UK-wide fire safety
Fire safety expertise, from
strategy to installation.
Based in Sheffield and working across the UK, J.S.O provides fire safety consultancy, fire engineering and electrical services that protect people, support compliance and keep projects moving.
From early-stage strategy and risk assessment through to installation, remedial works and ongoing management, our experienced fire engineers and electrical team provide practical support throughout the building lifecycle.
- UK-wide
- Fire Safety Consultancy
- Fire Engineering
- Fire Electrical Services
What we do
Consultancy and electrical services
J.S.O provides coordinated support from early design and risk management through to installation, testing and remedial works.
Fire Safety Consultancy
Our consultants support clients from initial design through to occupation, providing clear and proportionate advice tailored to each building, its occupants and the risks involved.
- Fire strategy and engineering
- Risk assessments
- Fire door surveys
- Compartmentation surveys
- Construction-phase support
Fire Electrical Services
Our electrical team installs, tests and maintains essential life safety systems, while providing practical remedial support where faults or compliance issues are identified.
- Fire alarm systems
- Emergency lighting
- Electrical remedial works
- Fire stopping
- Commercial EICRs
Services
Key services
Professional consultancy, engineering, inspection and electrical support for buildings and projects across the UK.
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Fire Safety Consultancy
Fire strategy plans and fire engineering
Project-specific strategies and engineering support for new developments, refurbishments, extensions and changes of use.
Explore fire strategy and engineering -
Fire Safety Consultancy
Fire risk assessments
Comprehensive assessments that identify hazards, review existing precautions and provide clear, prioritised actions.
Learn about risk assessments -
Fire Safety Consultancy
Fire door surveys
Detailed inspections of doors, frames, seals and ironmongery, supported by clear reports and priorities for remedial work.
Learn about fire door surveys -
Fire Safety Consultancy
Compartmentation surveys
Surveys of fire-resisting walls, floors and service penetrations to identify breaches that could allow flames and smoke to spread.
Learn about compartmentation surveys -
Fire Electrical Services
Fire alarm systems
Design, installation, alteration and remedial works for alarm systems tailored to the building’s use, occupancy and risks.
Explore fire alarm systems -
Fire Electrical Services
Emergency lighting
Installation, testing, maintenance and remedial works to help keep escape routes illuminated during a loss of normal power.
Explore emergency lighting
Why J.S.O
Technical expertise, practical advice
We are fire engineers first. That means proportionate recommendations, clearly evidenced, and a team that can carry out the work as well as specify it.
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01
Qualified fire engineering knowledge
Our team brings specialist technical and regulatory knowledge to each project, helping clients make informed decisions based on the building, its use and the risks involved.
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02
Practical, proportionate advice
We provide clear recommendations that can be understood and acted upon, with solutions proportionate to the individual property or project.
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03
Design through to occupation
Our involvement can begin during early-stage design and continue through construction, handover, occupation and ongoing compliance management.
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04
Consultancy and delivery under one roof
We combine professional consultancy with practical electrical services, helping clients move from identifying an issue to resolving it.
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05
UK-wide support
Based in Sheffield, we work with developers, contractors, landlords, property managers, educational organisations, healthcare providers and public-sector clients throughout the UK.
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06
Complex and higher-risk projects
Our team has experience supporting complex buildings and developments where careful coordination, technical evidence and clear oversight are essential.
About us
A fire safety consultancy built on engineering knowledge
J.S.O is not simply a risk assessment provider. We are a team of fire engineers, consultants and electrical professionals with experience across regulation, design, construction and occupied buildings.
Our approach is collaborative and evidence-driven. We work closely with clients and project teams to identify risks, resolve compliance issues and develop solutions that protect people, property and business continuity.
Whether you require a strategy for a new development, construction-phase assurance, an assessment of an occupied building or practical electrical remedial works, our team can guide you through the process.
We are the sister company of J.S.O Environmental, giving clients access to fire safety and environmental compliance expertise from a single group.
Our work
Recent projects and case studies
Construction-phase fire safety
United Living, Tariff Street
Construction-phase fire safety planning, a site-specific fire risk assessment and ongoing reviews for a new high-rise residential development in Manchester.
View case study
Fire strategy planning
Barnsley Football Club
A regulator-ready fire strategy for the renovated East Stand at Oakwell Stadium, addressing evacuation, compartmentation and life safety systems.
View case study
Fire risk assessments & fire door surveys
School trusts
Substantial programme of retrospective fire safety work across a portfolio of schools, providing Fire Strategy Plans supported by detailed Fire Compartmentation Surveys where reliable compartmentation information did not already exist.
Reviews
What our clients say
Read what clients have said about working with the J.S.O team on projects and properties across the UK.
“Top professional service from all the staff at JSO. Easy to deal with, clear and simple communication and advice. I would highly recommend their services.”
John Pope
“Amazing staff, extremely helpful and put you at ease through the entire process. Would highly recommend and will be using again.”
Donna Dixon
“A very professional service provided by them. Communication with everyone at the company was excellent. Would definitely recommend them.”
Dez Omar
“Received a very prompt and professional service.”
Chi Chan
“Excellent service from start to finish. Managed to squeeze us in at short notice and get the report to us efficiently. Wouldn’t hesitate to use again.”
Joanne Jarvis
“Friendly, helpful guys to deal with, quick to respond to any queries or advice we needed. Would recommend.”
Rebecca Wood
Insights
Latest from J.S.O
Approved Document B Changes in September 2026: What Developers and Designers Need to Know
The Approved Document B changes in 2026 take effect in England on 30 September. The principal amendment introduces a recommendation for more than one common stair in blocks of flats where the building has a top storey 18 metres or more above ground level. The revised...
What is a Fire Strategy Plan?
A fire strategy plan is a document that explains how fire safety is achieved in a building. It sets out the construction, fire compartments, escape routes, detection systems, suppression measures, and the management procedures needed to keep the premises safe. A fire...
Fire Safety in Construction
Fire safety in construction is one of the biggest challenges facing contractors, developers, and site managers. Construction sites are dynamic and high-risk. They often lack permanent fire protection systems, store combustible materials, and change layout regularly....
Get in touch
Tell us about your project
Send us the details and the right member of the team will come back to you with clear advice and a quote.
Looking for environmental services? Visit J.S.O Environmental