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Apt Solutions

Air permeability testing for new dwellings in South-East England, to Part L1A of the Building Regulations

London, United KingdomFounded 1988apt-solutions.co.ukWebsite technologies

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  • New on EvolcAdded 2026-10-31

About Apt Solutions

APT Solutions provides air permeability testing, also called air tightness or air leakage testing, for new dwellings to meet Part L1A of the Building Regulations. Tests cover flats, detached houses and multi-dwelling apartments, and measure the air leakage of the building envelope by depressurising the dwelling with a fan mounted in an external door opening.

Its clients are builders and developers of new dwellings. Engineers are BINDT registered and use UKAS calibrated equipment, which the company states allows results to be accepted by building control throughout the UK. The company offers free advice early in the build, stays on site on the day of testing to help resolve problems, and offers a no pass, no fee option if a dwelling fails.

Testing is carried out mainly in South-East England, including London, Middlesex, Surrey, Sussex, Essex and Kent, and further afield where multiple tests are required. APT Solutions Limited was founded in 1988 and is headquartered in London; it lists an address in Kingsdown, Kent.

Product: Air permeability (air tightness) testing of new dwellings to Part L1A of the Building Regulations, with on-site support and a no pass, no fee option.

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