If your project in Exeter needs air permeability testing, we can help.
Our service measures uncontrolled air leakage so you can understand how your building is performing and whether further sealing work is needed before sign-off.
Our testing and reporting service is suitable for projects across Exeter and surrounding areas.
Get in touch today for a free, no-obligation quote tailored to your property.













A reliable service for developers, builders and property owners who need fast, accurate results.
Testing helps identify uncontrolled air leakage that can affect energy efficiency and comfort.
Suitable for residential properties, mixed-use schemes and light commercial units.


Testing arranged around project timelines wherever possible to reduce disruption.
Reporting is delivered in a format suitable for onward review and compliance records.
A responsive service with practical guidance if remedial sealing work is required after testing.
Air leakage testing pricing in Exeter is generally based on building size, use type and how straightforward the test setup is.
For an accurate quote, pricing should be based on the property size, building use and the stage your project has reached.
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For many projects, air tightness testing becomes a key checkpoint before completion. The result provides a practical benchmark for how well the envelope has been sealed and whether further attention is needed.
Our approach focuses on straightforward testing, dependable reporting and practical communication at every stage. We work with residential and commercial properties and aim to make the process simple from booking through to the final report.
Where further improvements are needed, the test result provides a useful basis for prioritising remedial works before re-testing or submission.

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The cost of air tightness testing in Exeter depends on the type of building being tested, the overall size of the property and how easy it is to access and prepare the building for the test. A compact residential property will usually require less time on site than a larger commercial unit or multi-plot development.
Testing provides value beyond a pass or fail outcome. It helps reveal whether uncontrolled air leakage is likely to affect energy efficiency, comfort and the overall quality of the completed envelope.
By arranging testing at the right stage, project teams can reduce the risk of late surprises and avoid more expensive remedial work after handover deadlines become tight.
A clear measured result can also make project communication easier, because everyone involved is working from the same tested information rather than assumptions.

Built for Real Projects
The service works well for developers, builders and property owners who need practical answers quickly.
Less Guesswork
A measured result helps remove uncertainty around leakage performance.
Simple Reporting
The report is designed to be easy to review, share and act on.
Better Decision-Making
If changes are needed, the test result gives the team a stronger basis for deciding what to do next.

Can’t find the answer you’re looking for? Please contact with our customer service.
An air tightness test (also known as a blower door test) measures how much air leaks out of a building through gaps and cracks in the structure. A fan is temporarily fitted into an external doorway to pressurise the building, allowing engineers to measure the rate of air leakage. This helps determine the building’s energy efficiency and compliance with Building Regulations.
Yes. Air tightness testing is required under Part L of the Building Regulations for most new dwellings and commercial buildings in the UK. The test ensures the building meets the required energy efficiency standards before it can be signed off by Building Control.
Air tightness testing should be carried out towards the end of construction, once the building envelope is complete but before final finishes are installed. This allows any air leakage issues to be identified and fixed if necessary.
If a building fails the test, the tester will usually identify the main areas where air leakage is occurring. These gaps can then be sealed before the building is retested to achieve compliance with the required air permeability target.
Can’t find the answer you’re looking for? Please contact with our customer service.