How to Choose the Right Fire Extinguisher for Different Office Zones

Extinguishers

Fire safety in the modern workplace cannot be treated as a universal solution. Many building owners mistakenly believe that installing standard water extinguishers at every exit is sufficient. However, different office environments contain a variety of hazards. 

Electrical risks to flammable materials, your protection needs to be tailored to all the risks within the office. Achieving fire safety depends on selecting the correct fire extinguisher types for your office. 

Initial selection is only half the battle; legal standards require a schedule of rigorous fire extinguisher maintenance to ensure total reliability during a fire event. Magni Fire provides specialist expertise needed to assess zonal risks, keeping your operations compliant and your team safe.

Zone 1: The General Office and Admin Areas

The main open-plan office typically contains "Class A" risks, which involve combustible solids such as paper, cardboard, and wood.

Recommended Extinguishers: Water or Foam

Within these office sectors, foam and water are the conventional types of extinguishers to help resolve any fires. Foam is often preferred because it is lighter and can also tackle small flammable liquid spills (Class B). 

Because offices are filled with computers, it is vital to ensure that these extinguishers are handled with care around live equipment. Regular fire extinguisher maintenance is essential here to ensure that pressure gauges are accurate and seals remain intact.

Zone 2: Technical Hubs and Server Rooms

The technical heart of your business requires a specialised approach. Using water or foam on expensive servers will cause as much damage as the fire itself.

Recommended Extinguisher: CO2 (Carbon Dioxide)

CO2 is the essential choice for electrical risks. It is non-conductive and leaves no messy residue, meaning your hardware may still be salvageable after a discharge. 

When considering the fire detection technology for these rooms, Magni Fire often recommends aspirating smoke detection alongside CO2 provision. As discussed in our guide on Is Aspirating Smoke Detection Right for Your Building, early detection in server rooms is critical for business continuity.

Zone 3: Kitchenettes and Breakrooms

Office kitchens introduce unique hazards, particularly if they contain hobs, microwaves, or high-powered toasters.

Recommended Extinguishers: Wet Chemical or Fire Blankets

A wet chemical extinguisher is the only legally compliant choice for fires involving fats and oils (Class F), because standard extinguishing can cause catastrophic flare-ups. Fire blankets can provide a secondary layer of protection, offering a simple yet effective way to smother localised flames. Grease and heat can degrade equipment over time; ensuring these items undergo annual fire extinguisher maintenance is essential for maintaining your office's safety standards. 

Expert Zonal Planning with Magni Fire

Given the sophisticated layout of many modern workplaces, extinguisher placement cannot be left to chance. Ensuring you have the right fire extinguisher type for different parts of your office is vital. 

Magni Fire provides comprehensive site surveys to ensure your equipment is correctly specified, positioned, and maintained. Our approach to fire safety goes beyond simple installation; we look at the structural integrity and fire-stopping measures of your building to provide a complete safety net. This holistic view is similar to the technical precision required for structural protection, which we explore in our piece on Passive Fire Stopping in Construction.

The Magni Fire team is ready to help you audit your office zones and ensure you are fully compliant with current UK fire safety legislation. If you have any questions, please do not hesitate to get in touch. 

Your Fire Detection and Fire Protection Specialists. Contact Us.

Services

Customer testimonials

“We have used Magni Fire Ltd for our servicing and maintenance requirements for a number of years and they provide an excellent, professional and reliable service at competitive prices. They have always been on hand to offer advice and if things can’t be resolved via a call, they provide a prompt response to call outs.”
Dean Spurdens
BJP Insurance Brokers Ltd.
“I had not heard of Magni-Fire until my customer suggested I put them on my supplier list.  He felt that their service was more personal and their reports more professional than our incumbent contractor.  I have to say he wasn’t wrong!  In the 1 ½ years I have been working with Magni-Fire, they have stayed on top of the servicing planner we have in place, sent in the reports, dealt with callouts, and helped out when we needed something at short notice.  I would recommend this contractor.”
Contract Manager
Facilities Management Company
“I met Magni-Fire on a job I had in Harlow (inherited) and they did a fantastic job, later they were asked to quote for some central London work which they won and I have used them here ever since, Ross, Gary and the team are nothing but professional at all times and respond well to any request.”
Mark Purenins
180 Great Portland Street
“Magnifire has been a fantastic partner for our fire safety needs. Their team delivered a seamless fire alarm installation with impressive professionalism and expertise. The quality of their service and attention to detail gave us confidence in the safety of our premises. Highly recommended for anyone looking for reliable and efficient fire alarm solutions.”
Colin Fewster
SAFRAN Electrical Components
“We have works with Magni-Fire on a number of commercial projects over the last 5 years.This has included working alongside Magni-Fire as a separate contractor working on the same project and in-turn, from this, we have also appointed Magni-Fire to work for us on asub-contractor basis. We have found all works to be of a very high standard, prompt installation and overall a very user friendly company. We have no reason not to continuewith our combined work in the future.”
Paul Eldridge
City Electrical Systems
“Magnificent service!!! Gary is always helpful, available and reliable. They do everything possible to get the job done in a manner that is up to standard and within your timeframe.”
Pally De Viteuil
Motherclub
“We have been using Magni-Fire since the summer of 2018.   They assist us with new fire alarm installs, routine maintenance on both fire alarm systems and portable firefighting equipment. Our emergency attendance orders are always fulfilled within the 4-hour attendance target.  Their professional approach to all our needs is second to none. They assist us in London and surrounding areas. Our business relationship is one that grows on a
yearly basis, due to the outstanding service they provide us with. They provide quotes for any remedial works along with the attendance report if not on the same day, then always next, and this allows us to quote our client quickly and turnaround any remedial works within our 2-week deadline. They are available 24/7 and have never missed a call out of hours and have always attended the same night if needed. Gary, Ross and the team run a fantastic company, totally dedicated to the needs of its customers and I would not hesitate to recommend them to an individual customer looking for fire support or a company seeking a fire system’s to assist with their maintenance customers.”
Julie Meeson
CBL Ltd.
“I recently used Magni-Fire for a fire safety project, and I couldn’t be happier with the service! The team was professional, knowledgeable, and attentive to all our needs, ensuring everything was done safely and efficiently. Not only was the service exceptional, but the pricing was also very fair, offering excellent value for the high quality provided. From start to finish, they made the whole process easy and stress-free. I highly recommend Magni Fire to anyone looking for reliable, top-notch fire safety solutions!”
Andrea Oriani
Rocca Bar
“I met Magni-Fire on a job I had in Harlow (inherited) and they did a fantastic job, later they were asked to quote for some central London work which they won and I have used them here ever since, Ross, Gary and the team are nothing but professional at all times and respond well to any request.”
Mark Purenins
180 Great Portland Street