Does Water Damage Cause Mould?

Does water damage cause mould? 

Water damage can be caused by many possible leakages in your property and can often be hidden from sight until substantial damage has occurred. Causes can be as simple as a broken dishwasher hose, overflow from a washing machine or a leaking roof. It’s important to know what to look for if you think you might have water damage and the accompanying risks of mould growth. Mould removal can be dangerous, depending on the type of mould, and just as dangerous if left untreated. Professional mould removal services will likely be required to remediate any mould effectively and safely.  

Most common water damage causes 

There are numerous causes of water damage with the most common including: 

  • Severe wet weather and flooding
  • Clogged gutters 
  • Leaking pipes 
  • Washing machine water supply line leak 
  • Condensation from aircon  
  • Blocked drains 
  • Leaking water from a heater 

Water leaking from these outlets can go unnoticed with the direct cause often hidden behind walls and underneath appliances. Mould growth will also likely be hidden from sight until the water source is discovered and the full need for mould remediation revealed.  

How to identify a water damage?

There are multiple signs of water damage and depending on the area of your property, many different signs. These signs include: 


  • Peeling, bubbling, or flaking paint 
  • Small hairline cracks or a larger, spiderwebbed pattern of cracks  
  • Water rings, usually a light brown colour 
  • Mould growth, especially in corners where walls and ceilings meet, and often in humid rooms or locations: professional mould removal required 
  • Sagging or bowed ceilings  
  • Water stains, often a dark, yellow colour, or similar in appearance to rust  
  • Musty smells  


  • Softened drywall 
  • Discoloration, often appearing in the form of streaks that can be short or quite long, running down the wall in affected areas  
  • Water rings, usually a light brown colour  
  • Cracked, bubbling, or flaking paint.  
  • Musty smells  


  • Buckling, where the floor may separate from the seams and peel upward  
  • Warping, including flooring that may be cracked or bubbling  
  • Discoloration in the floor, which may indicate mould or mildew. Often requiring professional mould removal  
  • Cupping, where plank edges curl upward, leaving the middle slightly depressed  
  • Crowning, where a loss of moisture within the floor leaves the middle raised up and the edges lowered, with planks rounded  
  • Musty odours and smells  


  • Mould growth, which tends to start in the seams of floors and ceilings  
  • A sudden increase in your water utility bill  
  • Stains or other discoloration  
  • Musty odours and smells  
  • Warped, buckled, or misshapen walls, ceilings, and/or floors   
  • Peeling paint or wallpaper  

 Side effects of water damage:

Mould is a common side effect of water damage with damp environments providing the perfect conditions for mould growth. In these cases, mould removal is best performed by professional mould removal services as the mould can extend deeper than surface level. A complete mould remediation is usually required to kill all mould growth.  Professional mould removal is best completed by industry experienced technicians. AllAces Cleaning & Restoration has been operating for over 30 years with professional mould removal Melbourne a recent expansion.  

AllAces delivers a comprehensive range of expert mould removal Melbourne and mould remediation services, including our valuable Mould Inspection & Report package. Our services also extend to commercial and residential buildings, vehicles, building contents, and boats.  

To Learn more about mould removal services:

Mould removal Sydney 

Mould removal Melbourne

Mould removal Brisbane

What’s involved in our professional mould removal Melbourne? 

Our Mould Inspection & Report is an on-site investigation concerned with understanding the full scope of known or suspected mould growth on your property. We conduct a thorough examination, taking moisture and humidity readings, and learning more about the history of the building. We use the information gathered on-site to develop a comprehensive report that outlines the suspected causes of mould growth as well as a range of suitable mould removal and mould remediation strategies. 

Key elements of our professional mould removal Melbourne report include:  

  • Identifying the severity and extent of mould growth  
  • Checking the humidity and moisture levels in the property  
  • Detecting the sources of moisture  
  • Recommendations for root cause rectification and symptom remediation  

Trust in our experience and guarantee to provide unmatched mould removal Melbourne services, while also servicing Brisbane, Gold Coast, Sunshine Coast, Sydney, and Northern NSW.  

Contact us today on 1800 00 10 10! 


What type of mould growth is dangerous? 

Any type of mould can be harmful if in high enough concentrations, with different people having different sensitivities to mould. Black mould growth can be very dangerous as it produces toxic compounds (mycotoxins) that can cause respiratory, neurological, and other health issues.  

Why does mould grow? 

Mould grows because it needs certain conditions to thrive, including moisture, organic matter, warmth, and lack of air circulation. 

Will mould grow back?  

Mould does not dry out and die but remains inactive for a while if moisture is not available. This means that it can still grow back and multiply when it is exposed to any sources of moisture. 

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