Navigating Air & Sound Testing (FAQs)

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Getting your final certificates shouldn't be a headache. To help your upcoming projects hand over on time and on budget, our technical team at UK Building Compliance has answered the top questions we get from site managers.

💨 Air Permeability Testing FAQs

Can people stay inside during the test?

  • Yes, but no one can enter or leave during the process.
  • The building must remain completely sealed for accurate pressure readings.

Can I tape over the plug sockets?

  • No, this violates Part L and ATTMA regulations.
  • Only trickle vents and mechanical fans can be taped.

How long does an air test take?

  • Allow 45 to 60 minutes per plot for setup and calculations.
  • The actual fan run takes only 10 minutes.
  • Bonus: We include a 2-hour window for multiple re-runs to seal minor faults.

    • What happens if the building fails the air test?

  • We use smoke pencils to locate leaks immediately.
  • Our technicians guide your team on sealing issues for a same-day pass.
  • Major structural failures will require a scheduled site re-visit.

    • When is the best time to book the air test?

  • Book when plumbing and electrical services are fully commissioned.
  • Ensure skirting boards are sealed and all external doors/windows are fitted.
    • Do we need access to next door for sound testing?
    • Yes, access to the adjoining property is mandatory.
    • We must place noise sources on one side and measure from the other.

    Do the properties need to be fully completed?

    • Structural walls, floors, doors, and double glazing must be fully fitted.
    • Do not install carpets, flooring overlays, or white goods yet.

    Does the site need to be quiet during the test?

    • Yes, strict silence is required to measure background acoustic levels.
    • Noisy activities like drilling or groundworks must stop temporarily.
    🛠️ Complete Compliance: One Supplier, Zero Delays

    Why juggle multiple contractors? We provide a complete, nationwide support package to help you pass all building regulations under one roof. Book your site testing alongside our core engineering services to save time and money:

    📞 Lock In Your Completion Dates Today

    Don't let building control hold up your handovers. Secure your slot with our nationwide testing team right now.

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