The Air Tightness Test Itself… What’s involved?

Equipment - Depending on the size, complexity and height of the building, either large trailer-mounted fans or smaller electric ‘blower-door-fans’.

Duration - Most tests and any post-test leakage diagnosis are completed in a day, or less.

Conditions - Buildings must be virtually complete and calm weather conditions

Why Stroma?

  • Market Leader
  • Full accreditation (UKAS, ATTMA, BINDT)
  • Consulting Experience
  • Contracting capability
  • Cross-discounts for Testing/Consulting if Stroma Contracting used on same project One-stop-shop for SAP, SBEM, EPC, and Acoustic testing services
  • National coverage (inc. Ireland & Scotland)
  • Competitive prices (we will not normally decline on price)
  • Service levels

Service levels

  • Fast report turnarounds 24/48 hours
  • Envelope Calculations included
  • All-day audits, with report delivered on site
  • Initial briefing meeting
  • Thorough site inspection
  • Very detailed, fully referenced report written on site
  • Same-day handover for full comprehension
  • Free of charge post test audits after failed tests – only reports charged extra
  • Fan hire service
  • Component testing
  • Project management of more challenging jobs

To take a look at an average day as an air tightness tester then click here, if you have any questions regarding air tightness testing then please feel free to call us on 0845 621 22 22 or alternatively email us at This e-mail address is being protected from spambots. You need JavaScript enabled to view it

  • Meet regulatory requirements from the initial stages of a development with a design review workshop
  • Stroma is an active member of the Institute for Sustainability in the Thames Gateway area

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  • Stroma provides compliance testing and consultancy for the UK's top 10 contractors
    [Construction News Top 100, November 2008]
  • Stroma is a UKAS accredited air leakage and acoustic testing body
  • Stroma is developing pioneering new techniques for determining the effectiveness of sustainable, remedial building works

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  • Stroma has successfully tested more than 5,000 structures, from simple dwellings and single enclosures through to complex public buildings and vast warehouses
  • Stroma delivers CPD on the 2010 Part L regulations for Wates Construction
  • Stroma participated in Shred-it’s recycling program and saved 28 trees from destruction in 2010
  • Use the equipment calculator – the quick and easy way to determine your requirements
  • Stroma has calibrated over 350 different fans and manometers
  • Stroma has been a door fan distributor for over 4 years
  • What is the RRO?
  • What type of building needs a fire risk assessment?
  • Stroma launches fire risk assessor training course
  • Fire risk assessments for all non-domestic buildings
  • Third party accredited Stroma Contracting specialises in the remedial fire protection and fire stopping works needed for RRO compliance
  • PART L The Impact on Air Tightness... Rob Coxon outlines the targets in air-tightness testing in new homes.
  • Put money saving at the top of your agenda... Reduce your energy bills and your carbon footprint
  • Airtight buildings.... Waste less energy and cause less CO2
  • Buildings don’t need to “breathe”, only people do! Therefore… “Build Tight – Ventilate Right”
  • The New Part L1A & L2A 2010 Air-Tightness Requirements
  • Fundamental Approaches Designing for Air-Tightness Under Part L, establish what the air-tightness target has to be....
  • All air-conditioning systems with an effective rated output of more than 12kW must be regularly inspected by an energy assessor every 5 years, since the 4th January 2011.
  • Stroma Head Office, Pioneer Way,
    Castleford, West Yorkshire, WF10 5QU
    Telephone: 0845 621 11 11  
    Email: info@stroma.com
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