The first thing to do when and if your house sale falls through is to take a deep breath and not to panic. Unfortunately the way in which the law works in England and Wales; until exchange of contracts your house sale can fall through at any time. Your first option might be to renegotiate with the buyer where appropriate. For example, if the survey has pick up on a problem that could easily be fixed. Negotiate to reduce the price of your house for what the rectification will cost. If this isn’t the problem or if that doesn’t work, go back to your estate agent and start over. However if this all happens at the last minute what do you do then, especially if you have your heart set on the house you’re moving to? One option is to use a company that will buy your house from you quickly. Doing this will mean you could still go ahead with your purchase, rather than have this fall through as well.