Drainage Systems


Base drain or Waterguard is an engineered plastic channel which is designed to move water from one place to another (the sump pump or the natural drainage).

This channel has to be rebated into the concrete slab normally 100mm X 100mm, it is bedded onto 20mm gravel chips and is then covered with concrete to smooth level finish 

Alliance has invested in some state of the art HILTI cutting and breaking equipment.  This equipment has dust extraction capabilities to help minimise the amount of dust produced during the cutting and breaking phases.

Alliance offers the full range of waterproofing products from the largest leading manufacturer: -  Delta Basement Systems 


Alliance Surveyors are fully qualified and are Certificated Surveyors in Structural Waterproofing.  In addition to this they have attended training courses from the leading manufacturers in the UK