Fast, Accredited Part F Ventilation Testing & Certification
Securing your final Building Control sign-off shouldn’t be stalled by delayed paperwork or failed airflow inspections. If you are looking for accredited Part F ventilation testing across London and the South East our expert engineering team provides fast, hassle-free Part F ventilation testing and extractor fan calibration across London. We use precision, UKAS-calibrated equipment to ensure your extractor fan testing for building regs or complete ventilation testing and commissioning passes compliance on the very first visit. Whether you are a property developer handing over a multi-plot site, an installer balancing a complex MVHR system, or a self-builder ready for your final inspection, we deliver the official Part F compliance checklist and digital certification you need to keep your project moving forward without delay.
Need an Extractor Fan Flow Rate Testing Certificate for Building Control?
Commercial & Residential Airflow Testing Services
- What’s included: Volumetric testing of all standard intermittent extract fans (Kitchen, Bathrooms, WCs, Utility).
- Deliverable: Official Part F compliance checklist and digital certificate.
- Price: From £35+ VAT per property of undertaken as part of our air tightness and sound testing package
- What’s included: Complete mechanical flow balancing from the furthest terminal inward. System optimisation to ensure supply and extract match.
- Deliverable: Full air flow report for Building Control.
- Price: From £195 + VAT per property of undertaken as part of our air tightness and sound testing package
- What’s included: Full Part L Air Tightness Test (Blower Door Test) + Full Part F Ventilation Testing.
- Price: From £295+ VAT (Save up to 20% on separate booking fees)
HOW TO PASS FIRST TIME
Your Part F Compliance Checklist: How to Pass First Time
- Check the Door Undercuts: Every habitable room and wet room must have a minimum 10mm gap above the finished floor level to allow air transfer when doors are shut.
- Power & Wiring: Ensure all fans, continuous extract units, or MVHR systems are fully wired up, commissioned, and running on their normal/trickle speeds.
- Unhinder Vents: Ensure window trickle vents are permanently unsealed, functional, and fully open.
- Clean Filters: If testing an MVHR unit, ensure the filters are completely brand new or thoroughly cleaned so they do not choke the air supply.
Part F Extract Vent Testing Checklist ▶
FAQ – FREQUENTLY ASKED EXTRACTOR FAN TESTING QUESTIONS
Ventilation & Extractor Fan Testing: Your Questions Answered
Q: What are the minimum extract rates for a bathroom and kitchen under Part F?
Q: What is the difference between an air tightness test and a ventilation test?
Q: Does an MVHR system need a Part F test?
A: Yes. Mechanical Ventilation with Heat Recovery (MVHR) systems must be professionally balanced and commissioned, with the final volumetric flow rates recorded on a dedicated commissioning report for Building Control.
Q: What is Part F ventilation testing and why is it required for Building Control sign-off?
A: Part F ventilation testing ensures the controlled, intentional movement of clean air through fans and vents to meet the current ventilation standards. It is a mandatory step before final Building Control sign-off, and our accredited engineers use UKAS-calibrated equipment to verify airflow rates so the project can pass compliance on the first visit.
Q: What are the minimum extract rates for a kitchen, bathroom, and WC under Part F?
A: Under Part F, intermittent extract fans must achieve a minimum boost rate of 13 l/s in a kitchen (if adjacent to a hob), 8 l/s in a bathroom or utility, and 6 l/s in a separate WC.
Q: Does an MVHR system require a Part F test?
A: Yes. Mechanical Ventilation with Heat Recovery (MVHR) systems must be professionally balanced and commissioned, with the final volumetric flow rates recorded on a dedicated commissioning report for Building Control.
Q: How is Part L air tightness testing different from Part F ventilation testing?
An air tightness test (Part L) measures how much air leaks through gaps in the building fabric, while a ventilation test (Part F) measures the controlled, intentional movement of air through fans and vents to ensure the building is safe and healthy to live in.
Q: What ventilation testing packages are available and what do they include?
A: Package 1 Standard Extractor Fan Testing includes volumetric testing of standard intermittent fans with an official Part F compliance checklist and digital certificate, starting from £35+ VAT per property. Package 2 MVHR Balancing & Commissioning covers complete mechanical flow balancing with a full airflow report, from £195+ VAT per property. The Developer’s Favourite Combined Air Tightness & Part F Vent Testing includes a full Part L air tightness test plus full Part F testing, from £295+ VAT, with potential savings when booked together.
Ready to Book Your Ventilation Testing Near Me?
We can help with your Ventilation Testing in London
We have significant experience in carrying out Part F extract ventilation testing and other compliance standards. Our team will always provide a firm quotation and helpful extract vent testing checklist to help you prepare for the testing, prior to us visiting site to carry out this work.
What happens after the Part F Ventilation Test Visit?
After the indoor air quality test, we will send you a detailed test report. This shows you which room have been tested, along with the Part F target as stipulated in Building Regulations Part F. Finally your results will be shown in l/s against the Part F target with a final Pass/Fail column.
Call or email us today about Part F Vent Testing . We are here to help! Please call us on 01525 303905 or email us on info@aptsoundtesting.co.uk about our Indoor Air Quality Testing services. We are here to help! Alternatively, please visit our contact page here.