Services: Sika Tanking

Sika Waterproof Tanking is a system of internal waterproofing that has a track record now exceeding 100 years that provides an effective barrier against water transmission into a building or structure. This system is not buried but visible. In the unlikely event of a leak or water penetration the defect can be readily repaired.

Originally asphalt was used to form a membrane. However this required loading walls and floors which buried the asphalt. In the event of water penetration the defect in the asphalt is generally impossible to find.
SIKA Waterproof Tanking is a market leader and is compliant with British Standard 8102:2009 for protection of structures against water from the ground.

SIKATOP 121 and SIKADUR Combiflex also form part of the SIKA Waterproofing System. SIKATOP 107 and EPOCEM 81 compliment the installation.

BOSA Contracts provide a 10 year guarantee that can be backed up by Sika Ltd Manufacturer Warranty, and when necessary an Insurance Backed Warranty.

BOSA Contracts Limited are a Sika Registered Contractor.

  • Basements
  • Cellars
  • Culverts
  • Lift Pits
  • Swimming Pools
  • Fluid Storage Tanks