Services bought in a doorstep sale
Doorstep selling is when you buy something from someone face-to-face but away from trade premises, for example, at home or from a salesperson at your workplace. If you buy something from a doorstep sale, as well as the usual rights you have when you buy from a shop, you also have the right to a seven-day 'cooling off' period. To have this right, the goods or service you buy must cost over £35. It does not matter whether or not you invited the salesperson into your home.
The cooling off period gives you seven days in which you can change your mind and cancel your order, without having to pay anything. The sales person must tell you that you have this right, in writing, when you place your order. If they don't, you can cancel your order at any time and get your money back - even if this is after seven days. If a trader doesn't tell you about your right to cancel an order made in a doorstep sale, you should complain to Consumer Direct - see under the heading Further help.
If you asked in writing for the services to be carried out before the end of the cooling off period, you will normally have to pay a reasonable amount for them, according to the contract. This is the case even if you later cancel the contract during the cooling off period.
If a trader comes to your home and then ignores your request to leave, they may be committing a criminal offence. This also applies if they come back or contact you by phone or email when you've asked them not to. You should report these traders to Consumer Direct - see under the heading Further help for details.
In England and Wales, for more information about your rights to cancel an agreement made in a doorstep sale, see Buying on the doorstep in Consumer Fact Sheets.
Even if you don't have the right to cancel your order, or want to cancel after seven days, the trader may still agree to cancel it. However, they would be entitled to charge a cancellation fee, or to keep your deposit.
http://www.adviceguide.org.uk/index/your_world/consumer_affairs/buying_services_your_rights.htm#services_bought_in_a_doorstep_sale