Misted windows are a common problem with windows in your home. And, if you have a conservatory, you may notice problems with condensation in there too.

But why does this happen and how can you prevent condensation? In this article, we look at what the causes of condensation are and how to control it. Read on to find out more.

What is Condensation?

Condensation is the process of water vapour becoming liquid. When condensation appears on windows, it can be hard to work out where it is located.

Condensation on the outside actually means your double-glazed unit is working properly. It’s when you notice condensation and misting between the panes of glass that there could be a problem.

Causes of Condensation?

Changes in temperature

Depending on the time of year, for example, when the weather gets colder, you might consider using a heater in your conservatory. However, this may make condensation worse, due to the sudden rise in temperature.

Poor ventilation

If there is poor airflow in your conservatory, you’re more likely to notice a build-up of condensation. Keep your conservatory ventilated. You can do this by leaving your windows slightly ajar or installing an extractor fan.

High humidity levels

There are a few things that can increase humidity in your conservatory, including house plants. If you do want to have house plants in your conservatory, choose ones that absorb moisture from the air. These include plants such as peace lilies.

How to Control Condensation in Your Conservatory

Improving Ventilation

There are a few ways that you can increase ventilation in your conservatory.

Types of Ventilation

Mechanical ventilation

A roof vent or extractor fan will help to circulate the air in your conservatory.

Natural ventilation

Opening windows, doors, and roof vents are natural ways to ventilate your conservatory.

Hybrid systems

A combination of both mechanical and natural ventilation methods will help to reduce the risk of condensation.

Controlling Humidity

Controlling humidity is an important factor in decreasing condensation. Using humidifiers and dehumidifiers will help.

A humidifier will add moisture to the air when it is too dry. A dehumidifier will take moisture from the air when it is too humid.


Ensure that your conservatory is properly insulated. Depending on the age of your conservatory, consider:

  • replacing the roof
  • install blinds
  • wall insulation

Talk to us about the best solution for your conservatory.

Regular Cleaning and Maintenace

Cleaning the windows in your conservatory on a regular basis will help to reduce condensation. It will also help you to keep an eye on the condition of your windows, making it easier to spot any weaknesses in the frame or glass.

Expert help and advice

We hope that you’ve found this article a useful overview of how to control the condensation in your conservatory. For expert advice on controlling condensation in your conservatory, don’t hesitate to get in touch with us.