Our team is your team
SIA-licensed security officers, key holding and specialist security for construction sites, events, healthcare, education and commercial property — backed by 25+ years of experience and a 24/7 on-call service.
25+
Years of experience
SIA ACS
Approved Contractor since 2020
24/7
On-call service & emergency response
7 offices
Serving the UK & Ireland

About Marvellous
Having attained Approved Contractor status with the Security Industry Authority (SIA) in 2020, Marvellous Security Services grew quickly, supporting some of the world’s and the UK’s largest security providers.
In 2022 we opened a second office in Glasgow to meet increased demand and strengthen our operations nationally. Today we work from offices in Manchester, Glasgow, Nottingham, Belfast and London, with regional offices in Grantham and Widnes.
We are constantly striving to raise standards in the security industry, always looking for new ways to be innovative in a fast-paced sector.
Our services
From manned guarding and gatehouse control to waking watch, CCTV towers and specialist sector security, every service is tailored to your site, your risks and your hours of cover.
SIA-licensed manned guarding for offices, warehouses, retail, void properties and commercial sites — covered by our ACS approval.
Secure key holding with alarm response, so a trained officer attends instead of you — covered by our ACS approval.
Licensed officers, patrols and access control that protect plant, materials and people across the project lifecycle.
Crowd management, access control and full security management plans for festivals, concerts, corporate events and weddings.
Vehicle and visitor screening, pass control and patrols from a professionally staffed gatehouse.
Front-of-house officers who combine a warm welcome with access control and visitor management.
Trained fire marshals on duty 24/7, with regular patrols, inspections and detailed records.
Key holding, alarm response, bed watch and manned guarding from Maybo-trained officers.
Discreet, compassionate protection for care homes, supported living and residential housing.
On-site officers, access control and emergency planning that keep campuses safe without disruption.
Security for collections and historic buildings that protects heritage while keeping sites open to visitors.
Crowd management, access control, asset protection and VIP protection for venues and halls.
Solar-powered mobile CCTV towers with 360° PTZ coverage and remote monitoring, deployed quickly.
Lawful, discreet support with court-ordered evictions, notices and repossessions, plus vacant site security.
Accurate electricity, gas, water and heat readings with clear reporting and billing support.
Commercial, domestic, hotel, deep and end of tenancy cleaning by trained professionals.
Why Marvellous
Every assignment starts with understanding your site, your people and your risks. We then put the right licensed officers, procedures and technology in place — and keep reviewing them as your needs change.
We assess layout, access points and vulnerabilities, then build a plan around your site and operations.
SIA-licensed officers with sector training — including Maybo-trained officers for healthcare settings.
Our on-call service and officers operate around the clock, with rapid response to alarms and incidents.
SIA ACS approved and accredited by bodies including NSI, ISO 9001, CHAS and SafeContractor.
Detailed records of patrols, inspections and incidents, so you always know what has happened on site.
Offices in Manchester, Glasgow, Nottingham, Belfast, London, Grantham and Widnes.
How we work
01
We discuss your site, event or property, the risks you face and the cover you need.
02
We review layout, access points and vulnerabilities to identify where protection matters most.
03
Licensed officers, access control and, where useful, CCTV are deployed to an agreed plan.
04
We keep records, review performance and adapt the plan as your requirements change.
Coverage
Based in Manchester and operating nationally, we provide security services across England, Scotland, Wales, Northern Ireland and Ireland — from London, Birmingham and Liverpool to Glasgow, Edinburgh, Cardiff and Belfast.
Suite 1 Ashfield House, Cheadle, Greater Manchester SK8 1BB
Office 14, Floor 2, Unite 24, 279 Abercromby St, Bridgeton, Glasgow G40 2DD
80 Derby Road, Nottingham NG10 4LB
Arnott House, 3rd Floor, 12–16 Bridge Street, Belfast BT1 1LU
48 Warwick St, Piccadilly Circus, London W1B 5AW
1st & 2nd Floors, 25 St. Catherine’s Road, Grantham NG31 6TT
Tan House Ln, Widnes WA8 0RR
Testimonials
We pride ourselves on security tailored to each client’s needs — but don’t just take our word for it.
“Consistently top-notch security services for our events. The team is courteous, vigilant and responsive, ensuring a safe environment for our guests.”
Event security client
“Choosing Marvellous Security Services for our close protection needs was one of the best decisions we made. Highly skilled officers, discreet and professional. We feel safe knowing they have our back.”
Close protection client
“Excellent gate house security. Professional guards, attentive to detail. Thanks to their presence, we’ve seen a significant reduction in security incidents.”
Gate house security client
Questions & answers
Can’t find what you need? Call us on 0330 056 2268 and speak to the team.
Yes. Our officers hold Security Industry Authority (SIA) licences, and Marvellous Security Services Limited holds SIA Approved Contractor Scheme (ACS) status for Key Holding and Security Guarding, which is audited annually.
Yes. We operate a 24/7 on-call service on 0330 056 2268 (or 07453 530324, 24hrs), and our officers can provide round-the-clock cover for sites, buildings and events.
We provide security across the UK and Ireland from offices in Manchester, Glasgow, Nottingham, Belfast and London, plus regional offices in Grantham and Widnes. See our coverage page for the towns and cities we serve.
Our services include construction security, event security, gate house security, reception and concierge, waking watch and fire marshals, healthcare, care and housing, school and college, museum and listed building security, theatres and halls security, CCTV solar towers, evictions and bailiffs, meter reading and cleaning services.
Complete the quote form or call 0330 056 2268. We will ask about your site, the hours of cover and any specific risks, then prepare a tailored proposal.
Request a quote
Share a few details about your site or event and our team will come back to you with a tailored proposal. For urgent cover, call our 24/7 line.
24/7 security response
Call our on-call team any time, day or night, or send us your requirements and we will prepare a tailored security proposal.