One of the biggest problems I see, sometimes a year or two after a leak or small flood, is secondary damage caused by moisture being left inside a wall cavity or a ceiling void.

This is often because the policy holder goes for a ‘Cash Payment’ from the insurance company, mops up the water they can see, allows it to dry, gives it a coat of paint and thinks its all done.

If you have stud-work walling (plasterboard walls) you will have a 10cm (4″) cavity between the two layers of plasterboard.   In a flood or even a leak water will soak into the wall and cavity.   Left without professional drying the moisture in a cavity will cause Black Mould to form, which will eat and bio-degrade organic materials like wood, paper from plasterboard and even paint.

Fix my flood Stop Mould eating your home

Over time this causes expensive secondary damage to your property AND THIS TIME ITS YOU WHO PAYS.  For all secondary damage you will have to cover all the building work costs yourself as you agreed the insurance ‘cash settlement’ was in full and final payment!  The secondary damage is now all yours!

As if this wasn’t bad enough – MOULD IS A HEALTH HAZARD to you and your family.

Here’s How We Dry The Internal Wall Cavity…


To stop the Mould forming we must dry inside the wall. We remove the skirtingboard and drill holes between the wall posts. Fix our special drying vents to the wall (or ceiling) covering these holes.

Please Note:  If the water is classed as ‘Black Water’ we will cut the Plasterboard and insulation out to 200mm (8″) above the waterline (or damp line).  This material is safely disposed of.  The remaining wooden parts of the wall are then sanitised, cleaned and fully dried.  


We force ‘Filtered, Warm and Dry Air’ inside each cavity to increase the rate of evaporation and achieve a faster, more complete structural drying, while reducing secondary damage to your home or furnishings.


Depending on your homes design and layout we may vent the moist air outside or use dehumidifier/s to remove the moisture from the air.   After the cavity is dried it only requires the skirtingboard to be replaced and decorated … without this specialist drying you will need to rip out and replace part of the wall NOW (or you may be doing at your own cost within 1-3 years).

WARNING:  Flood water (even fresh tap water) which is left for 1-2 days in a warm dark place will start to form Black Mould.   The Mould forms by ‘bio-degrading’ organic materials like wood, paper from plasterboard and even paint.   As if the damage wasn’t bad enough – BLACK MOULD IS A KNOWN HEALTH HAZARD to you and your family.


For more information on how to dry inside your flooded wall in Hertfordshire please call Mark Pritchard on now on…

Call 07774 771387