TIMBERGUARD SOUTHWEST

Rising & Penetrating Damp Solutions

Your trusted specialists in timber treatment, damp proofing and property preservation, combining experience with proven results.

Understanding Damp Problems and Their Effect on Your Building

Damp can cause serious and costly damage if not identified and treated early. It affects both the appearance and structure of a building, leading to stained walls, peeling finishes, crumbling plaster and, in severe cases, timber decay. Moisture can enter in different ways — from groundwater rising through walls to rain penetrating damaged masonry or roofs — and understanding the exact source is essential for lasting protection.

At TimberGuard Southwest, our PCA-qualified surveyors carry out detailed inspections to pinpoint the true cause of damp, not just the symptoms. Using advanced diagnostic tools and proven expertise, we provide accurate, effective solutions that protect your property and prevent future problems.

Rising Damp

Rising damp occurs when groundwater travels upward through porous materials such as brickwork or stone — usually where a damp-proof course (DPC) is missing, bridged, or has failed.

Common warning signs include:

  • Tide marks or staining on lower walls
  • Peeling wallpaper or paint
  • White salt deposits (efflorescence)
  • Damp, musty odours near skirting boards


Our Treatment Process:

  • Installation of a chemical DPC via precision-drilled holes along the affected wall base
  • Injection of a high-performance damp-proofing cream to create a continuous moisture barrier
  • Removal of salt-contaminated plaster and re-plastering with a salt-retardant render
  • Application of breathable finishes to help manage moisture long-term

Penetrating Damp

Penetrating damp, also known as lateral damp, occurs when water infiltrates through external defects such as damaged masonry, cracked render, or faulty gutters. It can appear anywhere on a wall or ceiling and often worsens during heavy rainfall.

Typical causes include:

  • Cracked render or brickwork
  • Damaged roof tiles or flashing
  • Blocked or leaking gutters
  • Poorly sealed doors and windows
  • Bridging or debris within cavity walls


Our Solution:

  • Inspection and repair of all external faults causing moisture ingress
  • Application of breathable, water-repellent coatings to masonry surfaces
  • Installation of cavity trays or membranes to redirect water
  • Tailored repairs suited to the age and construction of your property

Why Early Action Matters

Ignoring damp issues can lead to rot, timber decay, and poor indoor air quality. Early diagnosis by a qualified specialist not only prevents further damage but also saves you significant repair costs in the long run.

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