Smoke Tested Meter Overboxes

Smoke Control That Protects Lives.

Smoke tested meter overboxes tested to BS EN 1634-3:2004 for cold smoke containment around gas, electric, and water meters. Fire and smoke combination options available. UK manufactured with 3–5 day lead times.

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Most fire fatalities are caused by smoke, not flames. When smoke migrates through meter openings in corridors and communal areas, the entire fire strategy is compromised. Our smoke tested meter overboxes are tested to BS EN 1634-3:2004, preventing cold smoke transfer around gas, electric, and water meters. Fire and smoke combination options available. We are a UK manufacturer, not a reseller. Every smoke tested overbox is produced in-house, giving architects and contractors complete confidence in compliance and sealing performance.

Last updated: March 2026 · Reviewed by Rapid Access Technical Team

Powder Coat Finish

Zintec Steel

Smoke Seal System

Intumescent Core

Concealed Fixings

Why Smoke Tested Matters

Smoke Kills Before
Fire Does

If smoke penetrates a compartment through an unprotected meter opening, occupants lose visibility, fire crews lose time, and the building loses compliance. Our smoke tested overboxes restrict smoke movement and support the overall fire strategy.

Cold Smoke Containment

Independently tested to BS EN 1634-3:2004 to prevent cold smoke migrating through meter openings in corridors and communal areas.

Fire + Smoke Combination

Combined fire and smoke rated overboxes available, providing BS 476 Part 22 fire resistance and BS EN 1634-3:2004 smoke control in a single unit.

Gas, Electric & Water Meters

Fits all standard UK gas, electric, and water meters. Standard sizes cover common installations across residential and commercial buildings.

Secure Lockable Access

Tamper-resistant lock options ensure meters remain accessible for reading and maintenance while preventing unauthorised access.

Testing & Compliance

Quick Specs

Smoke testing and performance data for smoke tested meter overboxes. All products tested under controlled conditions that replicate real-world scenarios.

Specification	Value
Smoke Standard	BS EN 1634-3:2004
Classification	Sa / S200
Meter Types	Gas / Electric / Water
Material	Zintec steel
Combination	Fire + Smoke available
Finish	White powder coated
Lead Time	3–5 working days
Manufacture	UK (Nuneaton)

Advantages

Advantages of Smoke Tested
Meter Overboxes

Purpose-built smoke containment for meter openings, protecting escape routes and supporting building fire strategy compliance.

Controls Smoke Migration

Prevents cold smoke from passing through meter openings in corridors and communal areas, protecting escape routes and supporting compartmentation.

Supports Fire Strategy Compliance

Tested to BS EN 1634-3:2004 with full documentation supplied for Building Control submission and fire strategy compliance.

Fire + Smoke Combination

Combined fire and smoke rated options available for projects requiring both fire resistance and smoke containment in a single overbox.

Fits All UK Meter Types

Standard sizes for gas, electric, and water meters. Bespoke sizes available for non-standard installations and multi-meter configurations.

Simple Installation

Designed for straightforward installation in new builds and refurbishments. Installation guidance included with every unit.

Fast UK Production

Manufactured in-house at our Nuneaton facility. Standard and bespoke orders delivered within 3 to 5 working days. No imports, no delays.

Sectors & Environments

Where Smoke Tested Meter
Overboxes Are Used

Used wherever smoke control is essential to life safety and building compliance.

Residential Corridors

Corridors and riser positions in blocks of flats and apartment developments.

Smoke tested meter overboxes in high-rise buildings

High-Rise Apartments

High-rise apartment developments where smoke compartmentation is critical.

Smoke tested meter overboxes in healthcare buildings

Healthcare & Education

Healthcare and education environments with stringent smoke control requirements.

Commercial Buildings

Commercial buildings and retail units with utility distribution areas.

Refurbishment Programmes

Refurbishment programmes requiring upgraded smoke protection at utility penetrations.

How It Works

From Enquiry to Delivery

A streamlined process designed for speed and precision, from initial consultation to site delivery.

Consultation

Discuss your project requirements, including meter dimensions, fire ratings, lock types and finishes with our technical team.

Specification

We provide a detailed specification sheet, technical drawings, and a competitive quotation within 24 hours.

Manufacture

Every overbox is CNC-cut, formed, assembled and powder-coated in our UK facility with full quality traceability.

Delivery

Nationwide delivery within 3-5 working days. All units palletised and protected for safe transit.

Common Questions

Smoke Tested Meter Overbox FAQ

Everything you need to know about specifying smoke tested meter overboxes.

What does smoke tested mean for a meter overbox?

A smoke tested meter overbox has been independently tested to confirm it prevents cold smoke from passing through the enclosure and into adjacent compartments. This is critical in corridors and communal areas where smoke migration through meter openings can compromise escape routes and the building's overall fire strategy.

What standard are smoke tested meter overboxes tested to?

Our smoke tested meter overboxes are tested to BS EN 1634-3:2004, the European standard for smoke control in doorsets and shutters. Products achieve Sa or S200 classification depending on the measured leakage rate. Full test reports and compliance documentation are supplied with every order for Building Control submission.

Can I get a combined fire and smoke rated meter overbox?

Yes. We manufacture combined fire and smoke rated meter overboxes that provide both fire resistance (tested to BS 476 Part 22) and smoke containment (tested to BS EN 1634-3:2004) in a single unit. This is the most common specification for corridors in residential buildings where both fire and smoke compartmentation are required by the fire strategy.

What types of meters fit inside a smoke tested overbox?

Our smoke tested meter overboxes accommodate gas, electric, and water meters in all standard UK sizes. For non-standard installations or multi-meter configurations, we manufacture bespoke sizes to your exact dimensions while maintaining full smoke test certification and performance.

How quickly can smoke tested meter overboxes be delivered?

Standard smoke tested meter overboxes ship within 3 to 5 working days from our Nuneaton manufacturing facility. Bespoke sizes follow the same lead time. We manufacture everything in the UK, so there are no import delays or extended lead times to worry about.

Are custom sizes available for smoke tested meter overboxes?

Yes. We manufacture bespoke smoke tested meter overboxes to your exact dimensions. Custom units maintain the same smoke test performance and certification as standard sizes. There is no minimum order quantity, and bespoke orders are typically delivered within the same 3 to 5 working day lead time.

Smoke Control That Protects Lives.