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As penetrating damp forms when water gets in from the outside we will look at:


  • Gutters and downpipes - making sure they are unobstructed, correctly fitted and intact.

  • Window and door frames – Looking at any deteriorating seals or Blocked drip groves.

  • Walls – Cracked brickwork, render and masonry and/or missing pointing.

  • Ground levels – We will check to see if your external ground levels are lower than you internal ground levels.

  • Missing, loose or cracked roof tiles

  • Defective Flashing

  • Deteriorated flaunching

  • Loose or missing ridge capping.


Once the cause or causes of penetrating damp have been Identified, Ranguard will offer you the best possible solution.

  • Porous brickwork

  • Missing Pointing

  • Cracked render or Masonry

  • Defective roof

  • Defective or deteriorating mastic around the outer edge of the frame of a door or window

  • Cracked window seals

  • Inadequate drip grooves

  • Faulty or Blocked Guttering and downpipes
  • Lateral Penetrating Damp – when the external ground, abutting the wall is above the internal floor level.

What is Penetrating Damp and how can this affect your property? - Penetrating damp treatment, damp problems, penetrating damp solutions

Causes of penetrating Damp

Ranguards first step to treating penetrating damp is identifying the cause. Our expert team we will carry out a full property check of everything in and around your property.

  • Wet Rot/Mould

  • Damaged plasterwork

  • Damp/musty smells

  • Frost damage to masonry

  • Visible water damage

  • Rooms feeling cold and uninhabitable

  • Damaged timber as a result of the wood being saturated by damp that possibly may cause wet or dry rot


*The above is only a guide to help identify penetrating damp.

  • Blackened walls/mould growth
  • Peeling or flaking decoration to the interior of your property
  • Watermarks that may appear on the masonry and grow if the water continues to enter

Further Problems caused by penetrating damp

Penetrating damp refers to water passing through external walls, roofs or external reveals, into a building.

Ranguard  Penetrating Damp

Ranguard’s Solution

Guttering Cleaning Hemel Hempstead


 Stop dangerous water damage to your home, contact us today! Ranguard Penetrating damp solutions.

Symptoms that can help you identify penetrating damp include