Damp Proofing

Damp proofing is a means to stop moisture from an external source from being transmitted through walls and into the inside of our homes. If a house has a damp problem then it is vital to establish the precise cause before establishing the appropriate remedial treatment.

Damp Proofing Cream

Damp Proofing Cream

Looking for Damp proofing cream for your walls? Twistfix offers you best quality damp cream in the UK at an affordable online price.
Damp Proof Membrane

Damp Proof Membrane

A damp proof membrane is a synthetic waterproofing layer that is designed to block the transfer of moisture in a building, from one area to another.
Damp Proof Paint

Damp Proof Paint

Buy Damp Proof Paint for stop dampness from penetrating into buildings. Twistfix supplies damp proof paint and waterproof paint at trade prices
Electro Osmosis Damp Proofing

Electro Osmosis Damp Proofing

Electro osmosis damp proofing. Lectros DPC system is the only damp proofing treatment for stone walls that is installed above timber floor joists.
13–24 of 28 items

Penetrating Damp Treatment

Water repellent surface treatment for protection against penetrating damp. Prevents water migrating through brick and masonry façade walls. Costs much less than storm-proof render products. 25L
  • RRP £116.95
  • £93.54
  • £77.95
Rating 4.0 of 5

Damp Injection 8000 Box

Rising damp injection cream in a builders refill pack. A low cost and low waste damp course cream package supplied in a 8 litre refill pack for damp proof contractors. This box treats up to 40m of double leaf wall
  • RRP £149.50
  • £118.80
  • £99.00

Damp-Proof Injection Kit 3000 Pro

A DPC injection kit for the professional user. Includes all products needed to provide a chemical damp proof course to walls. Sufficient DPC cream for treatment of up to 75m of double leaf brickwork.
  • RRP £349.50
  • £298.80
  • £249.00

Damp Proofing Injection Cream – Dampcure 1000

Damp-proof cream in 1 litre cartridges. A reliable damp injection treatment using a large caulking gun and nozzle to stop damp in walls. This cartridge treats up to 5m of double leaf walls
  • RRP £24.75
  • £21.00
  • £17.50
Rating 4.7 of 5

Rising Damp Kit

Rising damp kit comprising 3 litres of DPC injection cream and 5 litres of plastering additive. This kit has everything needed to treat rising damp along 30m of single leaf wall or 15m for 9" walls
  • RRP £119.50
  • £94.80
  • £79.00
Rating 5.0 of 5

Silane Water Repellent Facade Cream

Silane water repellent is a high strength damp proofing cream for waterproofing building facades, monuments and reinforced concrete structures including bridges, tunnels and piers. 3kg Tub
  • RRP £89.75
  • £83.40
  • £69.50

Fungicidal Paint Additive

Fungicidal paint additive for anti-condensation paint. Black mould prevention at a fraction of the cost of a specialised fungicidal paint.
  • RRP £9.25
  • £7.50
  • £6.25
Rating 5.0 of 5

Damp Proofing Cream-380 12 PACK

DPC cream in 380ml cartridges. Without the need of any specialist equipment the DPC cream will provide an effective barrier against rising damp in walls. The twelve cartridges will treat 22.8 lm of double leaf brickwork.
  • RRP £177.00
  • £99.36
  • £82.80

DPC Injection Cream-Damp Cure-3PK

Damp Proofing Cream sold as a 3 x 380ml pack for the treatment of rising damp. Using a standard caulking gun to inject the cream into the wall the cream will provide an effective barrier against rising damp in walls.
  • RRP £44.25
  • £32.04
  • £26.70

Damp Proof Cream 380 DPC-6PK

Damp Cure DPC cream in 6 x 380ml cartridges. Treat damp walls with advanced chemical damp proof course products. No specialist equipment needed. Simple DPC injection treatment using caulking gun.
  • RRP £88.50
  • £56.88
  • £47.40

DPC Cream 24L Kit

DPC kit for Builders. This 24 Litre DPC injection pack contains the products needed to provide a chemical DPC to stop rising damp in walls. This kit treats up to 120m of double leaf / cavity wall
  • RRP £447.00
  • £380.51
  • £317.09

Damp Proof Cream - 4 x 1LTR - BBA

Rising damp injection cream in 4 x 1 ltr cartridges. Inject into the mortar bed using a large caulking gun to form a Chemical DPC. The four cartridges will treat 20m of double leaf walls.
  • RRP £99.00
  • £80.40
  • £67.00

The most common causes of excess dampness in buildings are:

  • Condensation - Sorbent moisture from condensed water vapour that is deposited when humid air makes contact with a cooler surface.
  • Penetrating damp - Capillary moisture soaking through a porous wall as it is absorbed from an external source
  • Rising damp - Capillary moisture soaking upwards into a porous wall as it is absorbed from a ground source.

It is imperative to establish the precise cause of the moisture and to remove its source or to provide a water repellent layer to prevent humidity from being transmitted into the home.

  • Condensation occurs when air moisture content is too high in relation to temperature. Consequently condensation can be avoided by correcting the balance between humidity generation and air or surface temperatures.
  • Penetrating damp can avoided by regular building maintenance such as repairing leaking gutters, filling cracks and repointing etc.
  • Rising damp can be alleviated by removing soils or cavity blockages that breach the damp proofing course. Where a DPC is missing or is defective then remedial damp treatment can be used to combat capillarity.

A damp proofing course (DPC) is a waterproof layer that is installed 150mm above ground level during the construction to prevent ground water from the foundations into the home. 

Brick stone and mortar building products are each porous to various degrees. Without an effective DPC some water may be absorbed into porous through the process of capillarity. This capillary action is often referred to as rising damp and can be detrimental to your home. The amount of water absorption that can affect a wall having no protection is determined by ground moisture levels and the balance between capillary forces, gravity and evaporation. The main controlling factors are the rate of suction of the water into the wall and the ease at which dampness can evaporate from it.

Modern buildings with cement mortars have lower water-absorption rates than older buildings with lime mortars. It therefore follows that damp control treatment is more often required in older properties.

Chemical Damp Proofing

A very common method for treating rising damp in homes with traditional brick walls is the insertion of a Chemical DPC Injection Treatment. A silicone-based proofing cream is injected into a series of holes that are formed along a mortar bed joint. The cream is absorbed into the pores of the masonry and lines them with a silicone coating that limits capillarity and forms a chemical damp proof course. Once the DPC injection treatment is complete and the source of the dampness cut off then the wall will begin to dry through continued surface evaporation. Thin walls will dry quicker than thick walls and drying walls may leave residual salt deposits

DPC injection systems are less effective in counteracting augmenting moisture where mortar joints are not continuous along the length of a wall or through the entire depth of it.  A more effective method of treating rising damp in houses having random stone or rubble filled walls is through Electro-osmosis Damp Proofing. An electric DPC system uses a series of anodes placed in the wall to provide a small positive charge through it in order to repel free water molecules. A cathode that is buried in the ground attracts the positively charged molecules. As electro osmotic forces are substantially greater than those of capillarity then free water molecules are forced from the anodes in the wall and down to the cathode in the ground

In addition it is important to damp proof your home against penetration damp that may be entering the building through walls or roofs. Pore-lining façade cream, damp proofing paint and waterproofing membranes all have a role to play in keeping the home free from water penetration.

Correctly selected damp proofing products will successfully stop humidity from penetrating or rising through the walls into the interior of homes. Twistfix help to make the process quick, easy and cost effective.