Plumbing or a blocked drainage emergency - make us your first port of call! In these cases, the gullies and soakaways may be working but just need time to be able to cope with the levels of water run off. Saturday hours by appointment! Let us know how we can help you by calling. Check out our tool selection guide or chat with a drain brain! Did you know you can unblock an outside drain using caustic soda? well, you can –.