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What is Mould ???

Moulds are organisms which are neither plant nor animal. They are part of the fungi kingdom.
Unlike plants, molds do not get their energy from the sun through photosynthesis. In fact mold cannot grow under the sun's ultraviolet light.

Mould also digest or "eat" the material they are growing on. The role of mold is to break down decaying organic matter such as dead plants, leaves of dead animals.


black mould treatment

                                                Black mould sample. 

Conditions for Mould Growth in Houses

Mould problems can not develop in house unless there is a moisture problem. The moisture accumulation might be caused through humidity, condensation, or water intrusion from leaks, spills, floods, etc. Most molds only require suitable materials to be wet for 24-48 hours before they can grow.

Besides oxygen and organic materials containing carbon to provide nutrients, the other main requirement mould needs to grow is moisture. You can find mould growing almost anywhere provided there is enough of a moisture source for it.

damp london

What Mould Needs to Grow 

Mould needs these conditions before it can begin to grow in a home:

  • Mould spores
  • A food source ( eg wood, drywall, cotton )
  • Darkness ( mould can't grow under ultraviolet light )
  • Warmth ( mould can't grow in freezing temperatures )
  • Oxygen
  • Moisture ( eg water leaks, humidity )
  • Enough time ( most molds can begin to grow in 24-48 hours if the  conditions are right )

Moisture is really the key cause of mould growth since the other conditions on the list below are always going to be present in homes.

So, essentially, the difference between whether mold grows in your home or not comes down to whether you have a moisture problem.

Give us a call on 077141 87053 or book your Free Survey and we will come and help you to deal with it.  


Symptoms that mold allergies cause 

  • Cold or flu like symptoms
  • Coughing
  • Sneezing
  • Sore throat
  • Irritated, itchy throat
  • Blocked nose
  • Itchy nose
  • Runny nose
  • Sinus congestion
  • Sinus headaches
  • Difficulty breathing, shortness of breath
  • Wheezing
  • Irritated, itchy skin
  • Skin rash, hives
  • Watery eyes
  • Red, bloodshot eyes
  • Itchy eyes
  • Itchy ears
  • Hair loss, baldness
  • Hay fever symptoms

damp mould london


Mould associated with damp buildings can trigger nasal congestion, sneezing, cough, wheeze, respiratory infections and worsen asthma and allergic conditions.

People with weakened immune systems, allergies, severe asthma, chronic, obstructive, or allergic lung diseases are more susceptible to these symptoms and other serious health effects. 

If there are moisture problems at your property you must find the way to Control Black Mould as it will affect your health. 

mould condensation

                                    Mould growing on the ceiling.