ROGUE traders are regularly bullying vulnerable customers into having unnecessary work done, says West Yorkshire Trading Standards Service.
In the last 12 months the consumer watchdog received 4,100 complaints about home improvements from West Yorkshire people.
That is 16% of the national total.
Rogue traders may knock on doors asking for work such as driveway repairs, tree felling and other home improvements.
Consumers are being overcharged - and sometimes intimidated if they refuse to pay.
Consumers are also warned that it is sometimes difficult to know if they are dealing with traders who operate in a fair and honest way and who offer high standards of workmanship.
The Home Services Directory is a scheme set up by Trading Standards in West Yorkshire.
It provides people with the means of finding a local tradesperson they can trust.
By using a Home Service Directory member consumers can be confident of a fair deal at a fair price.
Kirklees councillor Tony Brice is a member of the Trading Standards Committee.
He said: "Trading Standards will not tolerate traders who are intent on ripping off customers, whether from shoddy workmanship, excessive pricing or bullying tactics."
For advice on finding a reputable trader phone Consumer Direct on 08454 04 05 06.