Condensation in Conservatory
Moisture forming on the inside of conservatory windows and roof panels, dripping onto furniture.
What Is Causing This?
- 1Poor ventilation trapping warm, moist air inside
- 2Large temperature difference between inside and outside
- 3Polycarbonate roof panels providing poor thermal performance
How Urgent Is This?
This is a cosmetic issue. It is not causing damage and can be addressed in your own time.
What Needs to Be Done
A conservatory specialist will improve ventilation with roof vents or trickle vents, upgrade the roof or glazing, and may recommend a dehumidifier for immediate relief.
How Much Will It Cost?
National average estimate
Labour: £1,717 – £4,533 | Materials: £2,017 – £7,133
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Some fixes for this problem may require planning permission or building regulations approval. Check if your project needs permission:
How to Prevent This
Open windows or trickle vents daily. Avoid drying clothes in the conservatory. Consider upgrading the roof for better thermal performance.
Related Problems
The conservatory becoming too cold to use comfortably during autumn and winter months.
Water dripping into the conservatory through the roof panels, joints, or where the conservatory meets the house wall.
Black or dark green spots spreading across the bathroom ceiling, sometimes extending down the walls.
Other Conservatory Specialist Problems
Water dripping into the conservatory through the roof panels, joints, or where the conservatory meets the house wall.
The conservatory becoming unbearably hot in summer, making it unusable during warm weather.
The conservatory becoming too cold to use comfortably during autumn and winter months.
The conservatory door dragging, sticking, or not locking securely when closed.