Annual Contracts · Reactive Support · Third-Party Systems Welcome
Security System Maintenance in London
Slam Systems provides ongoing maintenance and servicing contracts for CCTV, intruder alarm, and access control systems across London, Middlesex, Surrey, Kent, and Buckinghamshire. Regular preventive maintenance keeps your security systems performing reliably, ensures compliance with manufacturer warranties and insurance requirements, and means problems are caught before they become failures.
We maintain systems we have installed and systems installed by other companies, our engineers are experienced across a wide range of manufacturers, so you are never locked in to your original installer. All maintenance is carried out by our own in-house engineers, with no subcontractors used.
Annual Service Contracts
Our annual maintenance contracts include scheduled service visits, system health checks across all components, firmware updates, and testing, ensuring everything is working correctly throughout the year and meeting insurance and warranty requirements.
CCTV Camera Servicing
Camera cleaning, lens adjustment, recording verification, and storage health checks. We confirm cameras are capturing clear footage, recordings are being retained to the required duration, and remote access is functioning correctly.
Alarm System Servicing
Full walk-test of all detectors, door and window contacts, and sirens. Battery testing and replacement, panel inspection, and confirmation of monitoring centre connectivity, maintaining compliance with BS EN 50131 standards.
Priority Reactive Support
Contract clients receive priority response times and discounted call-out rates when issues arise between scheduled visits. Many faults on IP-based systems can be diagnosed and resolved remotely, avoiding unnecessary engineer visits and delays.
What Our Security Maintenance Contracts Cover
- 01
CCTV Maintenance
Scheduled camera cleaning and lens adjustment to maintain image quality. Recording system health checks, verifying all cameras are recording, storage is sufficient, and footage retention meets your required period. Remote access verification and NVR/DVR firmware updates. We also check that cameras remain correctly positioned and GDPR signage is in place.
- 02
Intruder Alarm Servicing
Full walk-test of all motion detectors, door contacts, window contacts, shock sensors, and internal and external sirens. Panel inspection, communication path testing (GSM/Ethernet), battery replacement, and monitoring centre signalling confirmation. Annual service documentation provided for insurance compliance.
- 03
Access Control Servicing
Door reader cleaning and functional testing, electric lock and door closer inspection, credential audit, software and firmware updates, and access log review. We also carry out user database audits on request, removing old or inactive credentials to maintain security hygiene on your access control system.
We Maintain Systems Installed by Other Companies
You do not need to have had your system installed by Slam Systems to benefit from our maintenance service. Our engineers are experienced across a wide range of manufacturers and platforms, so if you are unhappy with your current maintenance provider or your original installer has ceased trading, we can step in.
Brands we regularly service and support include:
- Hanwha (Samsung)
- Axis Communications
- Hikvision
- Dahua
- Paxton
- Ajax Systems
- Bosch Security
- Texecom
- Honeywell / Galaxy
Contact us for a free assessment of your existing security systems and a maintenance quote tailored to your site.
London Areas We Cover for Security Maintenance
We carry out security maintenance and servicing across all London boroughs and the surrounding counties. Our engineers cover Central London, the City, Canary Wharf, South London, East London, West London, and North London, as well as Surrey, Kent, Buckinghamshire, and Middlesex.
Areas served include: Westminster, Kensington & Chelsea, Hammersmith & Fulham, Wandsworth, Lambeth, Southwark, Greenwich, Tower Hamlets, Hackney, Islington, Camden, Haringey, Barnet, Ealing, Hounslow, Richmond, Kingston upon Thames, Merton, Sutton, Croydon, Bromley, Bexley, Havering, Redbridge, Waltham Forest, Enfield, Harrow, Hillingdon, Brent, Newham, and Lewisham.
Security Maintenance FAQs
How often should a commercial CCTV system be serviced?
Most commercial CCTV systems should be serviced annually as a minimum. An annual visit covers camera cleaning, recording verification, storage health checks, and firmware updates, ensuring the system is performing correctly and footage is being retained as required.
What does a security maintenance contract include?
A Slam Systems contract typically includes: scheduled annual service visits, system health checks across all components, firmware updates, battery testing and replacement where applicable, and priority access to reactive support between visits at discounted call-out rates.
Can you maintain a security system installed by another company?
Yes. We regularly take over maintenance of systems installed by others. Our engineers are experienced across Hanwha, Axis, Hikvision, Dahua, Paxton, Ajax, Bosch, and more, so you are not locked in to your original installer. We carry out a free assessment before providing a maintenance quote.
How quickly can you respond to a fault in London?
Contract clients receive priority response. For urgent faults, our team aims to attend within 24–48 hours. Many IP-based system issues can be diagnosed and resolved remotely, providing even faster resolution without waiting for an engineer visit.
Is a maintenance contract required for my system warranty or insurance?
Some manufacturers require annual professional servicing to maintain warranty validity. Many commercial insurance policies also specify annual servicing by a competent contractor for intruder alarm and CCTV systems to remain compliant. We recommend checking your policy wording and manufacturer documentation.
What is the difference between a scheduled service and reactive support?
A scheduled service is a planned annual visit where our engineers systematically check all components, catching issues before they become failures. Reactive support is an unplanned response when a fault occurs between visits. Our contracts include both.