MOST doorstep salespeople are reputable and professional and you may find their service useful.

However, some are rogues who can bring misery if you do not know how to spot their tactics. City of York Trading Standards is familiar with many of the most common examples of bogus selling to watch out for. Some examples are:

"I'm doing a survey". This seller aims to gain your confidence and get invited into your home where it's harder to refuse when the talk switches from research to selling.

"We've picked your home as a show house". The salesperson hopes you'll be flattered and the next thing you'll probably find is that you will be offered something 'at a very special price'.

"Buy one get one free". An artificially high quote can allow the salesperson to cut the deal by half.

"I'm here on behalf of the council". Always check an identity card. You might initially think the caller is on official business, but if he tries to sell you something or has no proof of identity, then beware.

"I advise on security" - if you are worried about security or safety, then contact your local police station or fire prevention officer.

"I noticed your roof needs repairing/guttering is leaking". Don't have jobs done on the spot by someone who calls at the door, never pay in advance, and read everything before signing it.

If you are paying more than £35 for anything, and you have not invited the trader to call, then check you have been given an agreement which sets out your cancellation rights - you normally have seven days to cancel the deal.

If you are an older person and need a reputable tradesperson to carry out work on your home, ask for a copy of the Home Services Directory.

The scheme, operated by Trading Standards, Age Concern (York) and the police provides a list of tradespeople such as plumbers, decorators and builders.

For a copy of the Home Services Directory and/or advice about home improvements, telephone Consumer Direct on 08454 040506.

If necessary, your inquiry or complaint will be forwarded to your local Trading Standards Service.

Updated: 12:20 Thursday, May 18, 2006