Unusual odours within your home can serve as subtle water damage indicators, necessitating a closer look to identify their origins.
A pervasive musty odour typically signifies the presence of mould, which flourishes in environments saturated with moisture due to leaks or condensation. Check areas prone to dampness, such as under sinks, basements, or around water heaters and pipes.
Conversely, a metallic scent may indicate the onset of rusting in pipes. This distinctive smell can arise from metal oxidation in the presence of moisture. Inspect visible piping and faucets for any signs of corrosion, as this may not only lead to leaks but also affect the water quality in your home. Similarly, a sewage-like odour suggests potential issues with the plumbing system, likely indicative of leaky pipes.
If such odours persist without a discernible source, it is advisable to engage the expertise of a licensed plumber or home inspector and get a comprehensive moisture assessment.