Established in Melbourne in 2009, Efficiency Matrixis one of Australia's leading building performance specialists. Grounded in sound building physics, we help homes and buildings become more comfortable, healthier and cheaper to run through air tightness testing (blower door testing), thermal imaging, ventilation assessment and building envelope consultancy — working across residential, commercial and government projects Australia-wide.Through our tightHOUSE brand, we put that expertise directly into homeowners' hands with practical, DIY-friendly products. Our tightHOUSE Door and Window Seal is one of Australia's most popular draught-proofing solutions, rated 4.9 starsfrom over 100 verified reviews — sealing gaps from 2–10mm to cut heating and cooling bills, block dust and pollen, and reduce outside noise. Our CompleteDoor Weather Sealing Pack gives you everything needed to fully seal an externaldoor in one box.Sealing is only half the story: a healthy home also needs to breathe. That's why we developed qVENT, an innovative acoustic door vent that quietlyventilates closed rooms — helping conditioned air circulate evenly and preventing condensation and mould, without sacrificing privacy or letting noise travel the way old louvred vents do. In your home, go air-tight and ventilate right.Visit our stand to see live demonstrations, browse our tightHOUSE detailing video series, and pick up our free Tight House Standard ResidentialSpecification Infopack — a 20-page air-tightness and insulation detailing guide developed for Australian construction, now that air tightness testing is part of the National Construction Code.Air tightness testing, draught sealing and smart ventilation — Australian owned since 2009. Go air-tight, ventilate right.
