You could contact Al Anon on 0800 0086 811, if you are in the U.K. Other countries have a different number.
My late brother was an alcoholic - he drove, always went to work, he dressed well, and looked decent. At home, though, he drank from the minute he got in (4.30pm) until he fell asleep at midnight or so. He used to wet the bed (not nice for his wife), had Angina, he smoked too. He wouldn't admit that he had a problem. To outsiders, he was a happy, laughing, friendly person - but he must have been a nightmare to live with. They got into debt.
Your husband won't change unless he first admits that he needs to.
Good luck, I hope you get help - for yourself, if not for him.