can anyone recommend a company that can repair my fleece as the damm dog i brought my wife as a bribe to let me go on next years challenge thought it would be fun to chew the main zip .

These folks are sound. But not cheap.They're specialists, and will do a first-class job.

Lancashire Sports Repairs

If you just want the zip replaced and there's no damage to the rest of the garment then locate your nearest dressmaker. They should do you a good job for a tenner plus the price of the zip.