London Damp Proofing - Rising Damp, Penetrating Damp, Wet Rot, Dry Rot, Condensation, Black Mould, Damp Proof Courses, DPC
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London Damp Proofing and Water Proofing

Damp Proofing Specialists - Penetrating Damp, Condensation, Black Mould, Wet Rot, Dry Rot, Rising Damp Treatments have over 30 years of experience in providing effective solutions for Damp Proofing, Rising Damp, Penetrating Damp, Condensation, Woodworm, Dry Rot and Wet Rot Control. We also have Waterproofing and Tanking solutions for cellars and basements, lift pits, swimming pools and underground car parks.

Our expertise and technical knowledge on Damp Proofing and Water Proofing is such that over 90% of our work comes through customer recommendation - a fact that we are very proud of. As well as the residential sector , our customers include Hotels, Restaurants, Pubs, Clubs, Offices, Shops, Housing Associations, Property Developers and Local Authorities. Our London Tradesmen are fully qualified, fully insured and all damp proofing work is backed up with exceptional guarantees and warranties.

We use a combination of Damp Proof Treatments which include

  • Gun Injected Silicon Damp Proof Course
  • Cement Render with Water Proof Additives
  • Specialist Plastering
  • Installation of a Physical DPC
  • Sump Pumps and Drainage Solutions
  • Cementitious Tanking System.

Our Damp Proofing solutions will help eliminate

  • Rising Damp
  • Penetrating Damp
  • Condensation Problems
  • Black Mould and Fungus Growth
  • Woodworm
  • Dry Rot and Wet Rot are general London Building Contractors and can damp proof walls, basements and cellars of any size. Over the years, we have carried out many basement and cellar conversions many of which have needed extensive damp proofing solutions. Take a look at our Basement Conversion portfolio. After installing elegant and effective damp proofing solutions we have gone on to create jaw dropping wow factor finishes that have significantly added to the value of the property.

Basement Portfolio >>

Chemical Damp Proof Course

Water Based Silicone Injection DPC

A chemical damp proof course injected into the wall is a good way of preventing rising damp. The existing wall plaster will need to be removed. the Dryzone/Drytech chemical damp proofing system.

A series of 12mm diameter holes are drilled to the correct depth into the mortar joints at predetermined horizontal centres. A water based silicone cream is then injected into the holes. then uses specialist plaster to seal the wall and prevent the appearance of hygroscopic mineral salt deposits. The specialist plaster also gives a vapour-permeable finish to enable the drying out of the residual moisture within the wall.

Our Price Promise

Damp Proofing - Competitive Prices will fund the first £10,000 of any Damp Proofing project - this is your assurance of a first class job done to your complete satisfaction - nothing to pay until you are completely happy with the finish.

We always quote a fair and competitive price on all damp proofing work. We will NEVER compromise the quality of finish of a damp proofing project in order to reduce costs. believe that given the craftsmanship, dedication and technical expertise that we bring to every damp proofing and water proofing project, our quotes will be the cheapest and best value for money you will find in London.

Professional Damp Proofing

Certified Damp Proofing Specialists

Our London Building Team, including our Damp Proofing Specialists are experienced, time-served and certified by the relevant trade associations. Our Damp Proof Specialists are members of the PCA


The PCA is the trade association for the waterproofing, wood preservation, damp proofing, and structural maintenance industries in the UK.

Sump Pumps

Basement Waterproofing Sump Pumps have the expertise to install sump pumps combined with damp proof membranes which pump any collected water to an external drain.

This system is recommended for water proofing basements and cellars, as well as properties that are at risk from flooding.

We install a P20 Tanking System which works by directing any water in the cellar walls,down the outside of the membrane and channeling it into a sump and pump system in the floor.

The water is then pumped into the external mains once it reaches a preset level.

Ventilation is essential when designing water proofing solutions for basements. Good ventilation will prevent condensation and black mould growth. will advise you on the best options available

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Cementitious Tanking

Cementitious Tanking for Damp Proofing

Our damp proofing specialists remove any existing cement render or plaster and then apply with three layers of cementitious coats to the walls. This seals the moisture within the wall and prevents any dampness from coming through. The walls can then be re plastered and decorative finishes can be applied. most commonly uses this technique to control dampness coming through earth retained walls.

If the source of dampness is caused by a building defect will advise you on the best way to correct the fault.

A common cause of lateral penetrating damp is brick flower beds, rockeries and raised driveways which which are built above the level of the DPC in the existing property wall. Dampness will then spread horizontally to the internal walls of the building.

Other common causes of penetrating damp is badly deteriorated pointing and damaged external cement render coatings - all easily rectified.

Wet Rot Fungus

Wet Rot Treatment

Wet Rot is the name given to fungal decay of damp timbers. As well as visible fungal growth, wet rot can be identified by discoloured, soft and cracked timbers often exhibiting a damp musty smell. will carry out a site survey to assess the extent of the Wet Rot and to look for associated problems such as dry rot and the source of the dampness.

After the inspection we will report back to you the most cost effective and long term solution to your Dry Rot problem.

The Treatment of Wet Rot Involves

  • Eliminating the source of the Dampness
  • Removing all contaminated wood
  • Fungicidal Treatment of the Remaining Wood
  • Treated Timbers are them installed

All damp proofing and wet rot treatments are backed up with comprehensive guarantees from

Dry Rot

Professional Dry Rot Treatment

Dry rot can be identified as a white fungal growth, yellow and lilac at the edges, smelling of mushrooms. It can cause serious structural problems if let untreated. will carry out a site survey to assess the extent of the Dry Rot and to look for associated problems such as wet rot and the source of the dampness. After the inspection we will report back to you the most cost effective and long term solution to your Dry Rot problem.

The Treatment of Dry Rot Involves

  • Eliminating the Source of the Dampness
  • Removing all contaminated wood and plaster
  • Fungicidal Treatment of the Remaining Wood
  • Treated Timbers are them installed

All damp proofing and dry rot treatments are backed up with comprehensive guarantees from

Rising Damp

Rising Damp Treatment has the expertise to diagnose rising damp, to identify what is causing it and subsequently correcting the problem.

Rising Damp can produce the following symptoms

  • Wallpaper Blistering or Peeling
  • Black Mould on Walls
  • Paint Peeling and Blistering
  • Tide Marks on Wall
  • Dark Staining on Walls
  • Damp and falling Plaster
  • Fungal Decay in Skirting Boards
  • Damp Patches on the Walls will trace the source of the dampness - this may be due to faulty plumbing, broken drain pipes, poor ventilation and blocked or poor drainage.

If required a new Damp Proof Course will be inserted into the affected area.


Eliminating Condensation

Condensation can be a major problem in some properties causing black and green mould to spread over walls, ceilings, furnishings and clothes causing significant health and breathing problems.

Invariably the main cause of condensation problems is poor ventilation. Property needs to breathe. Double glazing, sealed fire places, and modern flooring and poor insulation can all exacerbate the problem. provide solutions to condensation build up using a variety of condensation control systems.

These range from simple air extraction units incorporating heat recovery systems to prevent drops in room temperature, to positive pressure ventilation systems which draws in fresh filtered air from outside and creates a positive pressure to circulate it gently around the property and displace stale contaminated air.