Professional investigation and remedial support for damp and timber concerns.
If your survey has highlighted dampness, rot, or wood-boring insects, specialist advice is vital. Our framework of local PCA-registered specialists provides the technical support needed to rectify these concerns.
Not all dampness is rising damp. Our specialists use the “Speedy Carbide Test” to establish the presence of ground moisture salts. We help identify:
If you have been advised by your Mortgage lender or Surveyor to obtain a specific report, this should be clearly stated. However, it is not uncommon for woodwork to be affected by moisture where dampness is present.
A damp specialist, looking for potential rising moisture should conduct what is known as a “Speedy Carbide Test”, this extracting a sample of the brick/ plaster to establish whether salts are present from ground moisture.
Firstly identify the nature of moisture present, not all dampness is the cause of rising damp and the treatment will vary. It is not uncommon for cavities to be filled with brick dust/ debris/sand or cavity wall insulation that has been affected by moisture and bridging the cavity. Clearing the cavity and adequate drying may be sufficient, for example.
The cost of treating rising damp can vary based on factors such as the extent of the dampness, the method of treatment, the location, and the condition of the building. However, on average, you can expect the following approximate costs:
Injection Damp Proof Course (DPC) Treatment:
– This method involves injecting a chemical damp-proof course into the walls.
– Typical cost: £30-£50 per square meter.
Membrane Damp Proofing:
– This involves installing a physical barrier to prevent moisture from penetrating the walls.
– Typical cost: £40-£80 per square meter.
Wall Treatments and Plastering:
– Re-plastering and treating the walls after damp proofing to prevent future moisture penetration.
– Typical cost: £15-£25 per square meter for re-plastering, additional to damp proofing costs.
Additional Cost
– Inspection and diagnosis: £150-£300 for a professional damp survey.
– Repairs to damaged structures: Variable based on extent of damage.
These costs are approximate and can vary based on specific circumstances and geographic location. It’s always advisable to get quotes from multiple contractors to get a more accurate estimate for your particular situation.
It is advised to obtain 2/3 quotes and schedules of remedial works from suitably qualified and skilled professionals.
Prior to instructing your damp or timber specialist, obtain evidence of the guarantee details, how long it is valid, what it will cover. Are they PCA regulated?
Is the guarantee covered by relevant insurance?
Rising Damp
Occurs when moisture from the ground rises up through the walls by capillary action.
Signs: Tide marks on walls, peeling paint or wallpaper, and damp patches on lower parts of walls.
Penetrating Damp
Results from water penetrating through walls or roofs due to defects like cracks or faulty gutters.
Signs: Damp patches that increase in size after rainfall, localized damp areas on walls or ceilings.
Condensation
Occurs when moist air comes into contact with cold surfaces, leading to water droplets forming.
Signs: Water droplets on windows, black mould growth, musty smells, and mildew.
Dry Rot:
A serious fungal infestation that can cause extensive damage to timber. The fungus thrives in damp, poorly ventilated conditions.
Signs: Wood that is dry and brittle, with a white or grey fungal growth, and a musty odour. The affected wood often crumbles easily.
Wet Rot:
Caused by a variety of fungi that thrive in wet conditions. It is less severe than dry rot but can still cause significant damage.
Signs: Wood that is soft and spongy, with a darkened appearance. The timber may shrink, crack, and show fungal growth.
Types of Decay
Timber Decay:
General deterioration of wood due to biological agents like fungi and insects.
Signs: Crumbling wood, visible holes or tunnels (from insects), and a loss of structural integrity.
Masonry Decay:
Deterioration of brick, stone, or mortar due to environmental factors, moisture, and salts.
Signs: Crumbling mortar, spalling bricks or stones, efflorescence (white salt deposits), and cracking.
Have a question about our professional framework or need assistance with a specific service? Our team is on hand to ensure you have the clarity and support you need to move with confidence.
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