Several fire and security companies can be considered for estates across Yorkshire, Lincolnshire and the Humber, including SPS Technical, Bellmac, Delta Security Systems, Flextec, Mayfair Fire & Security, Scope Fire & Security and Shield Security Services (Yorkshire). Their published coverage, certifications and service models differ. A company that is suitable for a Hull office may not offer the same arrangement for an estate extending to Leeds, Lincoln and North Yorkshire.
The useful comparison is not simply who installs alarms. It is who can support your particular buildings, maintain the systems already in place, provide usable records and agree clear responsibilities when something goes wrong.
Published by SPS Technical. This is an SPS-authored market overview, not an independent ranking or an exhaustive directory. Sources were checked on 2 October 2026. Company-published statements are identified below; register and certificate checks are noted where available. Confirm current approval, scope and site coverage before appointing any provider, including SPS.
Fire and security companies to consider
SPS Technical
SPS Technical is the fire and security systems division of SPS Security Ltd. Its regional offer covers commercial fire alarms, CCTV, intruder alarms and access control, including installation, planned maintenance, system takeovers and monitoring options across Yorkshire, Lincolnshire and the Humber.
The SPS accreditation page identifies BAFE SP203-1 for fire alarm design, installation, commissioning and maintenance, certified through SSAIB, alongside SSAIB certification for intruder alarms, CCTV and access control. It also lists ISO 9001:2015, ISO 14001:2015, CHAS and SafeContractor. The named certificate holder is SPS Security Ltd; the technical services are delivered through its SPS Technical division.
For multi-site estates, the proposition is a regional maintenance relationship across several system types, with existing-system takeovers where suitable. Monitoring, keyholding and physical response can be coordinated with SPS Security where contracted. A maintained system is not automatically a monitored system: these services should be specified separately in the proposal.
Bellmac Fire & Security
Bellmac describes its core territory as the North East and North Yorkshire, and names locations including Harrogate, York and Doncaster. It offers fire systems, intruder alarms, CCTV, access control and maintenance, with customer-assigned engineers and monitoring through alarm-receiving partners.
Published credentials: SSAIB certification for CCTV, intruder alarms and access control; BAFE SP203-1 for fire system design, installation, commissioning and maintenance. Its FIA and Gate Safe affiliations are memberships, rather than substitutes for those system certifications.
Bellmac is worth considering for portfolios with a northern Yorkshire component. Obtain specific confirmation for Humber and Lincolnshire sites rather than assuming its stated core coverage extends to every building.
Delta Security Systems Ltd
Delta Security Systems Ltd is based in the Hull/Hessle area and publishes coverage across East Yorkshire, North Lincolnshire and more widely in the UK. Its services include CCTV, intruder alarms, access control, fire and life-safety systems, structured cabling, maintenance and upgrades.
Published credentials: NSI Silver and CHAS. Its website also refers to IPAF, PASMA and DBS checking; these relate to training or personnel screening and should not be presented as equivalent to independent certification of electronic security or fire alarm work.
Delta may be relevant where an estate combines electronic security, life-safety equipment and data-network requirements. Request its current NSI certificate and approved system scope, and ask separately for the evidence covering any proposed fire alarm work.
Flextec Limited
Flextec is a Hull-based commercial installer whose published service area includes East Yorkshire, Leeds, Scunthorpe, Grimsby and Lincoln. Its offer covers CCTV, intruder alarms, access control, intercoms, fire alarms and emergency lighting, with an emphasis on commercial and property-management customers.
Published accreditation position: at the time of review, Flextec's homepage described CHAS certification as in progress and BAFE SP203-1 as part of its 2026 roadmap. It also described manufacturer accreditations across the team. We did not establish a current NSI or SSAIB approval from the sources checked.
This is not a judgment on individual installations. It means an application, a future accreditation plan and manufacturer training should not be listed as a current third-party company approval. Buyers with specified certification requirements should request up-to-date evidence before shortlisting.
Mayfair Fire & Security
Mayfair Fire & Security publishes offices in Selby and Hull. Its services include fire alarms, CCTV, intruder alarms, access control, remote monitoring, guarding and keyholding. The website identifies Mayfair as a trading name of Careline Security Ltd.
Register evidence: the NSI company-finder entry lists NACOSS Gold, Fire Detection & Alarm Systems SP203-1 Fire Gold and EMS Gold. It identifies approved fire detection, intruder alarm, CCTV and access control activities. Mayfair's own fire alarm page also describes BAFE SP203-1 across design, installation, commissioning and maintenance.
Its combined technical and operational offer makes it relevant to a regional shortlist. Ask for the engineering and response arrangements for each Lincolnshire and Yorkshire postcode, along with the legal contracting entity and applicable certificate scope.
Scope Fire & Security
Scope is based in Burnley and publishes coverage across the North of England, including Leeds and West Yorkshire. Its services include fire alarms, CCTV, intruder alarms, access control, maintenance, monitoring and system takeovers.
Published credentials: its accreditation page lists BAFE registration, with SP203-1 identified on its service pages, and NSI Gold. It also lists Constructionline Gold, Cyber Essentials and SafeContractor. These supplementary credentials should be distinguished from fire and security system certification.
Scope is a potential option where the portfolio includes West Yorkshire or extends towards the North West. The material reviewed does not establish comprehensive Humber and Lincolnshire engineering coverage, so obtain a written site-by-site commitment rather than assuming it.
Shield Security Services (Yorkshire) Ltd
Shield Security Services (Yorkshire) Ltd is the Hull-based Shield business relevant to this comparison. Its electronic security and operational security approvals need to be considered separately.
Certificate evidence: Shield's published NSI NACOSS Gold certificate, approval number 50042, covers design, installation and maintenance of intruder alarms, CCTV and access control, including ISO 9001:2015. The certificate states an expiry date of 31 December 2026. The SIA approved-contractor register separately lists Security Guarding and Key Holding, with approval expiring on 31 December 2027.
Shield is relevant where the requirement combines electronic security with guarding or keyholding. The electronic security certificate reviewed does not establish BAFE SP203-1 fire alarm certification. For a combined fire-and-security contract, clarify the fire-service provider and certification arrangements rather than treating guarding approval as evidence of fire-system competence.
Compare the scope of approval, not just the logos
BAFE explains that SP203-1 is modular: design, installation, commissioning and maintenance are separately identifiable activities. Check that the organisation is registered for the work you are buying. A fire alarm approval should not be assumed to cover fire risk assessments, extinguishers or emergency lighting; those have distinct schemes and scopes.
For electronic security, check the current SSAIB or NSI listing and the specific systems included. NSI distinguishes NACOSS Gold from Systems Silver; both provide routes to third-party systems approval, while Gold includes ISO 9001 quality-management requirements. A certificate for one discipline is not evidence of approval for every service on a website.
Keep management-system certificates, health-and-safety assessments, trade memberships, manufacturer training and personnel screening in separate headings in your supplier comparison. Each may be useful evidence, but counting badges is not a reliable substitute for checking what they mean.
What should a multi-site maintenance proposal include?
Give each bidder the same estate information and ask for a comparable response. A useful planned maintenance proposal should make the following points easy to understand:
- Estate and asset coverage: identify every building, postcode, system type and known manufacturer, including inherited equipment and access restrictions.
- The planned programme: explain the proposed visits, the basis for the schedule, who arranges access and how missed or incomplete visits will be recovered.
- Records and follow-up: show example service reports, defect priorities, quotations, authorisation steps and evidence that agreed remedial work has been closed.
- Responsibility and support: name the account contact, explain out-of-hours arrangements and distinguish telephone support, engineer attendance and security response.
- Comparable pricing: separate routine maintenance, monitoring, call-outs, labour, travel, parts, specialist access equipment and chargeable remedials. State exclusions and renewal terms.
A single commercial agreement can coordinate several disciplines without imposing an identical maintenance schedule on every system. Ask the contractor to explain the applicable requirements for your equipment and buildings rather than applying a generic timetable copied from a comparison article.
Monitoring and response: ask who actually does what
Do not treat “24/7 support” as a complete service description. Ask who receives an alarm, who contacts the client, who can dispatch an engineer, and who can attend as a keyholder or security responder. Establish whether these functions are delivered by the contractor, another group business or a named monitoring or response partner.
Ask for written targets for acknowledgement, attendance and restoration, with the conditions attached. These are different measures. Avoid assuming that a regional office or a 24-hour telephone number guarantees a particular arrival time at every site.
SPS provides monitoring options alongside separately specified guarding, mobile response and keyholding through SPS Security. The agreed arrangement should identify the premises and systems included. Monitoring arrangements do not replace the site's fire-emergency procedures, and a comparison guide should not imply guaranteed police or fire-service attendance.
Taking over systems installed by another contractor
A change of maintenance provider does not necessarily require every system to be replaced. Equally, no provider should promise to accept all inherited equipment before understanding its condition and support requirements.
For a system takeover, ask the incoming contractor to review the equipment list, available documentation, authorised access, software or licence dependencies, outstanding defects and existing monitoring arrangements. The proposal should separate equipment that can remain in service from justified remedial work or replacement recommendations.
Agree the transition date, responsibility for open faults and the handover of service records. Any changes to monitoring should have a documented transition plan. Taking on maintenance is not, by itself, a retrospective certification that every aspect of an inherited installation meets current requirements.
Choosing the right regional partner
For a mixed estate, start with a postcode schedule rather than a broad statement such as “covers Yorkshire”. Ask the shortlisted firms to confirm support for Hull, Grimsby, Scunthorpe, Lincoln, Doncaster, Sheffield, Leeds and any other actual locations in your portfolio.
Request references for comparable buildings and portfolios, not simply a large customer count. A sample report, a clear mobilisation plan and a realistic service agreement will usually help you compare the proposed service more effectively than an unsupported “fastest response” claim.
To discuss consolidating your fire and security maintenance, request a multi-site portfolio review from SPS Technical. Share your site list, current service contracts, renewal dates and known system details. We can then discuss maintenance, takeovers and monitoring requirements against the buildings you actually operate.
Frequently asked questions
Can one contractor maintain fire alarms, CCTV, intruder alarms and access control?
A contractor may offer a combined agreement, but check the scope for each discipline, the equipment it can support and any specialist partners involved. One invoice should not obscure who is responsible for each part of the service.
Does a Hull office prove that a company can support every site in Lincolnshire or Yorkshire?
No. Ask for postcode-level coverage, out-of-hours arrangements and written attendance targets. A published service area is a starting point for enquiry, not a substitute for a commitment covering your estate.
Does SIA approval also cover fire alarm installation?
No. The SIA approved-contractor entry identifies the approved security activities. Fire alarm competence and third-party certification need to be checked separately; for BAFE SP203-1, verify the relevant modules.
Does NSI Silver mean the same thing as NSI Gold?
No. NSI offers both Systems Silver and NACOSS Gold for electronic security businesses. Gold includes ISO 9001 quality-management requirements. Check the actual approved system scope in either case rather than assuming the level covers every discipline.
Can we move maintenance without replacing all our existing systems?
Possibly. Ask for a takeover assessment before committing. The answer depends on equipment condition, authorised access, support and compatibility, with any necessary remedial work and monitoring transition agreed in advance.