

Q: Are fake security cameras effective?

Dummy cameras have mixed effectiveness. A dummy alarm box with a working LED is more convincing than a generic fake camera. Experienced burglars can often distinguish real from fake.

Q: What do burglars look for when choosing a target?

Burglars consistently look for cover (high hedges, obscured entry points), accessibility (unlocked doors, open windows), absence signs (uncollected post, no car), and lack of visible security (no alarm box, no cameras).

Q: How can I security-proof my home without spending much money?

Focus on: lock doors and windows consistently, install a visible alarm box (£15-£40), use timer switches for lights (£10-£30), fit window locks (£5-£20 per window), and trim front hedges. These five measures cost under £150 total.

The most effective home security combines visible deterrents, physical barriers, detection technology, and good habits — in that order of priority. This guide presents a complete security strategy organised by cost and impact, from free habits to professional-grade installations, all grounded in UK crime statistics and security research.

The Security Stack Principle

Research using Crime Survey for England and Wales data by Professor Andromachi Tseloni found that homes with layered security — window locks, door deadlocks, timer lights, and external sensor lighting — achieve 49 times greater protection against burglary than homes with no security measures (ADR UK, 2020). A single measure, however expensive, provides much less protection than multiple complementary measures.

Security Measures by Cost and Impact¶

Measure	Cost	Difficulty	Impact	Deterrent Value	Insurance Discount
Lock doors and windows (habit)	£0	None	Moderate	Moderate	None
Visible alarm box	£15-£40	Easy	High	High	Up to 10%
Timer switches for lights	£10-£30	Easy	Moderate	Moderate	None
PIR security lighting	£25-£80	Medium	High	High	Up to 5%
Window locks	£5-£20 per window	Easy	High	Moderate	Up to 10%
Door deadlocks	£30-£80 per door	Medium	High	High	Up to 15%
Smart doorbell camera	£60-£200	Easy	Moderate	High	Up to 10%
Burglar alarm (monitored)	£300-£1,500	Professional	High	Very High	5-20%
CCTV system	£200-£2,000	Medium/Pro	High	Very High	5-15%
Smart lock (TS 007 3-star)	£150-£400	Medium	High	High	Up to 10%
Property marking (SelectaDNA)	£25-£50	Easy	Moderate	Moderate	Up to 5%

Tier 1: Free and Low-Cost Measures (Under £50)¶

These are the foundational habits and cheap upgrades that deliver the greatest return — and most are things households can implement this weekend.

Basic Habits¶

Lock everything, every time. The most common security failing identified by police is unlocked doors and windows. The ONS reports that over 30% of burglaries involve no forced entry — the burglar simply walked through an unlocked door or climbed through an unlocked window. Make locking up a habit, even when you are home.
Leave keys out of sight. Do not keep keys on hall tables, hooks near the letterbox, or in visible kitchen drawers. Use a key hook inside a cupboard or drawer. Letterbox fishing — using a tool through the letterbox to hook keys — is a documented method.
Never leave ladders or tools outside. Burglars use garden tools, ladders, and step stools to access upper-floor windows. Store them in a locked shed or garage.
Trim front hedges. High hedges and overgrown shrubs provide cover for burglars. Keep front garden hedges below 1 metre and side/rear hedges maintained to eliminate hiding spots near windows and doors.
Join Neighbourhood Watch. Properties in areas with active Neighbourhood Watch schemes report lower burglary rates. The National Neighbourhood Watch Association provides resources for setting up or joining a local scheme.

Cost-Effective Upgrades¶

Timer switches (£10-£30) — Plug lamps into timer switches set to come on at dusk and turn off at your usual bedtime. More advanced Wi-Fi smart plugs (£15-£25 each) allow randomisation so your lights do not follow the same pattern every evening.

Fake TV simulator (£10-£20) — A small LED device that emits a realistic blue television flicker when placed in an upstairs window. Effective as a visible-during-dark-hours deterrent.

Visible alarm box (£15-£40) — Even without a connected alarm system, fitting a realistic alarm box to your front elevation is one of the highest-impact low-cost measures. Genuine Yale, Texecom, or Pyronix dummy boxes with working LED indicators are available and indistinguishable from real units from street level.

SelectaDNA property marking kit (£25-£50) — A forensic marking solution that uniquely identifies your property. Includes warning stickers for doors and windows. Burglars avoid marked property because it is traceable to specific locations. Police can scan marked items and return them to owners.

Tier 2: Intermediate Security (Under £500)¶

Window and Door Locks¶

Key-operated window locks (£5-£20 per window) should be fitted to all ground-floor accessible windows and any first-floor windows accessible from a flat roof, extension roof, or fire escape. For sash windows, consider mortise sash locks or sash jammers.

Five-lever mortise deadlocks (BS 3621) for wooden doors cost £30-£80 per door. The British Standard 3621 requires a minimum of 5 levers plus a deadlocking mechanism that prevents the bolt being retracted without the key. For uPVC doors, check that your multipoint locking system is functional — handles should lift fully and all locking points should engage.

Door chains and door viewers (£5-£20) — Fit a door chain or limiter to your front door and a wide-angle door viewer (peephole) at a height suitable for all household members.

Security Lighting¶

PIR-activated security lights (£25-£80) are one of the most effective deterrents. Install at front and rear access points, positioned to illuminate the approach path without shining into neighbours' windows or blinding your own CCTV cameras.

Installation tips: - Mount at 2.5-3 metres above ground level - Angle sensor downward to avoid false triggers from passing cars - Set timer to 1-3 minutes (longer = less deterrent effect as neighbours tune out) - Consider LED units with 1200-2000 lumen output for adequate coverage

Smart Doorbells¶

Video doorbell cameras (£60-£200) offer dual function — visitor greeting and security monitoring. Key features to look for:

1080p minimum resolution with infrared night vision
Motion detection zones — configurable to avoid recording beyond your property
Cloud recording — check subscription costs (typically £3-£10/month for continuous recording)
Two-way audio — speak to visitors or delivery drivers remotely
Package detection — some models alert specifically when a package is delivered or removed

Tier 3: Advanced Security (£500-£2,000+)¶

Burglar Alarm Installation¶

A properly installed alarm system with external sounder is the most recognised security measure on UK properties. For best results:

Choose at least Grade 2 (BS EN 50131) equipment for insurance compliance
Install the external sounder high on the front elevation (out of reach but visible)
Combine with PIR detectors, door contacts, and a control panel with app connectivity
Consider ARC monitoring for police response (see the Alarm Systems guide for full details)

CCTV Installation¶

CCTV provides evidence as well as deterrence. Modern systems with 1080p or 4K resolution, motion detection alerts, and cloud storage are increasingly affordable. See the CCTV guide for complete coverage.

Smart Lock Upgrade¶

Smart locks with TS 007 3-star cylinder ratings combine convenience with high physical security. Keyless entry eliminates the risk of key theft or loss, and temporary codes provide controlled access for guests and service providers. See the Smart Locks guide for detailed recommendations.

Seasonal Security Checklist¶

Spring (March-May)¶

Check all exterior lights and replace bulbs before lighter evenings end
Service burglar alarm — test battery backup, clean PIR sensors, replace batteries in wireless sensors
Inspect fences and gates for winter damage — repair weak spots before the garden becomes accessible
Trim hedges and shrubs around doors and windows

Summer (June-August)¶

Secure garden equipment, barbecues, and outdoor furniture when not in use
Check shed and garage locks — these are common summer burglary targets
Remember that open windows and patio doors are the summer's primary vulnerability — fit window restrictors
If going on holiday, use timer switches and ask a neighbour to collect post

Autumn (September-November)¶

Adjust timer switches for earlier darkness
Test all outdoor security lights as the nights draw in
Check that Halloween decorations do not block door viewers or sensor fields
Review home insurance policy — ensure specified security measures are in place

Winter (December-February)¶

Burglary rates peak in December (dark evenings, presents visible in windows)
Keep curtains closed in rooms containing Christmas presents
Never leave empty packaging for expensive items visible outside
Check that snow and ice have not blocked sensor fields or camera views
Test battery backup on all security devices during cold weather

Home Security and Insurance¶

UK home insurance policies typically offer discounts for fitted security measures. Average discounts reported by major UK insurers:

Burglar alarm (fitted and maintained): 5-20%
Monitored alarm (ARC): 10-25%
CCTV system: 5-15%
Smart lock (TS 007 rated): 5-10%
Neighbourhood Watch member: 2-5%
Multiple measures combined: up to 30% total

Important: Notify your insurer when you install security measures. Discounts are only applied when you declare them. Some insurers specify minimum standards (e.g., "alarm must be Grade 2 and serviced annually"). Failure to comply could invalidate your policy in the event of a claim.

Security Tips FAQ¶

Does leaving lights on when away deter burglars?: Yes, but only if they appear natural. A single light left on 24/7 is a more reliable indicator that the house is empty than darkness. Use timer switches that match your normal lighting patterns — and consider combining with a radio or TV simulator for multi-room authenticity.
Are fake security cameras effective?: Dummy cameras have mixed effectiveness. Research on burglary target selection shows that visible security devices do act as deterrents, but experienced burglars can often distinguish real from fake by the absence of blinking LEDs, cables, or recording activity. A dummy alarm box with a working LED (which costs only £15-£30 more than a completely empty box) is more convincing than a generic fake camera.
What do burglars look for when choosing a target?: Research involving interviews with convicted burglars (including the work of Cromwell and Olson, 2004, and Wright and Decker) consistently identifies the same cues: cover (high hedges, side alleys, obscured entry points), accessibility (unlocked doors, open windows, no visible locks), absence signs (uncollected post, no car on the drive, lights never changing), and lack of visible security (no alarm box, no cameras, no security lighting).
How can I security-proof my home without spending much money?: Focus on measures in order: (1) lock all doors and windows consistently, (2) install a visible alarm box, (3) use timer switches for lights, (4) fit window locks on ground-floor windows, (5) trim front garden hedges. These five measures cost under £150 total and address the primary cues burglars use for target selection.
What is the best home security system in the UK?: There is no single "best" system — the right system depends on your property type, risk level, budget, and whether you want professional monitoring. For most UK homes, the optimal combination is: a Grade 2 smart alarm with PIR detectors and door contacts (£200-£400), a video doorbell (£100-£150), window locks on all accessible windows (£50-£150), PIR security lighting at front and rear (£50-£100), and a TS 007 3-star smart lock on the front door (£150-£250).

Last updated: May 2026. Security advice is based on ONS crime statistics, peer-reviewed research, British Standards, and UK insurance industry practices. Always verify current police policy and insurance requirements with your local force and provider.