Why Is My House So Damp in Winter? Simple Fixes That Work

If your home feels damp, cold, or musty in winter—you’re not alone. Many Kiwi homes, especially older ones, struggle with excess moisture when the temperature drops. The good news? A few small fixes can make a big difference.

What Causes Winter Damp?

  • Poor ventilation (closed windows, wet clothes drying indoors)
  • Blocked gutters or downpipes
  • Cold walls and uninsulated spaces
  • Leaking windows or damaged flashing

 Simple Fixes to Try

  •  Use extractor fans in kitchens and bathrooms—and leave them running for a few minutes after cooking or showering.
  •  Install window stays so you can safely leave windows slightly open to improve airflow on dry days.
  •  Unblock gutters and check downpipes—overflowing water can seep into walls and ceilings.
  •  Add insulation to underfloor or ceiling spaces to keep rooms warmer and reduce condensation.
  •  Consider a dehumidifier for bedrooms or damp-prone areas.
  • Dry washing outside

A drier home isn’t just more comfortable—it’s healthier too. If the moisture keeps coming back, it may be time to call in a handyman for a full winter check-up. We can help keep your home dry and cosy this winter! Call 0800 454 654.

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