How to Get Rid of Swallows in 3 Steps:
Only when nests are vacant, fully remove any old nests and thoroughly clean all droppings and feathers. Use a cleaning solution and consider adding a coat of fresh paint over surfaces to be treated. Since these birds are habitual, it is very important to remove old nests from unwanted areas so they can’t be reused.
Find the correct treatment option(s) for you:
Install Netting. Bird Netting is the only solution that we can guarantee will work 100% in the case of swallows. These birds are extremely difficult to treat, and this physical barrier entirely blocks off access to rafters, tricky building sides, and other desirable crevices or covered areas swallows wish to build their mud nests.
If netting is not an option, ultrasonic repellents, notably the Ultrason X and QuadBlaster PRO, have proven successful in deterring swallows from enclosed areas. Note: Sonic (recorded predator calls and distress cries) have little effect on barn swallows; because they build their nests in man-made structures, they feel secure. Ultrasonic devices, unlike sonic devices, rely on irritating frequencies rather than frightening noises.
Taste aversion liquid is very effective. Try painting 4 The Birds on surfaces, it is very effective when applied full-strength. Test on a small, inconspicuous area first to make certain it does not discolor paint.