I recently moved to the country side out in Wales. Where I live there is no mobile phone signal so I have to walk a mile up a steep hill to get any signal whatsoever.
Is there anything I can do about this?

I'm on Orange and also have a 3 phone. Will any other network guarantee signal?

Phone Orange and/or 3 there is a device you cab buy that works via your Internet connection to give you a good signal throughout your household. :)

I'm not sure what it's called but ive seen them before they are really good for people who live out in the countryside.