A new home is built for comfort, warmth and energy efficiency. During the first year or so, however, you may occasionally see condensation on windows or other cooler surfaces.

This is a normal part of the home's settling in process. Water used in construction materials, including plaster, concrete and timber, gradually dries out after you move in. Everyday activities such as cooking, showering and drying laundry also add moisture to the air.

The key is to give that moisture somewhere to go. A combination of ventilation, sensible heating and a few everyday habits will help keep your home feeling fresh and reduce the risk of mould.

Everyday ways to manage moisture

• Switch on the kitchen extractor fan before you start cooking and leave it running afterwards. Closing the kitchen door helps the fan remove steam more effectively.
• Let your bathroom ventilation do its job. It may increase automatically when the light is turned on and should remain on during and after showers or baths.
• Leave trickle vents open where possible, especially in bathrooms and bedrooms. They are designed to provide a gentle flow of fresh air without needing to keep a window fully open.
• Make the most of warmer weather by opening windows regularly. Morning and evening are often good times to air your home on hot days, helping to refresh indoor air and release excess moisture.
• In cooler months, avoid allowing rooms to become very cold. A regular, even level of heating makes it less likely that moisture in the air will settle on windows, walls or ceilings. Homes with heat pumps or underfloor heating usually perform best when operated steadily rather than in short bursts at high temperatures.
• Dry clothes outside whenever you can. If indoor drying is unavoidable, choose a well-ventilated room and use the extractor fan or open a trickle vent. Avoid placing wet clothes directly on radiators.
• Remove any visible moisture from windowsills or glass with a cloth. This is particularly useful first thing in the morning.

Why ventilation matters in a new home

A new build home is designed to be well insulated, which helps keep warmth inside. Ventilation works alongside that insulation by replacing humid indoor air with fresh air.

Using extractor fans, opening trickle vents and airing your home at suitable times does not mean sacrificing comfort. These small actions can help protect your home and create a healthier indoor environment.

If you are concerned about damp or mould

Mould can develop when excess moisture remains on surfaces for a prolonged period. If you notice mould, persistent condensation or signs of damp, please contact the Tilia Homes Customer Services team promptly.

We will look into the issue and, where appropriate, arrange for the affected area to be inspected. Our assessment may consider factors such as ventilation, condensation, plumbing, leaks or a possible building defect. We will explain our findings and outline any next steps.

Please let us know if there are particular health concerns in your household, including respiratory conditions, or if the mould appears extensive. This will help us understand the situation fully.

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