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Designed by PCA surveyors and aligned with BS 6576 the Eco Tiffin AirDrain uses natural evaporation to reduce excess moisture in external walls.
Unlike conventional methods that merely address the symptoms, the AirDrain targets the core issue by enabling moisture to evaporate before it penetrates the masonry. This proactive approach helps prevent dampness and the resulting damage.
The AirDrain helps protect homes from moisture problems and heat loss by enhancing natural evaporation at the base of external walls. It delivers proactive moisture control, supports improved thermal performance and reduces the risk of condensation and mould.
Lightweight, non-invasive and compatible with a wide range of external finishes, AirDrain is an effective addition to broader retrofit, insulation and moisture-management strategies.
The AirDrain is installed around the base of external walls at ground level, creating a ventilated channel that enhances surface evaporation and reduces moisture loading on the wall fabric.
Moisture Mitigation
Diverts and dissipates moisture accumulating at the base of external walls.
Thermal Improvement
Reduces the impact of cold bridging by maintaining lower moisture levels in critical junctions.
Passive Ventilation
Creates a natural airflow at base level that aids evaporation without mechanical systems.
AirDrain can be purchased directly from Eco Tiffin (supply-only or supply and install) with tailored sizing and guidance for your property – simply contact our team for a quote today.
AirDrain is suitable for modern and heritage properties alike, whether a damp proof course is present or absent. It is particularly effective where ground levels are too high, where damp proof courses have been bridged, or where moisture is affecting the base of external walls. The system can be used on residential and commercial buildings of all sizes and construction types.
For older buildings with higher moisture permeability and traditional materials, AirDrain supports natural moisture movement while reducing the risk of internal damp and cold bridging.
In basement areas where external ground levels are close to internal floors, AirDrain helps reduce moisture ingress and maintain drier wall junctions.
For homes experiencing recurring damp issues that standard treatments haven’t fully resolved, AirDrain helps target moisture pathways at ground level that are often overlooked.
Where external exposure to rain, high water tables or poor drainage contributes to damp, AirDrain adds an extra layer of passive moisture management.
Eco Tiffin recommends AirDrain because it tackles one of the most common causes of moisture problems in UK properties: moisture building up where external ground meets the building fabric. Left unmanaged, this can contribute to damp, cold bridging, condensation and reduced thermal comfort.
AirDrain supports natural evaporation, helping to reduce moisture loading and protect external walls from long-term damage. Designed by PCA surveyors and aligned with recognised building standards, it provides a practical, non-disruptive solution for ground-level moisture management.
As a passive system, AirDrain works alongside insulation, ventilation and wider moisture control measures, supporting a fabric-first approach to building performance. Suitable for modern, heritage, residential and commercial properties, it helps prevent recurring damp issues while contributing to healthier, warmer and more comfortable internal environments.
Explore examples of homes transformed through smart surveys, retrofit planning and expert build-outs - practical inspiration for your next project.
I have recently had a pre-purchase survey carried out by Eco Tiffin Ltd. Firstly, the service was so quick and efficient and dealt with highly professionally and without much involvement from me. I needed them to organise key collection and drop-off from the estate agents. The survey was carried out, and the report that followed was very informative and exactly what we needed to know about the damp and timbers in the property. Altogether, very impressed and will definitely recommend Eco Tiffin to any prospective buyers. Very friendly team.
Thank you for your in-depth and comprehensive report. It immediately reassured me of the high standards your company upholds. The works were exceptionally well planned and professionally delivered throughout. Harry, Steve and the team, led by Adam, produced an excellent finish and successfully overcame numerous structural challenges encountered during the project. I would highly recommend Eco Tiffin to anyone looking for a knowledgeable, professional and reliable company. Five stars to the entire team.
Hi folks, I have to write a quick note thanking the lovely surveyor, Bryan, for his care and attention in explaining to me about the damp in my property.
Since Eco Tiffin carried out our insulation and ventilation improvements, we have noticed a huge difference. Our washing now dries much quicker indoors, and our home stays at a comfortable temperature all year round. The house feels warmer in winter, cooler in summer, and overall much more comfortable to live in.
The AirDrain is a fantastic value-for-money engineered product that has saved us thousands of pounds by eliminating the need for extensive ground-level alterations across our housing stock. It provided a practical, cost-effective solution while delivering excellent results.
