Why Customers Trust Passive Purple: Real Reviews on Trustpilot
Choosing an airtightness system is a decision you live with for the life of the building.
So it matters what the people who have actually specified, sprayed and brushed Passive Purple® have to say — and that feedback lives on Trustpilot, independent and unfiltered.
Rated 4.4 / 5 ‘Excellent’ on Trustpilot, based on 16 verified reviews from a claimed, verified business profile.
Independent Reviews You Can Rely On
Trustpilot is one of the world’s most recognised review platforms precisely because businesses can’t edit or remove genuine customer feedback.
Because our profile is claimed and verified, every review you read comes from a real, traceable customer. You can read them all here: Intelligent Membranes on Trustpilot.
What Our Customers Say
A self-builder on the Isle of Lewis coated their PU SIPs walls and cellulose-filled roof in Passive Purple External and Internal, choosing a liquid membrane because it’s far easier to apply single-handed:
“It just shrugs off the rain and I’m not worried about damage to our OSB.” — Guy, verified Trustpilot review
They highlighted no long rolls of flapping membrane, all fixings sealed, no air gaps for moisture or sea air to track behind — and praised the team’s responsiveness and passive-house knowledge.
What Customers Value Most
Across reviews and project feedback, the same themes come up again and again:
- Easier single-handed application — liquid-applied, so no flapping rolls; spray, roller or brush, up to 300m² a day.
- Reliable airtightness results — helping projects meet and exceed building-regulation and Passivhaus targets.
- Seals everything — fixings coated, no air gaps behind the membrane for moisture to track.
- Knowledgeable, responsive support — technical guidance from a team that lives and breathes airtight construction.
See For Yourself — Then Specify With Confidence
Read the full set of reviews, then explore the complete Passive Purple range, or order Passive Purple Internal — Airtight Vapour Control (11.4kg) direct.
Already used Passive Purple on a project? Leave us a review on Trustpilot — or contact us for advice on your next project.