Blake Fire and Security Systems

Fire Compartmentation for Electrical Services in a Southend HMO

Date: 19 September 2025

A Fire Risk Assessment for a house that had been split into two flats highlighted an issue. So a local letting agent approached Blake’s to see if we could help.

The Fire Risk Assessor had flagged a potential risk. There were gaps where the electrical services entered the consumer unit.

THE FIRE COMPARTMENTATION PROBLEM

During our site survey, we recognised that the solution was Fire Compartmentation.

But it wasn't going to be as easy as that sounds.

The consumer unit was right by the front door in a narrow communal area.

To follow building regulations, we needed to enclose the services in a cupboard.

But this was not possible because, as Martin Blake, our Passive Fire Protection Manager, said:

the width of the communal area was too small; and
a conventional box would restrict the opening of the front door.

A FIRE COMPARTMENTATION SOLUTION

We needed a box that was big enough to cover the consumer unit and its supplies.

And narrow enough to fit into the area without restricting the front door.

But which could still have the relevant certification for Fire Compartmentation.

So we installed a purpose made metal over box around the electrical supply.

This product comes with its own certificate and test evidence. We gave this certification to the letting agents. And supplied each tenant with a key to the box.

Oh, nearly forgot! We also had to move the water supply so that the pipes went around the box.

WHAT DID THE LETTING AGENT THINK OF THIS JOB?

Since carrying out these works, we have worked with this letting agent on their numerous properties across the city of Southend.

CAN BLAKE'S HELP YOU?

Have you had a Fire Risk Assessment and need Fire Compartmentation help you can trust?
Click the Get Your Quote button below and we will be happy to help on your project.

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This article is provided for general information and educational purposes only. It is not legal advice, a fire risk assessment, a compliance audit, a technical specification, or a substitute for advice based on inspection of your premises. You should not rely on it as the basis for taking action, delaying action, or deciding not to act. Your legal duties, fire safety arrangements and system requirements depend on your specific premises, use, occupancy, risk profile and the findings of a suitable and sufficient fire risk assessment. 

Fire safety and security legislation, standards, guidance and enforcement practice can change. Blake Fire & Security Systems makes no representations or guarantees, express or implied, that content on this site is accurate, complete or current. For practical advice about fire alarm systems, emergency lighting, security systems or system maintenance requirements for your premises, Call Blake's on 01702 447800. For legal advice, fire risk assessment advice or confirmation of your statutory duties, speak to an appropriately qualified legal adviser, competent fire risk assessor or competent fire safety professional.

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