About us

ADD Waterproofing was developed by a property preservation specialist with over 40 years experience in dealing with dampness in buildings. Having also been involved in the field of radon gas for 20 years, and with increasing numbers of people recognising the need to take account of radon in basements, the idea of designing a combined solution to both these issues for use in basements was born.

The concept was patented and packaged as ADD Waterproofing in 2008 (Patent No: 2464401). 

The Wykamol Group are the appointed Licensed Distributor of the ADD Waterproofing components.

For over 70 years Wykamol has been a market leader in the field of property renovation and repair. The firm’s product range has evolved and grown to become the broadest range of property repair and renovation solutions under one umbrella anywhere in the UK. Wykamol products are now distributed and used throughout Europe, the Middle East and Australia.

A nationwide network of highly-trained waterproofing specialists have been granted licenses to install the ADD Waterproofing system. These specialists have a reputation for offering premium quality workmanship and have demonstrated their skills over the years. Surveyors and designers from these specialist firms have also completed rigorous training and completed an examination prior to becoming ADD Waterproofing Licensed Installers. The ADD Waterproofing system is only available from official Licensed Installers, who each hold a certificate indicating their status.

The ADD Waterproofing system is only available from official Licensed Installers.