Fire Alarm Commissioning for Electrical Contractors & Installers
Fire alarm commissioning engineers supporting electrical contractors across London, Southampton and the South East.
We provide fire alarm commissioning, design review and compliance sign-off for electrical contractors, M&E contractors and fire alarm installers across London and the South East.
You install it. We commission it, sign it off, and hand it over — correctly documented and BS 5839-1 compliant.
Fast mobilisation available — we regularly support projects at short notice to meet handover deadlines.
Who This Is For
Supporting Contractors at Commissioning Stage
Many electrical and M&E contractors install fire alarm systems as part of a wider package — but commissioning, cause & effect testing and BS 5839-1 sign-off requires specialist knowledge and BAFE-registered engineers.
We work alongside your team to commission the system, verify the design, and produce the documentation required for handover. We support your install — we don't take it over.
We're typically brought in at final stage to ensure systems are compliant, fully tested, and ready for handover without delays.
Electrical Contractors
Installing fire alarm systems as part of a fit-out, refurbishment or new build package and needing commissioning and sign-off.
M&E Contractors
Delivering full mechanical and electrical packages where fire alarm commissioning is required at handover stage.
Fire Alarm Installers
Installers who need commissioning support, design verification, or assistance bringing a system to compliance.
BAFE SP203-1
Registered Engineers
What We Provide
Fire Alarm Commissioning Services
From initial design review through to full BS 5839-1 commissioning, cause & effect testing and handover documentation — we cover every stage of the fire alarm sign-off process.
Fire Alarm Commissioning
- Fire alarm commissioning to BS 5839-1 standards
- Cause & effect testing — all zones and devices
- Device and loop testing
- Panel configuration and programming
- Handover documentation and commissioning certificate
Design Review & Assist
- Compliance review against BS 5839-1
- Zoning and coverage advice
- Cause & effect guidance
- Pre-commissioning design check
- Recommendations to avoid sign-off delays
Fault Finding & Rectification
- Identify issues preventing sign-off
- Wiring faults, loop errors and device failures
- Panel configuration problems
- Assist in bringing systems to compliance
- Clear reporting on findings and remedial actions
Equipment Supply
- Panels and field devices
- Open protocol addressable systems
- Apollo devices — XP95, Discovery, Soteria
- Advanced MxPro range awareness
- Gent / Notifier systems where specified
When Fire Alarm Commissioning Is Required
When Do You Need Fire Alarm Commissioning?
Fire alarm commissioning is typically required:
At completion of a new installation
Following system upgrades or extensions
When taking over an existing system
Before handover to client or building control
When certification is required for compliance or insurance
If you're unsure whether your system is ready, we can review it and advise before attending site.
Common Scenarios
New build handover
Electrical contractor completing a new build fit-out needs commissioning and sign-off before practical completion.
System extension
Existing system extended as part of a refurbishment — new zones and devices need commissioning to BS 5839-1.
System takeover
Taking over a system from another contractor or inheriting an existing installation that needs a compliance review.
Insurance requirement
Building owner or insurer requires a BAFE-registered commissioning certificate before cover is confirmed.
Our Approach
How We Work With Contractors
We understand the pressures contractors face at handover stage. Commissioning delays cost time and money — we're set up to move quickly, work alongside your team, and get the system signed off without disrupting your programme.
Work alongside your team
We integrate with your site team and work to your programme, not ours. No unnecessary delays, no scope creep.
Flexible attendance
We can attend at short notice and work around site access, occupancy and handover deadlines.
Fast turnaround
Commissioning and sign-off documentation turned around quickly so you can close out the project.
Understand site pressures
We've worked on enough commercial sites to know what matters at handover. Clear communication, no surprises.
Typical Engagement
Initial enquiry
Tell us about the system — panel type, number of devices, site location and programme.
Pre-commissioning review
We review the design, cause & effect matrix and any outstanding issues before attending site.
Site attendance
Our engineer attends site, carries out full commissioning and testing to BS 5839-1.
Documentation & sign-off
Commissioning certificate, as-tested records and handover documentation issued promptly.
System Experience
Systems We Commission
Our engineers are experienced across a wide range of fire alarm systems, with a strong focus on open protocol solutions and practical, site-led delivery.
We regularly commission systems across commercial, multi-site and complex environments, including:
We're used to working on systems installed by others, picking up at commissioning stage, and ensuring everything is configured correctly, compliant, and ready for handover.
Including integration with other life safety systems where required.
Advanced (MxPro range)
Open protocol addressable panels — MxPro 4 and MxPro 5
Open protocol addressable systems
Multi-manufacturer compatible systems to EN 54
Apollo devices
XP95, Discovery and Soteria detector ranges
Gent / Notifier systems
Where specified by client or consultant
Aspirating detection
VESDA, FAAST and similar ASD systems
Conventional & addressable systems
All categories to BS 5839-1
Networked & multi-panel systems
Complex networked installations across large sites
Project Experience
We regularly support electrical contractors, M&E contractors and fire alarm installers across a range of commercial projects, providing commissioning, design review and compliance support at handover stage.
Compliance
BS 5839-1 & BAFE SP203-1 Compliant Commissioning
This is often a requirement for handover, building control and insurance approval.
Proper fire alarm commissioning isn't just about getting the panel to work — it's about ensuring the system is correctly configured, fully tested, and documented to the standard required for compliance and insurance purposes.
Correct documentation
Commissioning certificates, as-tested records, cause & effect matrices and handover packs produced to BS 5839-1 requirements.
BAFE SP203-1 registered
Our commissioning engineers are BAFE SP203-1 registered, providing the third-party accreditation your client and insurer expects.
Compliance-focused delivery
Every commissioning visit is carried out with the end goal of a clean, compliant sign-off — not just a working system.
Registered Organisation
BAFE SP203-1
Fire Detection & Alarm Systems
Registration ID: 303410
Why BAFE registration matters for contractors
Many building owners, insurers and local authorities require fire alarm commissioning to be carried out by a BAFE-registered company. Using a BAFE SP203-1 registered engineer for commissioning protects your client and removes liability from your business. It also provides confidence to your client that the system has been commissioned correctly by a competent, third-party accredited company.
View our accreditationsFAQ
Common Questions from Contractors
Related Services & Pages
Get in Touch
Need Fire Alarm Commissioning Support?
Whether you need commissioning for a system you've installed, a design review before you start, or help resolving an issue preventing sign-off — send us the details and we'll confirm availability and next steps quickly.