Air Tightness & Ventilation Testing

PAS/ATTMA compliant testing for new builds and other projects in the South West

Call us: 0800 999 1251
Book an air test

ATTMA trained technicians | Pulse & fan testing available | 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

PAS / ATTMA compliant, builder-friendly testing for new builds, extensions, conversions, self-builds and commercial premises. Small builders and single plots welcome.

Our Features

We specialise in helping:

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

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

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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.

    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 communication, flexible on dates and reports that our local Building Control are happy with. Being able to point clients to a reliable tester makes our lives much easier."

    T. Davies Architect, Plymouth

    "As a self-builder I wasn’t sure what to expect.
    Everything was explained in plain English and we passed first time. The whole process was much easier than I’d anticipated."

    Self-build client, Truro

    "We needed a single new build tested at short notice. TargetCO2 gave us clear prep advice, came out when they said they would and the certificate was with Building Control the next day. We’ll be using them on all our future plots."

    M. Harris Builder, near Exeter

    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
    Make a Test

    Air Tightness Testing in Devon & the South West

    From £350
    Certificates within 24–48 hours

    Send Request

    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.