Fire extinguishers are an essential piece of health and safety apparatus that should be installed in all workplaces and public areas. They have the potential of being the final stage of defence against a growing blaze, and in that situation, you want to be sure that they are ready to work.
So, how long do fire extinguishers last? And do fire extinguishers expire? This blog post will give you the tools to keep your safety equipment in working order.
Do Fire Extinguishers Expire?
Yes, fire extinguishers do expire, but “expiration” can mean different things depending on extinguisher type, usage and maintenance levels. Most manufacturers and safety standards suggest a service life of 5 to 15 years, after which the extinguisher may no longer function effectively.
Over time, the pressurised chemicals inside can degrade, settle or start to leak, reducing the extinguisher’s ability to suppress a fire. Even if the extinguisher appears physically intact, the internal mechanisms, such as the pressure gauge, valve or nozzle, can fail due to age.
So, do fire extinguishers expire? Yes, they do, some at different rates and for different reasons, so it is important to conduct regular servicing on all units and contact professionals in this area, like the qualified experts here at Fire Safe Services, to make sure that your health and safety equipment is up to the task.
Typical Lifespan By Extinguisher Type
| Extinguisher Type | Typical Lifespan | Maintenance Note |
| Water | 5 years before extended service | Should undergo an extended service or be replaced after 5 years; full replacement or pressure test after 10 years. |
| CO2 | 10 years | Must be hydrostatically pressure-tested or replaced after 10 years due to high internal pressure. |
| Foam | 5 years before extended service | Requires extended service or replacement at 5 years; replace completely after 10 years. |
| Dry Powder | 5 years before extended service | Extended service at 5 years, then replace or pressure-test after 10 years; check regularly for powder compaction. |
| Wet Chemical | 5 years | Typically replaced or undergoes extended service after 5 years, particularly for kitchen environments. |
How To Tell if a Fire Extinguisher Has Expired
Check the date:
Look for the manufacturer or expiry date that is printed either on the body of the extinguisher or one of its many regulation labels. Most extinguishers have a lifespan of 5-15 years, depending on the manufacturer. If this date has passed, the extinguisher should be replaced and serviced as soon as possible.
Inspect the pressure gauge:
Fire extinguishers come with built-in pressure gauges. If the needle is in the green zone, your extinguisher should work perfectly well; if it is in the red zones, either under- or over-pressurised, then it may be time for a service.
Look for damage:
As part of your monthly safety checks of your place of work, every fire extinguisher on-site must have a visual check by a trusted member of staff. Ensure the tamper seal and safety pin are still in place and that there is no damage to the body itself.
If the tamper seal or safety pin is broken/missing, it may mean that the extinguisher has been used and needs to be refilled.
Review the service label:
Most extinguishers have a label showing inspection dates. If it hasn’t been serviced within the recommended timeframe (usually annually), it may be unsafe to use.
Age:
Even if everything looks fine, the overall age matters. Extinguishers older than their recommended lifespan should be professionally inspected or replaced, as chemicals can degrade and affect performance. The age of your extinguisher will be noted during your annual service.
What Happens if You Use an Expired Fire Extinguisher
Using an expired fire extinguisher can be risky, and it may fail when you need it most in crucial situations. Over time, the chemicals inside can degrade, settle or lose pressure, reducing the extinguisher’s overall effectiveness. If you attempt to use it, the extinguisher may release little or no extinguishing agent, meaning it is unable to put out a fire.
In some cases, an expired extinguisher can leak or even burst under pressure, creating a new element of danger rather than preventing the initial danger. The nozzle or hose may also be weakened, causing the agent to spray unpredictably or fail to reach the fire. Even if it discharges, the reduced chemical effectiveness may allow the fire to spread more quickly, putting people, property and the surrounding area at greater risk.
Legal Responsibilities for Businesses
As per the Regulatory Reform (Fire Safety) Order 2005, all businesses across England and Wales have specific rules laid out regarding fire safety. Included in this legislation are correct practices and how you should go about recycling expired fire extinguisher units.
It outlines how you should be servicing and maintaining your safety equipment and how often. From the nozzle to the hose to the safety pin, all aspects of a fire extinguisher must be to the highest standard. Broken or used fire extinguishers must be repaired/replaced/refilled as soon as possible. A nominated safety worker should be making these checks and keeping comprehensive records of all of this. Failure to do so can result in fines, your business being forced into shutdown until correct practices are resumed, or even prison sentences.
The law states that businesses must ensure that extinguishers are not expired or faulty and are fully operational at all times.
What To Do if Your Fire Extinguisher Is Expired
If you have reason to believe your fire extinguisher has expired, or you have been informed of this via a trained professional, here’s what you should do:
- When it has reached the end of its service life, you should remove and replace the unit immediately. This ensures safety and legal compliance.
- Even if you think the pressure is all gone, there could be a problem with the gauge, so do not put extinguishers in the bin. It is actually illegal in the UK to do this due to the potential for pressurised explosion and chemical leaks.
- Your local recycling centre should have all the facilities necessary to accept and correctly dispose of all fire extinguishers, both professional and domestic. Your local council will have information on what sizes the recycling centre can manage.
- If you have damaged units, multiple extinguishers, or your local centre can’t take them, you will need to make use of a professional disposal company or third-party supplier to take your expired extinguishers away. Many suppliers also offer a ‘take back’ service when they renew your fire safety equipment.
How To Extend the Life of Your Fire Extinguisher?
- Storing your extinguishers in the proper environment where they aren’t exposed to extreme heat/cold, moisture or direct sunlight will extend their life and protect them from internal deterioration.
- Prevent physical damage to your fire extinguisher units by lifting them off the ground level and placing them on the wall. Don’t have them in the way of high-traffic zones.
- Have your elected on-site health and safety supervisor/manager or fire marshal perform monthly visual checks on all your fire safety equipment. This is the most immediate way to identify broken tamper seals, dents, leaks, or pressure issues.
- Ensure to get your fire extinguisher serviced annually.
- Outside the yearly service requirements, you should also send your extinguishers off for extended services that include full pressure checks, flow checks, hydrostatic body checks and discharge spread tests.
Partnering With Fire Safe Services
At Fire Safe Services, we understand the importance of reliable fire safety equipment. Our team of fully qualified technicians can identify expired or at-risk extinguishers and ensure all your units meet current British Standards and legal requirements. By replacing or servicing expired extinguishers promptly, we help you maintain a safe and compliant workplace, giving you confidence that your staff and property are fully fire protected.
Contact Fire Safe Services today to book a service or arrange a free site survey. Together, we’ll make sure your workplace is safe, compliant and ready for any emergency. Call us on 01527 570 952 or email info@firesafeservices.co.uk.
