Reduce condensation on your windows

With winter on the way and temperatures dropping fast, condensation in your house is likely to increase, and may cause damp problems if left unattended – but there are some simple ways to reduce condensation on the inside of your windows.

This guide aims to help you understand the causes and consequences of condensation while providing practical tips and solutions for reducing its occurrence. With this in mind, you can then effectively combat condensation and maintain a healthy, comfortable living environment.

Why does condensation occur?

Condensation forms on windows because the surface of the glass gets cold as the temperature falls. Moisture in the air becomes a liquid, condensing as it cools down and forms water droplets on windows and other cold surfaces. This process is exacerbated in areas prone to high humidity levels, such as bathrooms and kitchens.

While condensation may seem like a minor inconvenience, its long term effects can lead to more serious problems. Continuous condensation, if left unchecked, can damage window frames, leading to issues like mould growth, wood rot and metal corrosion. Furthermore, prolonged exposure to mould spores can pose health risks, particularly for those with respiratory conditions.

Tips for reducing condensation

Here are the easiest ways to stop condensation in the short term as well as long-term solutions to stop condensation appearing in the first place.

1. Prioritise ventilation

Well-ventilated homes don’t have condensation problems because ventilation allows ‘moist air’ to escape before it turns into condensation. So the simplest thing to do is to create air flow and movement by opening a window or using an extractor fan, for example, when taking a shower.

2. Reduce moisture levels inside your property

There will always be some water vapour in the air, and you will add to it by breathing! But there are a few things you can do to stop increasing the moisture levels in the air, including drying your clothes outside, putting lids on your pans when cooking, fixing leaking taps, opening a window when taking a shower in your bathroom, or using an extractor fan when cooking in your kitchen. Keep interior temperatures consistent by using programmable thermostats and evenly distributing heat throughout the home. Use radiator reflectors to redirect heat towards the room and prevent heat loss through external walls.

3. Try window treatments

A quick way to stop condensation on the inside of windows is to consider installing thermal or insulating window treatments, such as curtains or blinds, to help regulate indoor temperatures and reduce heat loss through your windows. Another option is window film. This can help improve the insulation properties of windows, reducing heat loss and keeping window surfaces warmer.

It’s worth noting that good quality windows should have a ‘low E’ thermal coating on one of the panes of a glass within a double glazed unit, to help improve thermal insulation.

4. Improve window insulation

A longer-term solution to condensation problems is to increase the internal surface temperature of your windows. The simplest way to do this is to install double-glazing – as the inner pane of glass will be more insulated and a higher temperature than the outer pane. You can also keep heating on at a background low level to help maintain air and surface temperatures. 

If you live in a listed or conservation property that is single glazed, heritage window specialists such as Timbawood can replace the windows with slimline double glazing – which looks exactly like single glazing – while keeping the original frames in place.

At Timbawood, we specialise in bespoke timber windows and timber doors for period, listed and conservation properties, including sash windows, casement windows, custom French doors and timber fire doors. To speak to one of our specialists about your project, or to request a free quote or survey, please get in touch