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In Focus

Positive Air Ventilation - The PIV Concept

Positive Input Ventilation - The PIV Concept

Positive Input Ventilation (PIV) is the simplest and most effective retrofit system that has been developed for existing properties, where condensation and its associated problems are occurring.

For more information on the PIV Concept, please view our latest interactive flipbook

Latest News

24/09/2014 - Sovereign Waterproofer/Rendermix and Cement

A few years ago we wrote about the use of waterproofer type products and potential problems with new grades of cement. Recently there have been ... read more

22/08/2014 - New Renovation & Conversion Flipbook

The new Renovation and Conversion booklet is now available in our Media Library Section in an easy to view flipbook format. This informative ... read more

28/07/2014 - Roller On, Water Off

Sovereign provide a comprehensive range of Water Repellents in either liquid or cream formulations, such as the Company’... read more




New Products

Sovereign Chemicals, market leaders in chemical damp proof coursing, façade treatment and remedial timber treatment


This reputation has been gained for the quality of its products and also for the support and care offered under the Sovereign Protection Scheme Guarantee. Since 1976 over half a million satisfied property owners are testimony to the effectiveness of the Scheme.


Flexibility is available with the choice of 10, 20 or 30 year Protection Scheme Guarantees for timber and damp proof courses and the introduction of a 10 year Guarantee for façade treatment.


Sovereign Protection Scheme Guarantees are offered by remedial contractors who have been vetted by Sovereign. Only when we are satisfied that they are capable of carrying out work to a consistently high standard do we allow contractors to apply to become Sovereign Approved Contractors. Regular site visits ensure that standards of workmanship and customer care are maintained.



BBA British Safety Council BDMA pca BSI CPD