Installation Guide


  • Handling of Freezteq must be conducted whilst wearing the full recommended PPE. The Safety Data Sheet should be read in conjunction with these instructions prior to using the product.
  • Prior to any installation the Freezteq sticks must be placed in a freezer for a minimum of 48 hours. The sticks must be completely frozen solid. They cannot be applied or cut until they have reached this state.
  • 250 Freezteq sticks will typically treat an approximate length of between 6 and 7 metres of 225mm thickness wall. Please note usage is dependant upon environmental, structural and other conditions.
  • The defective internal plasterwork must be removed to a minimum height of 200mm above the level of damage.
  • External rendering must also be removed to a minimum height of 200mm above the level of damage.


  • Drilling can be carried out both internally and externally.
  • The drill holes should be made with a 22mm drill bit.
  • When drilling a hole into the wall they should be to a depth of 25mm of the opposing face.
  • The first hole must be drilled 55mm from the walls edge, then 110mm apart thereon in. (Centre to centre of each hole).
  • External holes should be drilled at least 150mm above ground level or one mortar course above the existing DPC that has ceased to be effective.
  • If the internal floor is of concrete construction, drill into the first mortar joint right above the floor’s surface.
  • If the internal floor is a suspended wooden floor, drill as close as possible to the floor level from the inside into the first mortar joint.


  • The frozen stick of Freezteq can be cut out of the sachet simply using a pair of scissors or a knife.
  • The sticks should be pushed into each pre-drilled hole. Sufficient ice sticks must be used to fill the hole completely. The number of sticks used is dependent on the thickness of the wall.
  • Once all holes have been filled, this is classified as one application.
  • Once the first application of Freezteq has completely melted, the process is repeated until a total of FOUR applications have been made within each hole.
  • After the first application has been made, the remaining three applications MUST be inserted within a 24-hour period.

Vertical Application

  • In such circumstances where your Freezteq application is adjoining to an existing DPC system, it may be necessary to install a vertical DPC.
  • Once the horizontal DPC has been drilled, additional holes should be drilled vertically to a height of 1.2-1.5m following the mortar line.
  • Once this has been completed, four applications of Freezteq are to be carried out as previously described.

Remedial Work

  • Following the Freezteq application, the holes must not be filled with mortar or the like for a minimum of 3 days.
  • Holes must be filled using appropriate strength mortar to maintain the structural integrity of the wall. Independent technical advice should be sought with regard to the integrity of the structure.
  • Redecoration can only be carried out when the  plaster is completely dry.
  • Should the plaster need to be replaced due to the original damp issue, re-plastering below the Freezteq DPC must be carried out using a suitable cement-based coating containing a waterproof additive.
  • Re-plastering above the Freezteq DPC should be done with a regular or breathable coating, depending on moisture levels.

Please Note

  • This installation guide is for general guidance only. It does not constitute as a detailed guide for specific application. Due to the unique circumstances of each and every site, each installation must be assessed on a project by project basis. There may be many variables to consider, such as services running through/across the wall. Independent professional advice should be sought on each installation.
Instructions for installing Freezteq damp proofing solution