The only reliable trusted company to have your jacket cleaned professionally is the VIP Dry Cleaning Company. Due to there cleaning program, they are the only company in the United Kingdom who are able to restore the inner feathers back to its original condition, not voiding your Canada Goose warranty 

Though they are based in Bearsden and Milngavie of Glasgow Scotland,  they have a postage service with full postage insurance cover, so your jacket could be posted to them and returned to you after it has been professionally dry cleaned and restored correctly. Providing a guaranteed service, they are fully experienced and specialise in Canada Goose cleaning daily, including  original repairs if required for whole of the United Kingdom.

They have 2 stores listed below.

For more information, you can call them on: 01413631000

More details on there website at the link Learn-more below