How to stop your shed smelling musty – 9 expert-approved methods to banish bad odors

A white garden shed with large, open windows. Painted white. In a back yard fenced in with tall bushes, potted trees, and shrubs around the shed. A small stone garden path leading to the shed through short grass lawn.

While it might just be where you store your gardening tools, spare plant pots, and lawnmower, your shed smelling musty is not only an annoyance – it could indicate some pressing problems.

From trapped moisture to unfound leaks, it's important to take action as soon as you spot or smell a problem, urge HVAC pros.