The independent self-regulatory body for the radon protection industry


Renlon are part of the Renlon Group and are leading specialists in Basement Waterproofing, Damp & Timber solutions for over 40 years, providing full survey and contractor services for London and the Home Counties.

We provide waterproofing solutions for below ground structures and elevated decks or podiums, a range of render and membrane systems together with damp proof courses and treatments for wood boring insects and for the prevention of dry and wet rot decay to timbers.

Whether you are an architect, surveyor, building contractor or a householder we offer a complete survey, design and guaranteed installation service to meet your needs.

We hold association with Construction Line Gold, Safecontractor, Basement Waterproofing Association, SMAS, THSP, BSWA, BSI and Trustmark. All of our design and remedial solutions carry a long-term guarantee, third party insurance backed guarantees are also available.

Area of operation: Nationwide

Course booking Terms and Conditions

  1. All course fees are payable in full at time of reservation unless agreed otherwise.
  2. A refund of 60% of the amount paid will be made in the event of receipt of written cancellation at least FOUR weeks prior to the date of the course. No refund can be made on cancellation thereafter.
  3. If a candidate cannot attend the course on the agreed date, the candidate may be able to attend the next identical course. If they miss this next identical course, they cannot attend another without the payment of course fees. 
  4. Substitution of delegates (from the same company/firm) can be made at any time prior to the start of the course.
  5. In the event that a course is oversubscribed, The Radon Council reserves the right to place candidates on the course as the course fee is paid. When the course is full, the remaining candidates will be moved to the next suitable course. 
  6. All course documentation is provided solely for the private training and study purposes of individual delegates. Copyright is reserved on all material prepared and provided by The Radon Council.
  7. The Radon Council reserves the right to make any alterations to course arrangements necessitated by circumstances beyond its control.