Penetrating Damp Proofing Walls

Typically, penetrating damp is caused by issues with the building or plumbing where a problem has allowed water to enter the property.

FREE Damp Proofing Survey – Click Here

Penetrating damp can have a number of different causes.  When above ground level it is usually because of leaking gutters or downpipes, defective flashings, masonry and mortar defects and poor ventilation.

Moisture penetrates through walls when left unchecked and even though this may look harmless at first water can be one of the most destructive forces on your property. Even if it does not penetrate all the way through a wall it will often lead to condensation problems, moss growth, increased heat loss, and frost damage into the masonry.

Prevention of Penetrating Damp Proofing

Generally, a little bit of property care can go a long way to solving your penetrating damp problem:


  • Examine gutters, downpipes, flashing, rendering and window frames in detail;
  • Always make sure that downpipes are unobstructed;
  • If the guttering has seen better days, think about replacing it with new easy-to-fit plastic guttering;
  • Check the rendering to see if it's cracked, plus look at re-sealing any gaps around window frames;
  • Check underneath window sills as there should be a drip groove to shed rainwater, before it gets to the house wall. If this is blocked with moss, dirt or cement, clear it thoroughly.


The Cure for Penetrating Damp Proofing

Removal of all plaster and backing coats to brick work, in affected areas. Prepare brickwork to receive a 3-1 waterproofed sand and cement render coat, followed by a multi plaster finish coat when render has been allowed to dry.


FREE Damp Proofing Survey – Click Here


Contact us today on:        077 0908 4010

020 8378 0089

Unit 142 Culvert Court, Culvert Road, London, SW11 5AU