Ventilation Testing Services | Part F Compliance Specialists

Ventilation Testing

What Is Ventilation Testing?

Ventilation testing measures how effectively extract fans and mechanical ventilation systems remove stale, humid or polluted air from a property. It ensures that airflow rates meet the minimum performance standards set out in Part F.

In simple terms, ventilation testing checks:

Whether the property has adequate air extraction
Whether installed fans achieve their required airflow rate (in litres per second)
Whether mechanical systems are balanced correctly
Whether airflow is consistent with design expectations

Good ventilation prevents condensation, mould growth and poor indoor air quality – all of which can lead to structural damage and health problems.

Why Ventilation

Why Ventilation Testing Is Required

Modern homes are built with higher levels of insulation and airtightness, which improves energy efficiency but also traps moisture. Without proper ventilation, properties can quickly suffer from dampness, mould and poor air quality.

Ventilation testing ensures:

Compliance with Building Regulations Part F
Healthy indoor air quality for occupants
Proper removal of excess moisture from kitchens and bathrooms
Efficient operation of mechanical ventilation systems
Compatibility with airtight construction standards

A ventilation test certificate is usually required by Building Control before final sign-off.

Why Choose

Why Choose Home Energy EPC for Ventilation Testing?

Our acoustWe offer a fast, professional and hassle-free testing service tailored to the needs of developers and builders.ic testing specialists provide a professional, streamlined service designed for developers, builders, architects and landlords.

What Makes Our Service Stand Out:

Qualified and experienced ventilation testers
UKAS-recognised equipment and methods
Fast appointments with minimal disruption
Clear, easy-to-understand results
Pass/Fail guidance and practical advice
Multi-plot discounts for developers
Combined testing packages (Air Pressure + SAP + Sound Testing)

We work with projects of all sizes, from single self-builds to large multi-unit developments.

Types

Types of Ventilation Systems We Test

We test all ventilation systems included in Approved Document F, including:

Intermittent Extract Fans (System 1)

Common in bathrooms, kitchens and utility rooms. These fans must achieve specific extract rates.

Continuous Mechanical Extract (System 3)

Also known as MEV systems, which continuously draw air from wet rooms.

Continuous Mechanical Ventilation with Heat Recovery (MVHR) – System 4

Whole-home mechanical ventilation that recovers heat from extracted air.
Our engineers are trained to assess, measure and certify all system types.

Works

How Ventilation Testing Works

Ventilation testing is quick, non-invasive and straightforward when carried out by trained specialists.

Visual Check of the Installation

We check the installation is complete, ducting is correctly installed and terminals are accessible.

Airflow Measurement

Using calibrated equipment such as anemometers and flow hoods, we measure airflow rates at each extract point.

Comparison Against Part F Standards

Each room has a minimum airflow requirement. We confirm whether your system meets these levels.

System Adjustment (If Needed)

In many cases, small adjustments can improve airflow and help the property pass the test.

Certification Issued

You receive a ventilation test certificate for Building Control, including readings and compliance confirmation.

Most ventilation tests are completed within 20–45 minutes depending on the number of fans.

Testing

How to Prepare for Ventilation Testing

To ensure accurate results, the following should be completed before testing:

Fans fully installed and powered
All ducting connected and sealed correctly
External vents or grilles fitted
Windows and doors installed
Property clear of construction dust and debris

Proper preparation ensures smooth testing and reduces the risk of failures.

Common Causes

Common Causes of Ventilation Test Failure

Failures usually occur due to installation issues or airflow restrictions.

Typical issues include:

Crushed or kinked ducting
Excessively long duct runs
Poor-quality flexible ducts
Blocked or incorrectly fitted external grilles
Incorrect fan selection or power rating

We provide clear advice on how to resolve these issues quickly.

Offer

Pricing

Our pricing is competitive and based on the number of fans or ventilation systems tested. We offer:

Single-plot testing
Multi-plot discounts
Combined packages with SAP EPC, Air Pressure & Sound Testing

let’s make it shine!

Book Your Ventilation Test Today

Whether you’re building a new home, converting a dwelling or managing a multi-unit development, Home Energy EPC provides professional ventilation testing to ensure full Part F compliance.

info@homeenergyeepc.co.uk

0121 000 0000

Book your ventilation test today and keep your project on track for Building Regulation approval.