Fire Safety Compliance for Commercial Buildings in London

Red fire extinguisher mounted on wall in commercial building corridor

Why Fire Safety Compliance Matters for London Businesses

Fire safety is not simply a box-ticking exercise — it is a legal obligation that protects lives, safeguards property, and keeps your business operational. For commercial property owners, landlords, and facility managers across London and the South East, understanding your fire safety duties is essential. The consequences of non-compliance range from enforcement notices and hefty fines to criminal prosecution, and in the worst cases, devastating loss of life.

London's commercial property landscape presents unique challenges. Dense urban environments, mixed-use buildings, historic listed properties, and high-rise office towers all demand tailored approaches to fire safety. Whether you manage a single office or a portfolio of commercial premises, this guide explains exactly what the law requires and how to stay compliant.

The Legal Framework: Understanding the Regulatory Reform (Fire Safety) Order 2005

The cornerstone of fire safety legislation for commercial buildings in England and Wales is the Regulatory Reform (Fire Safety) Order 2005 (commonly known as the FSO or RRO). This legislation applies to virtually all non-domestic premises, including offices, shops, warehouses, factories, restaurants, and shared areas of mixed-use buildings.

Under the FSO, the Responsible Person — typically the employer, building owner, landlord, or managing agent — must take reasonable steps to reduce the risk of fire and ensure people can escape safely if one does break out. The key duties include:

  • Carrying out a fire risk assessment and reviewing it regularly, or whenever significant changes occur to the building or its use.
  • Identifying and mitigating fire hazards, including the safe storage of flammable materials and the removal of ignition sources.
  • Installing and maintaining fire detection and warning systems, including smoke alarms, heat detectors, and manual call points.
  • Ensuring clear escape routes are properly marked, well-lit, and unobstructed at all times.
  • Providing appropriate firefighting equipment such as extinguishers, fire blankets, and — where appropriate — sprinkler systems.
  • Training staff in fire safety procedures, including evacuation drills and the use of firefighting equipment.
  • Recording the findings of your fire risk assessment and keeping documentation accessible.

Since the Fire Safety Act 2021 came into force in May 2022, the scope of the FSO has been clarified to include the structure, external walls (including cladding and balconies), and flat entrance doors of multi-occupied residential buildings. If you manage a mixed-use property in London with both commercial and residential elements, this affects you directly.

Fire Risk Assessments: Your Most Important Obligation

The fire risk assessment (FRA) sits at the heart of compliance. It is a structured evaluation of your premises that identifies potential fire hazards, the people at risk, and the measures needed to reduce or eliminate that risk.

Who should carry out the assessment?

The FSO states that the assessment must be carried out by a competent person. While there is no legal requirement to use an external assessor, it is strongly recommended for commercial buildings. A qualified fire risk assessor will have the training and experience to spot hazards that an untrained eye might miss. Look for assessors registered with professional bodies such as the Institution of Fire Engineers (IFE) or those holding third-party certification.

How often should it be reviewed?

There is no fixed legal interval, but best practice is to review your FRA annually, or sooner if there are significant changes to the building, its layout, the number of occupants, or the nature of work carried out. After any fire-related incident — however minor — an immediate review is advisable.

What should the assessment cover?

A thorough fire risk assessment for a London commercial building should address:

  • Sources of ignition and fuel within the premises
  • Structural fire protection, including compartmentation and fire-resistant walls
  • Means of escape, including the number, width, and condition of exit routes
  • Emergency lighting and signage
  • Fire detection and alarm systems
  • Firefighting equipment provision and maintenance
  • Staff training records and evacuation procedures
  • Special considerations for vulnerable occupants or visitors

Fire Doors: A Critical Compliance Area

Fire doors are one of the most frequently cited areas of non-compliance during fire safety inspections. They serve a vital role in compartmentalising a building to slow the spread of fire and smoke, giving occupants precious time to evacuate.

Under current UK regulations, fire doors in commercial buildings must be inspected regularly to ensure they remain in efficient working order. The Building Safety Act 2022 has placed renewed emphasis on fire door maintenance and introduced the concept of a golden thread of building information — a requirement that every detail of fire safety components, including door specifications, installation, and inspection history, is properly recorded and accessible.

For commercial premises, you should ensure that:

  • All fire doors are correctly rated (typically FD30 or FD60) for their location
  • Self-closing devices are fitted and functioning properly
  • Intumescent strips and smoke seals are intact and undamaged
  • Doors are never propped open (unless fitted with approved hold-open devices linked to the fire alarm)
  • Quarterly visual checks and six-monthly detailed inspections are carried out
Fire doors are only effective if they are properly maintained. A single propped-open fire door can render an entire compartmentation strategy useless.

Emergency Evacuation Planning

Every commercial building needs a clear, well-practised emergency evacuation plan. This is not something to draft and forget — it must be a living document that reflects the current state of your premises and workforce.

Key elements of an effective plan

Your evacuation plan should include designated assembly points, clearly defined roles and responsibilities for fire wardens or marshals, procedures for accounting for all occupants (including visitors and contractors), specific arrangements for people with disabilities or mobility impairments, and communication protocols with the London Fire Brigade. For buildings with multiple tenants, coordination between all parties is essential. Each tenant's plan should dovetail with the building-wide strategy.

Fire drills

Regular fire drills are not just good practice — they are effectively required under the FSO, which mandates that emergency procedures be tested. Most fire safety professionals recommend conducting drills at least twice a year, with unannounced drills being particularly valuable for testing genuine response times. Keep records of every drill, including the date, evacuation time, and any issues identified.

Staff Training Requirements

The FSO requires that employees receive adequate fire safety training. This should be provided at induction and refreshed regularly — typically annually, though more frequent training may be appropriate for higher-risk premises.

Training should cover how to raise the alarm, what to do upon hearing the alarm, the location and use of fire exits and escape routes, the location and basic operation of firefighting equipment, and the specific duties of fire wardens. For facilities management teams and cleaning staff who may work outside normal business hours, tailored training is particularly important. Staff working alone or during unsociable hours face different risks and need specific guidance on evacuation procedures.

Maintenance and Record-Keeping

Ongoing maintenance of fire safety systems is just as important as the initial installation. The following equipment requires regular testing and servicing:

  • Fire alarm systems — weekly tests and six-monthly professional servicing
  • Emergency lighting — monthly function tests and annual full-duration tests
  • Fire extinguishers — annual servicing by a competent engineer
  • Sprinkler systems — weekly, monthly, and quarterly checks as per BS EN 12845
  • Fire doors — quarterly visual checks and six-monthly detailed inspections

All testing and maintenance should be documented in a fire safety logbook. This logbook is one of the first things a fire safety inspector will ask to see, and incomplete records can result in enforcement action.

The Role of Your Cleaning and FM Provider

Your commercial cleaning and facilities management provider plays a surprisingly important role in fire safety compliance. Well-trained cleaning teams help maintain clear escape routes, ensure fire doors are not obstructed, report damaged safety signage, and keep communal areas free from combustible waste.

At Mithraic, our facilities management teams across London and the South East are trained to identify and report fire safety concerns as part of their routine work. From ensuring bin stores do not become fire hazards to reporting faulty emergency lighting, a good FM partner acts as an extra set of eyes for your fire safety strategy.

What Happens if You Are Not Compliant?

The London Fire Brigade has the authority to inspect any commercial premises and take enforcement action where fire safety standards are not met. This can include informal advice, an enforcement notice requiring specific improvements within a set timeframe, a prohibition notice that can close all or part of a building immediately if there is an imminent risk to life, or criminal prosecution. Fines for fire safety offences are unlimited, and in serious cases, responsible persons can face imprisonment.

In recent years, enforcement activity in London has increased, particularly following the renewed focus on building safety. Proactive compliance is always preferable to reactive action after an inspection.

A Practical Compliance Checklist

To help you stay on top of your fire safety obligations, here is a summary of the key actions every London commercial building manager should prioritise:

  1. Commission or review your fire risk assessment annually
  2. Ensure all fire doors are inspected and maintained on schedule
  3. Test fire alarms weekly and arrange professional servicing twice yearly
  4. Conduct fire drills at least twice a year and record the results
  5. Provide fire safety training to all staff at induction and annually thereafter
  6. Maintain a comprehensive fire safety logbook with all records up to date
  7. Check that escape routes are clear, well-lit, and properly signed
  8. Review and update your evacuation plan whenever the building or occupancy changes
  9. Ensure your cleaning and FM provider understands their fire safety responsibilities

Keeping Your Commercial Building Safe and Compliant

Fire safety compliance is an ongoing commitment, not a one-off task. The regulatory landscape continues to evolve, with the Building Safety Act 2022 and recent updates to fire door inspection requirements raising the bar for commercial property managers. Staying informed, investing in regular maintenance, and working with knowledgeable partners are the most effective ways to protect your building, your occupants, and your business.

If you are looking for a facilities management partner that takes fire safety seriously, get in touch with Mithraic. We support commercial buildings across London and the South East with comprehensive FM services that include fire safety awareness as standard.

About the Author

The Mithraic Team brings decades of combined experience in facilities management and commercial cleaning services. We're committed to sharing industry insights and best practices to help facility managers and business owners make informed decisions.

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