What Mayfair Fire & Security does

Mayfair Fire & Security is a family-owned, UK-based fire safety and electronic security provider headquartered in Selby, North Yorkshire, with a second office in Hessle/Hull opened in April 2022. Founded in 1986 as Mayfair Security and now operating under the legal entity Careline Security Ltd (Company Registration No. 07443823), the group trades as Mayfair Fire & Security, First County Monitoring, and Careline Response. It employs 51–100 people and serves commercial, public-sector, and domestic customers across the UK and Northern Ireland, with the day-to-day business led by Managing Director Neil Addinall and Finance Director Angie Addinall.

The company's core offering is an integrated fire and security portfolio: fire alarm design and installation, intruder alarms, CCTV with analytics (false-alarm filtering, thermal imaging), access control, 24-hour alarm monitoring through an NSI Gold Approved Alarm Receiving Centre (ARC), guarding and keyholding, and fire extinguisher maintenance. Customers can interact with systems via mobile apps for remote management and incident reporting. Through its sister company First2HelpYou, Mayfair extends into lone worker protection and care monitoring, broadening the recurring-revenue base. The proposition rests on a thick accreditation stack — NSI NACOSS Gold, NSI Gold ARC, BAFE SP203-1, ISO 14001:2015, SIA ACS Approved, Cyber Essentials, CHAS, SafeContractor, FIA, and ECA — that gates access to police URN dispatch and to regulated, ESG-weighted tenders.

Mayfair earns revenue through a blended model: one-off system design and installation projects combined with recurring maintenance, monitoring (ARC), guarding, and — via First2HelpYou — lone-worker subscription contracts. Named customers include City of York Council, Leeds City Council, Harrogate Borough Council, The Salvation Army, Connect Housing, Askham Bryan College, ECON, Barker and Stonehouse, Peacock & Brow, and Medical Protection, indicating a balanced mix across local government, housing, charity, education, retail, and professional services rather than dependency on a single logo.

Name

Mayfair Fire & Security

Legal name

Careline Security Ltd

Website

https://mayfairsecurity.co.uk

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

51–100 employees

Short description

Mayfair Fire & Security is a family-owned UK fire and electronic security installer and NSI Gold ARC operator, headquartered in Selby with a second office in Hessle/Hull, serving councils, housing associations, retailers, and commercial customers across the UK and Northern Ireland.

Ownership category

akta.pro rank

Product category

Security and Fire Protection Services

NAICS

Security Systems Services (56162), Security Systems Services (except Locksmiths) (561621), Security Guards and Patrol Services (561612)

SIC

Services-Facilities Support Management Services (8744), Services-Detective, Guard & Armored Car Services (7381)

akta.pro primary industry

Fire Alarm Systems (Design/Install/Service/Monitoring) (BPABAHAA)

akta.pro secondary industries

Fire Alarm Systems (Inspection/Testing/Monitoring/Service) (IMAIAJAC), Commercial & Industrial Alarm Monitoring (BPAKAFAB), System Monitoring & Dispatch Services (Fire/CO Alarm Monitoring) (HSAHAFAF), Fire Alarm & Life Safety Systems Integration (BPAKAGAF)

Keywords

• Fire alarm systems
• CCTV surveillance
• Intruder alarm installation
• Alarm monitoring services
• Access control systems

Headquarters

HQ city

Selby

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Security & Fire System Installation: One-time installation of bespoke security and fire protection systems (intruder alarms, CCTV, access control, fire alarms) designed and engineered to customer specifications through site surveys and proposals. Installation is a one-time revenue event typically accompanied by a service/maintenance contract.
2. 24/7 Alarm Monitoring Services: Recurring monitoring subscription services through the NSI Gold Approved Alarm Receiving Centre, providing remote alarm monitoring, CCTV monitoring with analytics, fire monitoring, lone worker monitoring, and care monitoring on a 24/7 basis. Delivered to residential, commercial, and public sector clients across the UK and Northern Ireland.
3. Maintenance & Servicing Contracts: Ongoing maintenance and servicing of installed systems (fire extinguishers, fire alarms, intruder alarms, CCTV, access control) through scheduled visits, fault-finding, and support. Typically structured as annual service plans providing recurring revenue.
4. Guarding & Keyholding Services: SIA ACS Approved Contractor services including mobile patrols, 24-hour static manned guarding, and lock/unlock services for commercial and residential premises. Revenue generated per service engagement or contract.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels8 records

Core offering

Mayfair Fire & Security designs, installs, and maintains fire alarm, intruder alarm, CCTV, and access control systems for commercial, public sector, and residential customers across the UK and Northern Ireland. Its core differentiator is the in-house NSI Gold Approved Alarm Receiving Centre, which provides 24/7/365 remote alarm and CCTV monitoring, lone worker monitoring, and care monitoring for vulnerable individuals, complemented by SIA-licensed guarding and keyholding services. Recurring maintenance contracts and monitoring subscriptions underpin a services-led model sold through direct field sales following site survey and bespoke proposal.

Product overview

Mayfair Fire & Security is an independently owned security services and fire protection company operating as a trading name of Careline Security Ltd. The company offers a portfolio of interlinked security and fire safety products and services: fire alarm systems (BAFE SP203-1 certified, NSI Gold assessed), intruder alarm systems (with mobile app control and 24-hour monitoring), CCTV systems (with remote monitoring and analytics), access control systems (biometric, facial recognition, keyless entry), 24-hour NSI Gold Alarm Receiving Centre monitoring, guarding and keyholding services (SIA licensed), portable fire extinguisher maintenance (BAFE certified engineers), care monitoring for vulnerable individuals, and lone worker protection delivered through sister company First2HelpYou (BS8484 accredited). The company also operates an environmental management programme under ISO 14001:2015. The core portfolio is anchored by its own NSI Gold Alarm Receiving Centre, which underpins monitoring services across all product lines. The company is headquartered in Selby, North Yorkshire, with an additional office in Hull, serving customers across the UK and Northern Ireland.

Differentiator

Problem solved

Functional benefit

Products and services

• Fire Alarm Systems Professional fire alarm system design, installation, commissioning, and maintenance for commercial and residential properties across the UK, certified to BAFE SP203-1 and NSI Gold standards, and engineered to BS5839 with tailored configurations based on building layout and fire risk assessment.
• CCTV Systems Design, installation, and maintenance of NSI NACOSS Gold approved CCTV systems for homes and businesses, featuring remote monitoring, smart analytic reporting, full audio activation, remote visitor identification, and integration with access control and ARC monitoring.
• Intruder Alarm Systems End-to-end intruder alarm installation, maintenance, and 24-hour monitoring service, ranging from wireless domestic setups to insurance-compliant dual-path commercial systems, with mobile app control for remote arming, disarming, and real-time alarm notifications.
• Access Control Systems Design, installation, and maintenance of intercom and door access control systems including keyless entry, biometric, thermal, and facial recognition solutions, with NSI NACOSS Gold installer status and automation features for visitor management and access monitoring.
• 24-Hour Remote Alarm Monitoring NSI Gold Accredited Alarm Receiving Centre providing 24/7/365 monitoring of intruder alarms, fire alarms, CCTV, personal attack, and lone worker signals to residential, commercial, and public body clients across the UK and Northern Ireland, incorporating false alarm filtering and thermal imaging technologies.
• Guarding and Keyholding Services SIA ACS Approved Contractor service delivering bespoke keyholding and alarm response, mobile patrols, 24-hour static manned guarding by SIA-licensed officers, and lock/unlock services to commercial and residential premises.
• Portable Fire Extinguisher Maintenance Annual servicing and maintenance of portable fire extinguishers delivered by BAFE certified engineers accredited to BS5306-3, including inspection, refill or replacement, and annual service plans to ensure compliance with fire extinguisher regulations.
• Care Monitoring 24-hour care monitoring solutions supporting independent living and safeguarding of vulnerable individuals using devices including personal pendants, at-home alarm units, activity monitors, smoke/heat/flood/gas/temperature monitors, bed and chair sensors, and medication dispensers, with remote monitoring for carers and family members.
• Lone Worker Protection BS8484 accredited lone worker products and services delivered through sister company First2HelpYou, providing fully managed, 24/7/365 monitored lone worker protection compliant with British Standard BS8484, with alerts handled by Mayfair Fire & Security's NSI Gold Alarm Receiving Centre.

Quantifiable outcome

• Solar system generates over 160kW per day, saving 27 tonnes CO2 annually, equivalent to planting 140 trees per year
• +2 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Two partnerships are on record, tiered core.

• Thinking Space SystemscoreImplementation/ SI/ Consulting Partner · 1 January 2022Thinking Space Systems, a global provider of high-quality technical furniture for control rooms, partnered with Mayfair Fire & Security to carry out a complete refurbishment of the company's CCTV control room. The project delivered a high-specification suite of technical furniture with height-adjustable workstations, a large curved monitor wall, and modern design — a key operational infrastructure upgrade for the NSI Gold Approved Alarm Receiving Centre.
• First2HelpYou (Sister Company)coreStrategic or Co-development PartnerFirst2HelpYou is a sister company of Mayfair Fire & Security and is one of the UK's leading suppliers of BS8484 accredited lone worker products and services. Mayfair Fire & Security's NSI Gold Alarm Receiving Centre monitors all First2HelpYou alerts 24/7/365, meeting BS5979 and BS8484 requirements. The relationship is co-managed within the Careline Security Ltd group of companies.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• ADT UK: Largest UK commercial and residential monitored security provider, offering intruder, fire, and CCTV systems with national ARC infrastructure. Comparable product set and monitoring model to Mayfair but operates at national scale with significantly broader customer reach.
• Mitie Security: Major UK facilities management and security services provider with a dedicated fire & security systems division. Overlaps with Mayfair on intruder alarms, CCTV, access control, and guarding, but as part of a much broader FM portfolio.
• Marlowe plc (Fire & Security division): AIM-listed consolidator that has acquired multiple UK fire and security integrators (e.g., Titan, Zicam, Ornate). Competes with Mayfair in the same commercial fire/security installation and maintenance market, with greater capital and roll-up firepower.

Regional players

• Banham: London-focused independent security and locksmith provider offering intruder alarms, CCTV, access control, and keyholding. Comparable product set to Mayfair but geographically concentrated in London/South East rather than Yorkshire/National.

Direct peers

• Sector Security Services: UK security systems installer and guarding provider serving commercial and public-sector clients. Comparable to Mayfair's mid-sized regional integrator profile with overlapping fire, intruder, CCTV, and monitoring offerings.
• Secom plc: UK independent security and fire systems integrator providing installation, monitoring, and guarding services. Closest direct comparable to Mayfair on independent-ownership positioning, full-stack fire/security/monitoring portfolio, and NSI Gold-accredited ARC operations.
• Chubb Fire & Security: UK fire and security systems integrator offering design, installation, monitoring, and maintenance for commercial and public-sector customers. Directly comparable to Mayfair's core fire alarm, intruder, CCTV, and ARC/monitoring offering, but at substantially larger national scale.
• Kings Security: UK independent security systems integrator and keyholding/guarding provider with NSI-accredited ARC. Closely comparable mid-sized peer to Mayfair on fire, intruder, CCTV, monitoring, and guarding services.
• EMCS Group: UK commercial fire and security systems installer and maintainer with NSI/BAFE accreditations, serving public-sector and commercial customers. Comparable independent, accredited mid-market peer to Mayfair's fire alarm, intruder, and CCTV installation business.

Others

• BT Redcare (signalling partner): Supplier of dual-path alarm signalling technology that connects Mayfair's customer sites to its NSI Gold ARC. Adjacent ecosystem enabler rather than direct competitor, but indicative of the category peers in UK monitored fire/security.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/mayfairsecurity
• Facebookfacebook.com/selbymayfair
• LinkedInlinkedin.com/company/mayfair-security-group_2
• Instagraminstagram.com/mayfairfireandsecurity

Compliance14 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mayfair Fire & Security