Opening the window in the summer is crucial for keeping cool and allowing ventilation in the home but it can be really frustrating when pesky bugs make their way indoors. However, keeping pests at bay with essential oils and dark lighting prevents the frustration of trying to get the bugs out. Nic Shacklock from Online-Bedrooms said: ‘It can be really frustrating when bugs like moths and flies enter our home while the window is open and it’s a nightmare trying to get them out. ‘The good news is there are a few things you can do to prevent them from entering in the first place. The obvious answer is to insert a mesh window screen. ‘If you don’t want the extra headache, simple tricks like keeping the light off and filling the room with natural essential oils are great at deterring insects.’ Lavender oil keeps insects away (Image: Getty) For those who want to keep their window open to cool down then it’s a good idea to keep the lights off. A lot of bugs, especially mosquitoes, are attracted to the light and will follow it. Households will have less chance of these pests entering their home if they get rid of any potential light for them to follow. 2. Lavender According to Nic, lavender is a scent that will help ‘keep insects away’. Households can add drops of lavender oil to water and spray around the house. Or it can be worth purchasing a few small lavender plants and placing them around the house. Peppermint oil can even help to deter mice and rats from house (Image: Getty) Peppermint oil is a ‘great and natural way to deter’ pests like spiders, mosquitos and moths and it will ‘make your house smell lovely’. Nic advised: ‘Add some peppermint oil to water and mix together, then use a spray bottle to disperse the liquid around the house focusing on windows and doors as these pests can’t stand the stuff.’ The scent may also help to keep mice and rats away from the property. Peppermint oil can also be applied to cotton balls and placed in points of entry areas. When different pests are most active (Image: EXPRESS) Looking for a new home, or just fancy a look? Add your postcode below or visit InYourArea This essential oil can be picked up for less than £1 online at Amazon . The cheapest Express.co.uk found this to be priced at is 49p. It can also be picked up at Etsy for £1.99. 4. Invest in mesh window screen Other countries have built-in mesh window screens to prevent flies from getting into the home. It’s not common for houses in the UK to have this but these screens can be purchased and installed. Households can also get temporary ones that can be removed when the UK heads into winter.