External waterproofing or Type B Waterproofing os and can be an integral part of your basement construction, as it will act as your primary structural water proofing, this complies with BS8102.

Excel Waterproofing has a keen interest in this type of systems.

Systems used include:

  • Sikaproof Membrane
  • Sika tight concrete
  • Koster Deuxan 2c
  • Koster 21