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Why would you use us?

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90% of airtight issues diagnosed

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Get better air test results

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"ATSPACE helped to find the air leaks in our home and improve the air tightness all by an air pressure diagnostic test!"

Michelle Hubbard

Leaks found,
improvements made =
Test result obtained

We’ve Got You Covered

With our network of
Engineers across England
& Wales

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How Much?!

At ATSPACE, we like to be as transparent as possible. That’s why we’ve provided a breakdown of our costs for every service we provide. Simply click on the filter to find out what you can expect to pay when you select ATSPACE as your building compliance partner.  


Residential Diagnostic Air Leakage Testing

Site Based Service

To ascertain current air leakage performance, give recommendations and a photographic report.
1st Plot Cost Additional Plots - Same Visit
£187 £93

Cost Variances - Super Remote Locations - No. Of Test Carried Out Per Day

Commercial Diagnostic Air Leakage Testing

Site Based Service

To ascertain current air leakage performance, give recommendations and a photographic report.
*Envelope Size
(Envelope is the conditioned surface area of the External insulation line of the building, including floor walls and roof)
Small 0-2000m² £243
Medium 2000m-3000m² £317
Large -3000-6000m² £463
Extra Large - 6000-9000m²
Extra Extra Large - 9000-12000m²
Super Size 12000m² +

Cost Variances - Super Remote Locations - No. Of Test Carried Out Per Day

Additional Bolt On Service(s)
Commercial Air Leakage Testing -
Site Based Service
From £243
Air Leakage Drawing Review -
Desk Based Service
From £287
Diagnostic Smoke Leakage Testing -
Site Based Service
From £237
Onsite Design Advice - Site Based Service From £117



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Please get in touch with the A-TEAM on 0345 6465 454

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Passive House Air Testing:
Passive House Standard is a voluntary standard established in Germany in 1990. This standard is there to ensure that the ecological footprint of your build is as low as possible.

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Residential Air Testing:
Formal air pressure testing once the build has been completed to meet Part L of the build regulation requirement. Use in conjunction with our diagnostic air testing service, the combination will not only save you money, time, and probably a few less grey hairs come the formal air test day.

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Air Tightness Drawing Review:
To pass first time, and to build the best possible structure, you need to know exactly how to build an air tight structure.

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Ventilation Flow Rate - Commissioning & Balancing:
Ventilation Testing refers to Part F of the Building Regulations. Ventilation Testing goes hand in hand with air pressure testing. You quite simply can't have one without the other.

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Uncomplicated Compliance

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100% Building Control Certified
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DBS Certified - Feel Safe
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Level Certified 1 & 2 ATTMA & IATS

Diagnostic Air Pressure Testing is designed to ensure your build is airtight, and it is there to measure the extent of uncontrolled air leakage which is escaping from the fabric of the build. It is always better to get the help and advice from the experts at the earliest possible stage. However, the air testing diagnostics can provide clear answers to why and where your build is leaking air from. You will be informed on site with practical advice on how to how to remediate any issues.

Our expert engineers all have a wealth of knowledge in this area and know exactly how to get the best from a build. If you’ve had problems with your air test, the air pressure diagnostics can get you back on the right path.

There are many names for an air test, such as Air Testing, Air Leakage Testing, Air Pressure Testing, Air Permeability Testing or even just the basic Air Test. Did you know that failing to maintain air tightness can lead to up to 40% heat loss?

If you’re building traditional brick and block or timber frame, this is a great tool to use once the property is water tight with your external windows doors fitted and the top floor plasterboard ceiling is in place to diagnose leakage areas prior to the walls being dry lined and covered up. With timber frame it is imperative to make sure your VCL (vapour control layer) is sealed, airtight prior to the walls being covered or there’s no real point in having the membrane in place.

If in doubt get on the phone to discuss your concerns as early as possible.  

Why not call us today?

Diagnostic Air pressure testing, Mastering air leakage at the right stage of you building saving £££ in remedial measures.

Hard Air Targets. NOT a Problem, Book before any walls are covered so we can Diagnose air leakage FAST.

FAST Effective Diagnostic Air Pressure Testing. Eliminate Leakage, Build better, Save on Remedial Costs.

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Air Pressure Diagnostic Testing will show you exactly where the vulnerable points are in your build when it comes to air leakage. The way we do this is similar to how we conduct an air test. However, with diagnostics, the reason why we are undertaking the test differs. Ultimately, it's so we can define the areas of your build that need to be improved prior to the house being finished.

 As with all compliances, it is always easier to rectify any problems at the earliest possible stages. Ideally, I would advise getting help at the design stage of your build, with air tightness at the forefront of your mind. This way, you won't have to compromise on air leakage, and you won't have any costly fixes to undertake. I am aware that air pressure diagnostics aren't always carried out because you have issues. You might want to know where the leakage points are, or you may want to ensure that you're getting the best from your build. Whatever your reason, diagnostics can be great for your construction.

 When we carry out the air pressure diagnostics test, we look to create a pressure differential within the property. When the pressure difference is big enough, we can feel the air leakage with our hands, or even see it with a smoke pen or thermal imaging camera.

If you're looking to get your Air Pressure Diagnostics test secured, or of you have any other questions please don't hesitate to ask.

What can we offer you?

  • • Same day quote

  • • Fast results

  • • Expert knowledge

  • • Years of experience

  • • Largest knowledge bank in our industry

Paul Whiffin ATSPACE
Managing Director


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Diagnostic Air Pressure Testing - Questions Answered

How is an Air Pressure Test Performed?

Air pressure tests are common tests performed on both commercial and residential buildings. Knowledge is power and knowing exactly what happens during these tests can only help ensure you get the best from your build.

Do I Need an Airtightness Test?

If you're building a new build property the answer is yes. If you're building a commercial premise over 500 square metres, the answer is also yes, you do require an airtightness test.

Can I Save Money on my Bills by Achieving a Lower Air Test Score? 

The answer is simply yes, you can. If we can keep heat in your build, you won't have to work your systems so hard. If we can stop the infiltration of cold air from uncontrolled measures, such as holes and gaps in your fabric, then yes, we can keep heat in the home longer, which ultimately means lower running costs. Want to know more?

Case Studies

Take a look at some of the many ways we’ve helped our clients achieve building compliance success on their projects.

"We can't thank ATSPACE enough, they came out and helped us to improve the air tightness of our build!"

Katie Gill

Improved air tightness,
less carbon emissions =
Lower energy bills

"Diagnosing the air leaks helped us to secure all the gaps and get a better air tightness result! Really happy!"

Luke Harle

Gaps in the fabric of the build located =
Part L signed off

Customer Scope

Bring All Your Compliance Under 1 Roof. No work is Sub- Contracted out

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Whether you’re working on a residential or commercial development, rely on us to take care of all your design, consulting, compliance and certification requirements, whatever the stage of your project. When everything is under one roof, why go anywhere else?

Design & planning, part built, as built or energy certification, you can be confident that your project will meet compliance every step of the way. All work is done in-house by our team of dedicated engineers and energy assessors, so you can be sure of an efficient, thorough and top-quality service. To find out more about our multi-disciplinary service offering, simply select the service you require by clicking the icons below. In a rush? Contact us now and get put straight through to a technical expert who will handle your enquiry efficiently.

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