Condensation needs to be dealt with or managed if it cannot be entirely prevented.  Mold and mildew will use condensation to help them get established and grow, and this will create health issues as well as appear unsightly and will lead to rotten woodwork and damaged window frames.

You can reduce condensation by increasing ventilation and paying special attention to areas where condensation is always at risk f being formed – typically the kitchen and bathroom.  Make sure you use bathroom fans and kitchen extractors whenever you are bathing or cooking, and you will probably notice a distinct improvement immediately.  Using air conditioners will also cause the air to become less humid while making sure you enjoy a quick shower and only run full washing loads in your dishwasher and washing machines will also help.

If these measures do not help you with the issue, then it’s time to bring in an expert.

Sometimes you may experience condensation in your sealed window units, between the panes of glass which make up the assembly.  If you have this problem, you have a failed window unit and you will need to replace the glazing and possibly the entire unit.  Make sure your sealed windows carry a guarantee for at least 10 years – one good mark of quality is the IGCC – the Insulation Glass Certification Council.