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Air Tightness & Ventilation Testing

PAS / ATTMA compliant, builder-friendly testing for new builds, extensions, conversions, self-builds and commercial premises

Call us: 0800 999 1251
Book an air test

ATTMA trained technicians | Small builders and single plots welcome | Building Control accepted certificates

Trustpilot rated 4.9 / 5
Based on 85 reviews
Google rated 5.0
Based on 27 reviews

Air Tightness Testing Devon, 
Cornwall & Somerset

Part L Air Tightness & Part F Ventilation Testing for Building Control Approval.

Our Features

We specialise in helping:

  • Small and medium-sized builders
  • Self-builders
  • Architects and building surveyors
  • Developers

Typical projects include:

  • New build houses (single plots and small developments)
  • Extensions and refurbishments
  • Flat conversions and change-of-use projects
  • Retests following a failed air test elsewhere

Book a test










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    What is Air Tightness Testing?

    Air tightness testing measures how much uncontrolled air leaks through the fabric of a building. Using specialist Pulse equipment, we measure air leakage through gaps, joints and construction details in the building fabric.

    The result shows how efficiently the building retains heat and whether it meets the required standards for Building Regulations compliance. For new builds this test is typically required under Part L, while existing buildings may use air testing to demonstrate improvements in energy performance or for sizing air source heat pumps.

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    A successful test confirms the building performs as designed, helping reduce heat loss, improve comfort and support lower energy costs.

    Fast response. Clear communication. No obligation.

    Send Request

    How it works

    1.

    Request your quote – use the form, or call 0800 999 1251

    2.

    We confirm price & availability – fixed price, test date and preparation guidance

    3.

    We carry out the test – on-site testing with immediate feedback

    4.

    Certificate within 24-48 hours – ATTMA-compliant certificate accepted by Building Control

    What our customers think

    Discover the experiences of our satisfied customers! Read their testimonials to learn how our services have made a positive impact on their businesses.

    "Great service from Ben. Professional communication, prompt service and a report sent out to us and registered with the required body all on the same day. A pleasure to do business with. I would wholeheartedly recommend."

    Liz & Nick Trustpilot

    "Recently used Target CO2 to undertake an air test on a really unusual property. We needed the test undertaking urgently and the team at Target were quick to act! Communication was great which in the past with other companies has been a massive negative. People that pick up the phone and respond is so important. 5 Stars all round! Would highly recommend.
    "

    Rich Gardner Trustpilot
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    What to expect

    We bring our portable Pulse air testing system to your site to conduct low-disruption tests. The system measures air leakage across whole buildings or individual rooms without penetration or temperature changes.

    The Pulse Advantage:

    • Accurate, repeatable measurements
    • Minimal disruption on site
    • Suitable for large spaces and complex layouts
    Book a test

    Air Tightness & Ventilation Testing across Devon, Cornwall & Somerset

    From £350
    Certificates within 24–48 hours

    Send Request
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    Air tightness testing across Devon, Cornwall and Somerset with flexible local availability and Building Control compliant certificates issued within 24–48 hours.

    Tests are carried out using calibrated equipment to the relevant standards, with clear preparation guidance provided beforehand to help achieve a high pass rate and avoid repeat visits.

    Reports are suitable for Building Control and SAP assessors, with Pulse air tightness testing available where appropriate. Multi-unit developments benefit from discounted rates for multiple dwellings on the same site.

    Coverage includes Exeter, Plymouth, Torquay, Barnstaple, Truro, Newquay, St Austell, Bodmin, Taunton, Bridgwater, Yeovil, Bristol and Bath, with testing also available outside the South West where required.