I know that every homeowner has same problem in Autumn and Winter set in year after year.
To prevent your house form spider invasion you need to take some simple actions !
First thing is to patch up all cracks and hols leading their way inside!
Cover vents and chimneys with insect screens .
Keep your outdoor lights off.
Keep your house clean and tidy. Vacuum spiders and cobwebs.
There is also some natural ways to fight against spiders!
1.Peppermint and eucalyptus oil-use standard spray bottle field with water add 20-25 drops peppermint or eucalyptus oil.Mix together and spray down cracks and corners.
2.Horse chestnuts – poke few hols in and leave in each corner.Chestnuts leave a cent that repels spiders!
3.White vinegar – mix equal parts of water and white vinegar in a spray bottle.Mix together and apply to any area which spiders gather!