The complaints were received by the Information Commissioner's Office and the Telephone Preference Service, prompting the former to issue an enforcement notice against Weatherseal Holdings, which also trades as Supreme-O-Glaze. This was in spite of the company assuring the ICO last year that it would discontinue the practice.
Weatherseal was found to be repeatedly making calls to individuals who were on the TPS or who had asked not to receive such calls. There was also the issue of staff not identifying themselves and refusing to give a company address or phone number to the individuals they were calling.
Mick Gorrill, assistant commissioner at the ICO, said: "The majority of us have received unsolicited marketing calls and they can be incredibly irritating.
"Weatherseal continues to make cold calls in breach of our enforcement notice we will not hesitate to use our full enforcement powers, as we demonstrated earlier this year when we prosecuted a company for sending unsolicited marketing faxes."
The company must now stop making unsolicited marketing calls within 35 days, and ensure that in future staff identify themselves properly.
Earlier this year Manchester based debt-recovery firm ADC Organisation was told to pay £2,526.25 in fines and costs after pleading guilty to six charges under the Privacy and Electronic Communications Regulations. It had been sending out spam faxes and thousands of businesses and individuals had complained about its behaviour.