Fire alarm, access control, and data cabling.
One accredited team for the systems that keep a commercial building safe, secure, and connected.
NICEIC-accredited.
What Wren Covers
Fire, security and data systems increasingly need to talk to each other.
A fire alarm that releases access-controlled doors, CCTV that triggers on an alarm, network cabling that carries them all. Specifying them separately across different contractors creates gaps.
We design, install, and maintain all three as one system, under one NICEIC accreditation.
What Wren Covers
Fire, security and data systems increasingly need to talk to each other.
Wren Electrical helps businesses and homeowners across Essex and Greater London stay safe, compliant, and energy efficient. Every client calls for a different reason. Businesses need uptime they can plan around through maintenance contracts, EICR testing, fault finding that keeps a site compliant and running. Homeowners need work done properly; first time - consumer unit upgrades, rewires, landlord compliance. And increasingly, both want to save energy costs with solar PV, EV charging, and LED upgrades designed around real consumption, not guesswork.
Whatever the job, it's carried out to one standard: NICEIC-accredited, documented to BS:7671, on every site across Essex and Greater London.
01
Fire Alarm Systems
●Category L1–L5 and P1–P2 system design, to BS 5839 ●Addressable and conventional panel installation, upgrades, and extensions ●Planned servicing, periodic testing, and certification
01
Fire Alarm Systems
●Category L1–L5 and P1–P2 system design, to BS 5839 ●Addressable and conventional panel installation, upgrades, and extensions ●Planned servicing, periodic testing, and certification
02
Access Control & CCTV
●Keypad entry, fob systems, and mag-locks ●IP and analogue CCTV, with remote monitoring ●Multi-tenant and multi-level access permissions
02
Access Control & CCTV
●Keypad entry, fob systems, and mag-locks ●IP and analogue CCTV, with remote monitoring ●Multi-tenant and multi-level access permissions
03
Data Cabling & Networks
●Structured cabling — Cat5e, Cat6, and Cat6A ●Cabinet and rack installation, network point terminations ●Testing and certification for every cable run
03
Data Cabling & Networks
●Structured cabling — Cat5e, Cat6, and Cat6A ●Cabinet and rack installation, network point terminations ●Testing and certification for every cable run
FAQs
Got Questions?
We’re here to make Wren Electrical easy to understand.
Still got questions?
Can you install fire alarm, access control, and data cabling as one project
Yes — we design and deliver all three together, so they're specified and integrated correctly from the outset, rather than as separate contracts.
How often does a commercial fire alarm need servicing?
What is the difference between IP and analogue CCTV?
Do you test and certify data cabling?
Can these systems be integrated with each other?
Can you install fire alarm, access control, and data cabling as one project
Yes — we design and deliver all three together, so they're specified and integrated correctly from the outset, rather than as separate contracts.
How often does a commercial fire alarm need servicing?
What is the difference between IP and analogue CCTV?
Do you test and certify data cabling?
Can these systems be integrated with each other?
Ready for safer and smarter electrical solutions?
© Copyright 2026. All Rights Reserved.
Ready for safer and smarter electrical solutions?
© Copyright 2026. All Rights Reserved.
Ready for safer and smarter electrical solutions?
© Copyright 2026. All Rights Reserved.