Our Security System Services in North London

Fixiz installs and commissions the full range of home and commercial security systems across North London. All work is carried out to NSI-standard by experienced engineers. Free site survey — fixed-price quote before any work begins.

Security System Prices in North London

CCTV Installation Costs

System	Supply + Install
4-camera wireless system	From £450
4-camera wired PoE system	From £800
8-camera wireless system	From £750
8-camera wired system	From £1,000
Labour (London)	£75–£100 per camera
Annual maintenance	From £100/year

Burglar Alarm Installation Costs

System	Supply + Install
Bell-only wired alarm	From £500
Bell-only wireless alarm	From £525
Smart alarm (app-controlled)	From £650
Monitored alarm — Grade 2	£680–£1,140
High-spec monitored — Grade 3	£1,000–£2,000+
ARC monitoring subscription	£10–£50/month
Annual maintenance	£50–£200/year

Access Control & Smart Lock Costs

System	Installed Price
Standalone key fob / proximity — per door	£300–£600
Networked RFID system — per door	£600–£1,000
Biometric (fingerprint/facial) — per door	£1,000–£2,500+
3–5 door networked system	£1,500–£3,500
Video doorbell (Ring installed)	~£250
Video doorbell (Google Nest installed)	~£340
Smart lock (Yale average installed)	~£202

What Does a Professional Security Installation Include?

Monitored vs Unmonitored Alarm Systems — Which Do You Need?

Feature	Unmonitored (Bell-Only)	Monitored (ARC)
Activation response	External siren sounds	24/7 ARC contacts keyholders / emergency services
Police response eligibility	No	Yes — if NSI/SSAIB installed
Insurance discount	Unlikely	Often significant
Monthly cost	None	£10–£50/month
UK standard	BS EN 50131 Grade 2E	Grade 2B/C or 3B/C + PD 6662:2017

UK Security Standards: What You Need to Know

BS EN 50131 — Alarm Grades Explained

BS EN 50131 is the primary UK/European standard for intruder alarm systems. It defines Grades 1–4 based on risk level. Grade 2 is standard for most UK homes. Grade 3 is used for higher-risk commercial premises with higher-value assets. A professional engineer will specify the correct grade for your property.

PD 6662:2017 — The UK Installation Scheme

PD 6662:2017 is the UK enabling standard that maps BS EN 50131 Grades to specific police and insurer requirements. Since June 2019, all new monitored alarm installations must comply with PD 6662:2017 and BS 8243:2021 to be eligible for Metropolitan Police response.

NSI & SSAIB — Why Accreditation Matters

NSI Gold (National Security Inspectorate) and SSAIB (Security Systems and Alarms Inspection Board) are the two UKAS-accredited bodies for security installers. Only systems installed by NSI Gold or SSAIB-registered companies qualify for Metropolitan Police response and typically attract the best insurance discounts. All Fixiz security installations are carried out to NSI standard.

When Do You Need a Security System?

Your Situation	Recommended Solution
Basic home deterrent on a budget	Bell-only alarm (Grade 2) from £500
Away frequently, want police response	Monitored alarm — NSI standard, ARC connected
See who’s at the door remotely	Video doorbell (Ring/Nest) from £250
Monitor property while away	CCTV with remote smartphone access
Rental property / HMO	Access control + video intercom
Home office with sensitive equipment	Grade 3 alarm + CCTV + access control
New build or renovation	Integrated: alarm + CCTV + smart locks + doorbell
Insurance requirement	NSI/SSAIB monitored alarm

Areas We Cover in North London

Fixiz security engineers cover all North London boroughs, including:

Frequently Asked Questions — Security Systems North London

How much does a security system installation cost in North London?

A basic bell-only alarm starts from around £500–£525 (supply and install). A four-camera CCTV system starts from approximately £800. Monitored alarms range from £680–£1,140, with ongoing monitoring from £10–£50/month. Access control starts from £300–£600 per door. London prices are generally 20–35% above the national average. Fixiz provides a free fixed-price quotation after a site survey — no obligation.

Do I need an NSI or SSAIB-approved installer in London?

To receive Metropolitan Police response to a monitored alarm, yes — your system must be installed and maintained by an NSI Gold or SSAIB-registered company. NSI/SSAIB certification also typically qualifies your property for reduced insurance premiums. Fixiz carries out all alarm installations to NSI standard.

What is the difference between a monitored and unmonitored alarm?

An unmonitored (bell-only) alarm sounds an external siren but relies on a neighbour noticing — there is no professional response and no monthly fee. A monitored alarm sends alerts to a 24/7 Alarm Receiving Centre (ARC); trained operators contact your keyholders and can dispatch emergency services. Monitored systems are eligible for police response and usually attract insurance discounts.

What is BS EN 50131 and does my alarm need to comply?

BS EN 50131 is the UK/European standard defining alarm Grades 1–4 based on risk. Grade 2 is standard for most UK homes. All monitored systems installed since June 2019 must comply with PD 6662:2017 and BS 8243:2021 to qualify for police response. A professional installer specifies the correct grade for your property’s risk profile.

How many CCTV cameras do I need for my North London home?

A typical terraced or semi-detached North London property is well covered by 4 cameras — front door, rear garden, side access and driveway. Larger detached homes may need 6–8 cameras. Our engineers conduct a free site survey to identify blind spots and recommend optimal placement.

Will a security system reduce my insurance premiums?

In most cases, yes. Many insurers require a professionally installed and maintained alarm to qualify for their best rates. A monitored alarm system eligible for police response typically attracts the largest premium reductions. Always check your policy’s specific requirements — some specify NSI Gold or SSAIB accreditation.

How long does a security system installation take?

A basic burglar alarm for a three-bedroom house takes approximately 4–8 hours. A CCTV system with four cameras takes 4–12 hours depending on cable routing. Access control varies from half a day (single door) to multiple days (multi-site). Fixiz aims to complete most residential installations in a single visit, with same-week availability across North London.

Can I have CCTV cameras covering the street outside my house?

Yes — UK homeowners have the legal right to install CCTV. However, if cameras capture public pavements or neighbouring properties, ICO registration is required at £40/year and a visible notice must be displayed. Our engineers advise on positioning to minimise public coverage where possible.

What smart security options are available in North London?

Options include: video doorbells (Ring from ~£250 installed, Google Nest from ~£340), smart app-controlled alarms (from ~£650), smart locks and keyless entry (from ~£200 hardware), remote-access CCTV with live smartphone viewing, and fully integrated systems combining alarms, CCTV, smart locks and lighting — all controllable from a single app.

Do you install security systems in new builds and renovations in North London?

Yes — and renovation is the ideal time. Cabling can be concealed within walls before plastering, resulting in a cleaner finish at lower cost. We work alongside builders, architects and electricians to deliver a seamless integrated installation. We cover all North London boroughs and can attend site at any construction stage.