Pescon - The professional approach to building preservation

Damp Proofing

Rising damp, penetrating damp and condensation are common problems in all types of older buildings, the latter, even in more modern buildings.

Rising damp is caused by a lack of an adequate damp proof course or bridging of an existing damp proof course, where porous bricks and mortar absorb moisture from the ground by capillary action. The most obvious indication of a rising damp problem is a tidemark on the wall, coupled with spoiled, stained plaster and peeling wallpaper.

Where rising dampness has been identified we can help you with a range of damp proofing treatments.

Following your initial enquiry our efficient office staff will discuss your problem and if appropriate, will arrange for one of our qualified surveyors to inspect your property at a mutually convenient time.

Our inspection will involve identifying dampness and investigating the cause. This will include an external inspection to identify potential defects with rainwater goods, defective mortar joints, high ground levels etc.

Where rising dampness is found to be the cause of the problem, a specification and estimate for damp proofing measures will be provided.

Should the problem be one of condensation, we will advise on remediation measures to combat the effects and cause of condensation.

Chemical Injection

This clean and efficient damp proofing treatment is water based and soluble. It quickly diffuses into the designated mortar course, lining the capillaries of brick or mortar preventing moisture rise via capillary action, it is permeable to water vapour, allowing the walls to dry naturally.

Injection Cream

This speedy and efficient damp proof course can be achieved without using high-pressure equipment. The cream is injected in a series of pre-drilled holes, where it diffuses to create a water repellent resin. Injection cream is incredibly safe and un-hazardous, with a low solvent content.


When dampness rises from the ground it may bring with it various salts that occur naturally within the ground. The significance of these salts is that if they are hygroscopic, they can absorb moisture from the atmosphere, leading to persistent dampness on the plaster surface. Salting can often cause breakdown in render mixes. This problem is resolved by removing the damaged plaster and re-plastering with a specialist salt retardant render.


Condensation is particularly problematic due to modern life styles, our homes are better insulated with well-fitted windows and doors reducing drafts and natural ventilation. However, we produce a lot of moisture every day through washing, showering, cooking and bathing etc. With no way to escape, this moisture condenses on colder wall surfaces, where mould and mildew will thrive.

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Why Choose Us?

• Expert work from a qualified team
• Accurate surveys and diagnosis
• The highest quality standards
• Established health and safety policy
• Widest range of services and options
• Domestic and commercial customers
• Dealing with all damp problems quickly and effectively