well thats why is is marking his territory, he will do it intull he is neutered
That's correct. Marking is a basic instinct/learned behavior combo for all male dogs .... and many females. Removal of the sex hormones, via neutering or spaying, will remove the sexual/hormonal reasons for marking.

However ... be forewarned! ... the longer you wait to neuter your dog, the far greater the chance that he will continue to mark for the rest of his life, even after he is neutered. That is because, even though the hormones are gone, the HABIT if formed. He has been lifting his leg and marking for years, so he continues to do so forever.

I have five male dogs, all of them neutered. The ones that were neutered at 2 to 4 years old (all were rescues) mark everywhere. They truly disgust and infuriate me at times.