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Air Testing & Leakage
We can offer additional services at discounted rates along side our tests! These are Sound Testing and Part F. Ask our Consultants for more

Point of Reference
10 dBA is the sound level of normal human breathing. To put it into perspective, thunder is a whopping 120 dBA...more
Part L1A
Conservation of fuel and power IN NEW DWELLINGS

Air Testing is sometimes referred to as Domestic Air pressure tests, Domestic Air tightness tests, Domestic Air tests, Domestic Air pressure testing, Domestic Air tightness testing, Domestic Air leakage testing.
Air Leaking Testing Across the UK
How Many Properties Need An Air Tightness Test?
The number of tests required are as follows:
- 4 or less properties of the same type: one test needed per type
- More than 4 but less than 40 dwellings of a type: at least two tests of each type
- More than 40 properties of a type: 5% of each type UNLESS the first 5 get a passing score - then this can be dropped to just 2%
When Should The Test Take Place?
The air leakage should be completed once the building is completed. All doors and windows in place, all skirting boards sealed, traps filled with water and any penetrations through the envelope of the building need to be sealed. Please find checklist within the downloads section of the website which provide a comprehensive list of requirements. People who follow this checklist have a much higher change of passing the air test first time.
What Does An Air Leakage Test in the UK Involve?
An air test involves placing a large fan, or several fans, to an opening within the property; usually a doorway. The fans will increase and decrease in speed that will in-turn change the building's air pressure and record the results. Please note: an air test cannot be carried out if wind speed is more than 13mph. 3 metres per second is the ideal wind speed when undertaking an air test in the UK.
There should be no outside access once the test has begun for approximately 90 minutes so plan accordingly. Workers can still do their job inside the property, within reason, though may feel some discomfort due to the noise of the fan and the draught that will be felt throughout the building.
During an air test in the UK the pressure of the building will be tested and as such all windows and doors that lead outside must be securely closed to avoid them swinging open and the test being abandoned. Similarly, all internal doors should be wedged open to avoid being slammed shut. Furniture will not be affected during the test, but smaller items such as paper must be held down or removed completely so they're not blown about.
What Air Permeability Rating Do I Need?
A passing score in the UK is 10 m³/(h.m²) for an air permeability rating which resembles the amount of uncontrolled air that's leaking from the dwelling. Should the test fail, our air tightness team will help you identify where the leakages are happening in the hope that a passing score will be achieved after a re-test.
Why E2 Consultants?
For a quote or for more information, call our air tightness / pressure testing consultants in the UK on 0800 043 8100 or email us on @e2consultants.co.uk
All new buildings in England and Wales have had a mandatory requirement since 2006 (2010 in Scotland) that domestic and commercial buildings, must have a passing air leakage certificate before the property can be passed off by building regulations.
At E2 Consultants we offer Air Permeability Testing throughout the UK and surrounding areas. Our experienced air permeability consultants will also be happy to offer advice on the best ways to gain your target rating.
E2 Consultants offer a range of services from desktop reviews of drawings to pre test inspections on site to advice on air tightness, how to improve and what needs to be completed and sealed for the testing to take place successfully.
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For further Air-Pressure-Testing information for your area, be sure to check out Air-Testing-.co.uk.
Our other services include:
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Air Pressure Testing can also be known as:
Air Tightness Testing, Domestic Fan Pressure Testing, Domestic Air Tightness Testing, Domestic Air Testing, Domestic House Leakage Testing, House Leakage Testing, Air Testing, Domestic Air Integrity Testing, Air Integrity Testing, Air Leakage Testing, Fan Pressure Testing, Domestic Air Pressure Testing, Domestic Air Leakage Testing,
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Company No. 06728970
In Area D
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