I.S. 3218:2024
I.S. 3218 certificates, in plain English.
Most people land here because somebody has asked them for one. This page tells you which document that is, what it proves, and how to get it if your building hasn't got one.
Start with why you're asking.
There is no single "I.S. 3218 certificate". The standard uses a set of confirmation documents, each covering a different stage in a system's life. Which one you need depends entirely on what has just happened.
Your insurer, landlord or fire officer has asked for a certificate. They want the confirmation of servicing and testing, the document that proves the system is being maintained now. Not the paperwork from when it was installed. Jump to that section
You've just had a system installed, extended or altered. You should receive a set of confirmations covering design, installation, commissioning and acceptance. Jump to that section
You've taken over a building and there's no paperwork at all. Common, and fixable. Jump to that section
The common one
The certificate your insurer actually wants.
When a commercial policy asks for a fire alarm certificate, it is almost always asking for evidence that the system is being serviced to the standard, not evidence that it was installed correctly some years ago.
That evidence is two documents that travel together.
Confirmation of servicing and testing
Issued after a service visit by the company that carried it out. It names the premises, the system, the work done, any outstanding defects, and the date the next service falls due. This is the single page most insurers and fire officers ask to see.
Schedule of servicing and testing
The running record behind the certificate: the planned service frequency for the system, and each visit logged in turn with the date, who attended and when the next one is due. A certificate on its own says the system was serviced once. The schedule shows a pattern, which is what somebody assessing a claim will look for.
A missed service history is what an insurer looks for after a fire. Most commercial policies carry a condition requiring fire safety systems to be maintained to the relevant standard. The certificate is not a formality. It is the document that answers that condition.
Alongside both sits the fire safety register, the building's own logbook, held on site and filled in by whoever is responsible for the premises. It records the weekly call point test, the daily panel check, false alarms, faults and callouts. A fire officer will usually open the register before looking at anything else, because it tells them in a couple of minutes whether the building is being managed.
New, extended or altered systems
The five confirmations.
I.S. 3218:2024 sets out model confirmation documents covering each stage of putting a system in. They are signed by whoever carried out that stage, which is why a building with several contractors in its history often ends up with a mixed set, and why one missing confirmation is such a common finding.
Confirmation of design
States the system category the building was designed to, the standard applied, and any variations agreed. Everything that follows is measured against this document, so a system with no design confirmation has nothing to be judged against.
Confirmation of installation
Confirms the system was installed to the design, including cabling, containment and the electrical work behind it.
Confirmation of commissioning
Confirms every device was tested and the system as a whole does what it was designed to do: detection, sounders, interfaces, causes and effects. This is the stage most often done badly on a rushed handover, and the one that costs most to put right later.
Confirmation of modification
Used when an existing system is extended or altered rather than installed from scratch: a new wing, a re-partitioned floor, a change of use. The 2024 edition brought this in to reflect how systems actually change over time, instead of forcing every alteration through the full new-system paperwork.
Confirmation of acceptance
The handover document. It records that the system was demonstrated to the person taking responsibility for the building, that the documentation was handed across, and that they know how to operate it. Where a fire safety certificate application is in play, this is usually the one being asked for.
Starting from nothing
If your building has no certificates at all.
This is a more common position than people expect, and it is rarely anyone's fault. Buildings change hands. Managing agents change. The contractor who installed the system twenty years ago is no longer trading, and the folder went missing in an office move.
You cannot retrospectively certify work nobody witnessed, and any contractor who offers to is not doing you a favour. What you can do is establish where you stand now and certify forward from there.
1. Survey. Establish what is actually installed, what category it appears to have been designed to, and what condition it is in. This is work we do free of charge, whether or not you use us afterwards.
2. Close the gaps. Anything that stops the system meeting the standard gets quoted, and you decide what to do. Often it is far less than people fear.
3. Certify forward. Servicing and testing confirmations start from the next visit, and the schedule builds from there. Within one service year you have a full, defensible record.
4. Start the register. If there is no fire safety register on site, that is the cheapest and fastest thing to fix, and the first thing a fire officer will ask for.
You are not penalised for inheriting a building with no records. You are exposed by leaving it that way.
Questions
Common questions.
What fire alarm certificate does my insurer need?
In almost every case, the current confirmation of servicing and testing, backed by the schedule showing the visits behind it. Insurers want evidence the system is being maintained, not evidence it was installed correctly years ago. If your policy schedule names a specific document, send us the wording and we will tell you which one it means.
How long is an I.S. 3218 certificate valid for?
A servicing confirmation covers the period up to the next service due date printed on it. Most commercial systems are serviced quarterly with an annual certificate, so it is effectively current for a year, provided the quarterly visits behind it actually happened. Commissioning and acceptance confirmations do not expire, but they only describe the system as it was on the day.
Can I get a certificate for a system somebody else installed?
Yes. We survey the system, record what is installed, put right anything that stops it meeting the standard, and certify from there. We cannot retrospectively confirm a design or installation we did not carry out, but we can issue servicing and testing confirmations for a system we maintain.
Who is allowed to issue one?
The person signing must be competent for the work being confirmed, and signs on behalf of the company that carried it out. Design, installation, commissioning and servicing can each be confirmed by different parties. That is why a building with a long contractor history often has a mixed set of documents.
How often does a commercial system need servicing?
Most need four service visits a year. Certain smaller non-residential systems may be serviced twice a year. Separately, the standard expects a weekly test of one call point and a daily check of the panel, carried out by the premises rather than the contractor.
Is this the same as a fire safety certificate?
No, and the two get confused constantly. A fire safety certificate is granted by the local authority under the Building Control Regulations, and concerns the design of the building. An I.S. 3218 confirmation concerns the fire alarm system in it. You can hold one and not the other.
Not sure which one you need?
Send us what you've been asked for, or what you already hold, and we'll tell you where the gap is. If it's easier, we'll survey the building free of charge and put it in writing.