Rising Damp

Expert services in diagnosing and treating rising damp in the South West.

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How will I know if Rising Damp is present?

There may be damp patches on the walls normally below a height of 1.5m, wallcoverings may blister and peel and hygroscopic salts may appear at the surface often seen as a whitening (efflorescence) on exposed masonry. Electrical back boxes can corrode and woodwork may split and crumble. In advanced cases a clearly distinguished ‘tide’ mark will be visible. Skirting boards, joists and other structural timbers can subsequently suffer from dry or wet rot depending on conditions.

Rising damp in walls occurs when there is no damp proof course (DPC), a defective or damaged damp proof course or when the existing course is physically bridged. Water rises up from the subsoil below, travelling through the natural pores in the building material this will in turn cause renders, plaster and wall coverings to become wet. In the worst case it can lead to structural damage affecting timber floor structures it can even disrupt electrical circuits on walls with sockets and switches.

What can be done about Rising Damp?

The first and most important task is to obtain a clear and accurate diagnosis of rising damp, Wessex Damp and Timber will provide a comprehensive damp and timber survey with a written report and if necessary a specification for remedial works.

Rising damp is often incorrectly identified and is easily confused with condensation and penetrating damp. A remedial works may be as simple as lowering an external ground level or removing external render that has been taken all the way to the floor (both can bridge a damp proof course). Internal plaster, hidden behind skirting, might be in contact with a solid floor or screed allowing moisture to travel up the wall also. Internal plumbing leaks and defective rainwater goods (guttering etc.) can all contribute to rising damp, providing symptoms that are common to rising damp. Poor build quality where mortar droppings in a cavity have bridged the DPC or even debris from window and door replacements can do the same.

If rising damp has been identified and correctly diagnosed then there are a number of treatment options available dependant on the type of construction:

  • Physical DPC
  • Chemical DPC – Low and High pressure.
  • Electro-osmotic system

If you have any concerns with rising damp or if a pre purchase building survey has highlighted issues then call us today 0800 161 3078 or complete the contact form and we can provide advice or a free of charge survey.

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Commonly replastering is necessary particularly to remove hygroscopic salts which can continue to present damp symptoms long after the insertion of a new DPC. Again dependant on the materials used in construction a specific replastering detail will, if necessary form part of you remedial specification.

Why choose Wessex Damp & Timber

25 Years of Experience

With over 25 years of experience in the service sector you will receive an unrivaled level of customer care from the survey through to the completion of works.

Unrivaled Customer Care

We are a family run business with a professional and modern approach whilst still maintaining that personal level of service you associate with a local company.

Professional Service

Constantly seeking to maintain our knowledge base we access all the latest information and available literature to ensure we are at the forefront of the industry.

Wessex Damp and Timber are an industry leading company who provides services to help cure dampness and condensation in both the home and commerical environments.

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Services We Offer

Some of the services we offer in property preservation

If you have issues in your home such as peeling paint or loose plaster, mould spotting or visible stains and ‘tide’ marks then you may have a damp problem and if so we have the solution. Whether it’s rising or penetrating damp we will provide you with a diagnosis and the solution.

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Condensation in its simplest form is when moist air comes into contact with colder air or a colder surface and the water contained in the air is released to form condensation in the air or on the surface. It often results in black mould growth on walls and surfaces or you can see water droplets.

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Aged and Period properties can often be cold and condensation will form on external walls, we can provide various types of solid insulation and often incorporate this with a level of damp proofing. Internal temperatures will improve and mould spotting reduces.

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