Extract Fan Testing

Fully accredited Extract Fan Testing to comply with Building Regulations

SEA provide fully accredited Extract Fan Testing which is a necessity to comply with Building Regulations.

Extract fan testing ensures that the installed fans in rooms such as Bathrooms, Utility and Kitchens are performing the required air-flow rates to meet compliance with Part F of Building Regulations and to guarantee a healthy and comfortable internal environment for the dwelling’s occupants.

The procedure for an extract fan testing

The Air Testing assessment in detail


The Domestic Ventilation Compliance Guide (DVCG) published in 2010 gives the approved procedures for measuring air-flows and reporting the results for Systems 1 to 4 described in Approved Document F 2010. Our BPEC qualified engineers use a calibrated hooded anemometer to measure and record the air-flow rates from the extractor fans.


Following the fan testing procedure we will provide you with an Inspection Checklist and Part F Air-flow Measurement Test Sheet for each dwelling as required by Building Control to demonstrate compliance with the required air-flow rates in Approved Document Part F.

Speak to a qualified expert today

We believe in making things easier for our clients by providing a cost effective ‘one stop shop’ for building compliance.

Why Ventilate?

The main task of ventilation is to remove polluted indoor air from a building and replace it with fresh outdoor air. Polluted air includes moisture from washing and cooking, Carbon Monoxide from combustion appliances and smoking, Volatile Organic Compounds from aerosols, furniture and carpets and Allergens from house dust mites. On average each household member produces 5 litres of moisture per day.

Why do I need Extract Fan Testing?

Regulation 42 of the Building Regulations 2010 requires builders and developers to provide evidence of the testing of all fans to the Building Control Body (BCB) within 5 days of the test being carried out.


Our approach is to provide an excellent customer experience through efficiency, reliability, knowledge and professionalism.

WW Martin

"We have worked closely with Tom & Kevin on many commercial and residential projects for both SBEM & SAP’s and onsite air and sound test and find their approach practical in meeting our objectives."

David Barker

Red Key Concepts

"We have been delighted with the wide range and highly professional services that SEA Building Compliance have offered to us in a selection of our development projects. Specifically they have provided us with a high quality SAP, SBEM, air and sound testing solutions within our residential and commercial builds and at every stage of the build to ensure that we achieve compliance."

Charley Gremo-Gilham

Kudos Surveying

"I just wanted to thank you and your team for the excellent service we and our clients have received from SEA Building Compliance Limited.    We particularly appreciate all the hard work you all put in to meet our sometimes ridiculous deadlines and of course all of the solutions you put forward to assist the projects. This is a tribute to the quality of your team and the services provided, we have    enjoyed working with you all and the opportunity that has presented to use your    extensive range of professional services to provide solutions to our technical problems.    Once again, thank you and all of the team that have worked on our    projects    and we hope to continue working closely together in the future. "

Matthew Gerlack

BBS Construction Ltd

"We have appointed SEA Building Compliance on several housing and commercial projects and have always found them to be professional and very knowledgeable in building compliance testing, consultation and certification. We have no hesitation in recommending them to others and continue to utilise their expertise on our own developments. "

Matt Brickland
Managing Surveyor

Ashford Borough Council

"We are proud to have had a long association with S.E.A Building Compliance Ltd who we use for thermal calculations as well as sound and air testing. This supplements the building consultancy and building regulation services we offer making a much more complete ‘one stop shop’ for our clients. As such S.E.A are considered to be part of our team. We find the service to be extremely professional and approachable and at a value that results in no need for us to look elsewhere."

David Harrison
Building Control & Quality Place Making Manager

Latest projects

Browse some of our latest projects below

Speak to an expert about your compliance and testing requirements