London Elite Traders offer a thorough and tested damp proofing service across London and the Greater London area.

Starting with a professional damp survey, our experts utilise a range of techniques to ensure that your property is protected from damp.

London Elite Trades expertise in damp proofing relies on the mastery of various techniques, which include: Damp-Proof Course (DPC), Damp-Proof Membrane (DPM), Integral Damp Proofing, Pressure Grouting, Guniting or Shotcrete and Surface Coating.

Depending on the assessments of our experts, we will advise you on the most appropriate damp proofing technique for your needs. Our services cover all aspects of your property, including: internal areas, external areas and basements.

  • Basements
  • Internal
  • Water Proof Rendering
  • Damp Surveys
  • External
  • Injecting

Damp-proof course describes an impermeable material like bituminous felt paper, metal, slate, mastic asphalt, plastic or specially engineered bricks. These are then embedded between two layers of blocks or bricks within the mortar.

This is usually done at the foundation level to keep moisture and dampness away from the interior of the building. The material usually employed for this process is lime cement plaster mix.

Generally, this is used in surface treatments of sodium and potassium silicate for water proofing. Other options are magnesium sulphate, barium hydroxide and zinc sulphate or aluminum for surface treatments.

  • Damp-Proof Course (DPC)
  • Damp-Proof Membrane (DPM)
  • Integral Damp Proofing
  • Pressure Grouting
  • Guniting or Shotcrete
  • Surface Coating
  • Cavity Wall Construction

Damp-proof course describes an impermeable material like bituminous felt paper, metal, slate, mastic asphalt, plastic or specially engineered bricks. These are then embedded between two layers of blocks or bricks within the mortar.

This is usually done at the foundation level to keep moisture and dampness away from the interior of the building.

The material usually employed for this process is lime cement plaster mix. Generally this is used in surface treatments of sodium and potassium silicate for water proofing – Other options are magnesium sulphate, barium hydroxide and zinc sulphate or aluminum for surface treatments.

Installation of DPC damp proofing

Normally a bed of fresh mortar is laid down and the DPC is put on top of the mortar, making sure there are no holes or gaps. Then it is covered with fill material such as concrete.

This is the most popular option for damp proofing. The masonry we use for this is multi-layered allowing for optimum protection for the surfaces and room.

The mortar is sandwiched between various materials to form an impregnable and water-proof structure.

Pressure Grouting

Pressure grouting is a mix of sand, water and cement that is placed by pressurising grout into the cracks, voids, fissures and joints in the masonry materials used to build with. This type of grouting can be used to improve bearing capacity, repairing and to prevent seepage by forming water cut-offs.

Surface coating is layering a thin waterproof material that resists rain, like a thin layer of concrete that is mixed with compounds that help it to be water resistant or water proof.

Damp-Proof Membrane (DPM)

Damp-proof membrane is when a material like polyethylene sheeting is placed under a concrete slab. This creates a barrier to keep the moisture from the ground from getting into the concrete. DPM normally lays under the DPC as the liner.

Guniting or Shotcrete

Guniting or Shotcrete is when a layer of rich cement mortar mix or a fine aggregate mix is used for water proofing exposed areas like pipes or cisterns. A highly compressive strength can also be used for reconditioning and repairing as well.

If you live in an area that has any kind of humidity you will want some sort of damp proofing. Rain, fog, mist and underground water tables will all cause water damage (over time and if not protected).

When building to prevent dampness, we consider all variables of the project or build, but specifically focus on exposed walls, location and layout.

We think it is better to be safe than sorry. Rather than pay for the potential repairs if something were to go wrong, why not be the wiser and save some money in the long-run. Simply having the wall, room or space looked at by one of our highly skilled trademan is free and could save you £’s! We’ve worked with a large list of clients just like you, across London and the home counties