Expert Maintenance for Home Security Systems
Your Trusted, NSI Gold-Certified Residential Security Specialists.
Looking for an accredited company to maintain or take over your security system? Chris Lewis is your local, accredited expert partner for security system maintenance and takeovers — delivering fast, reliable service, professional monitoring and trusted guidance.
- 4-24 Hour Engineer Response
- 24/7 Remote Support
- 90%+ First-Time Fix Rate
Expert Maintenance for Home Security Systems
Your Trusted, NSI Gold-Certified Residential Security Specialists.
Looking for an accredited company to maintain or take over your security system? Chris Lewis is your local, accredited expert partner for security system maintenance and takeovers — delivering fast, reliable service, professional monitoring and trusted guidance.
- 4-24 Hour Engineer Response
- 24/7 Remote Support
- 90%+ First-Time Fix Rate
Professional Security Maintenance & System Takeovers
Professional maintenance of intruder alarms and CCTV protects performance, compliance and reliability long after installation. Whether we originally installed your system or are taking over from another provider, we deliver structured servicing, fault rectification and accredited maintenance that keeps your protection fully operational and insurer-compliant.
With over 30 years’ experience across listed buildings, royal residences and high-value homes, our engineers provide fast, dependable support — ensuring your security systems remain expertly maintained and professionally monitored.
Book a Maintenance VisitOur Residential Security System Maintenance Services
Comprehensive maintenance contracts covering every aspect of your security systems — from annual inspections to emergency repairs and compliance documentation.
Common Issues We Resolve
From inherited systems no longer supported to nuisance false alarms and detector failures — we restore reliable security protection.
System Takeovers &
Expert Support
Previous installer no longer trading or providing inadequate support? We assess system condition, resolve existing issues, and assume ongoing responsibility.
False Alarm
Problems
Excessive nuisance alarms undermine system confidence. We perform systematic investigations to identify root causes and restore reliable protection.
CCTV &
Recording Issues
Cameras offline, degraded image quality, recording failures, or remote viewing not working — we diagnose rapidly, correct faults and ensure continuous coverage.
System
Upgrades
Strategic upgrade planning replaces obsolete equipment before failures occur, avoiding emergency situations where failed equipment has no available replacement.
Security Systems & Brands We Service
Can’t see your brand? We can service security systems from all major manufacturers – regardless of whether we installed it originally.
Our Awards & Accreditations
Industry-leading certifications that demonstrate our commitment to excellence, technical expertise, and uncompromising standards of service.
NSI Gold
Certified
CEDIA Premium Member
Control4 Pinnacle partner
Lutron Platinum Partner
Our Certifications & Guarantees
Industry-leading certifications and performance guarantees demonstrating commitment to security and reliable service.
Security System Upgrades & Modernisation
reliability, and sharpen detection accuracy with our practical system upgrades
– keeping your property secure, responsive, and ready for whatever comes next.
CONTACT US
Book a Maintenance Visit
Looking to start a security maintenance plan? Complete the form below to schedule a call with one of our residential security experts.
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Latest Insights
Expert information on security technology, false alarm prevention, CCTV maintenance, and residential security protection.
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CLG Recognised as Exclusive Control4 Pinnacle Dealer
CLG recognised as exclusive Control4 Pinnacle dealer
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Why you need to upgrade your CCTV cameras
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Latest Insights
Expert opinions on the latest in smart home technology, design integration and luxury property considerations.
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CLG recognised as exclusive Control4 Pinnacle dealer
CLG recognised as exclusive Control4 Pinnacle dealer
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Why you need to upgrade your CCTV cameras
Frequently Asked Questions
Can you maintain security systems you didn't install?
Yes. We regularly takeover support for security systems installed by other companies — whether original installer no longer trades, support quality declined, or you inherited systems. Our takeover process includes comprehensive system assessment, equipment inventory, configuration documentation, issue resolution. We service all major security platforms. No penalty for choosing us as ongoing provider.
How do you stop false security alarms?
False alarms undermine confidence and can result in police charging for excessive callouts. We systematically investigate causes — faulty PIR sensors, inadequate pet immunity calibration, environmental factors, detector age degradation, improper positioning. Solutions include sensor replacement, recalibration, repositioning, sensitivity adjustment, zone reconfiguration. Reliable intruder detection without nuisance activations.
What's included in annual security system servicing?
Annual servicing includes comprehensive inspection and testing of all equipment. Burglar alarms: control panel health check, zone testing, sensor verification, battery capacity testing, sounder operation, monitoring connection verification. CCTV: camera lens cleaning, recording equipment inspection, storage assessment, network testing, remote viewing verification. Gates: safety feature testing, obstacle detection calibration, motor inspection, lubrication, compliance documentation. Service typically takes 2-4 hours. Annual servicing maintains NSI Gold certification satisfying insurance requirements.
How quickly do you respond to security system faults?
Security failures leave property vulnerable — rapid response is essential. Premium contracts guarantee 4-hour emergency response, Preferred contracts guarantee 24-hour response, Essential contracts receive next-business-day scheduling. Many faults resolved same-day with engineers carrying common components. Complete system failures receive highest priority. 24/7 emergency support available for Premium tier customers.
Do I need annual security system maintenance?
Yes — both for reliability and compliance. Security systems deteriorate without maintenance — sensor sensitivity drift, camera lens contamination, gate safety features requiring recalibration, battery degradation. Preventive maintenance identifies issues before failures occur. NSI Gold certification requires annual servicing, insurance policies typically mandate annual inspections, automated gates legally require annual safety testing under BS EN standards.
What happens if my security system fails completely?
Complete security failures require immediate attention — we prioritise emergency repairs ensuring rapid protection restoration. Engineers carry common replacement components for immediate resolution where possible. For alarm panel failures, we provide temporary solutions whilst replacement equipment is configured. Premium tier customers receive 4-hour emergency response minimising extended vulnerability periods.
How long do security system components last?
Component lifespans vary by equipment type and environmental exposure. Burglar alarm control panels last 10-15 years, PIR sensors 10-12 years, batteries 3-5 years. CCTV cameras last 5-10 years depending on weather exposure, recording equipment 5-8 years, hard drives 3-5 years. Gate motors last 10-15 years with proper maintenance, safety sensors 8-12 years. We proactively notify when components approach end-of-life, allowing planned replacement rather than emergency situations.
Can you upgrade old security systems without replacing everything?
Yes. Strategic partial upgrades often provide significant improvements without complete replacement costs. Analogue CCTV can be upgraded to IP cameras whilst retaining cabling infrastructure. Older alarm panels replaced whilst keeping sensors and wiring. Gates can have motors upgraded whilst retaining gates themselves. We assess existing infrastructure, identify what can be retained, recommend cost-effective upgrade strategies. Some situations require complete replacement — particularly when systems are 15+ years old.