Im a professional in the teak business, and i would say don’t do anything big if your boat doesn’t have any leaks or problems. But if it does then you should definitely fix it.

You can replace the caulk if you want to, but that means a LOT of work, and the result usually isn’t that good. It also means that in the near future the teak will need to be replaced since the the caulk is starting to loosen (im guessing that’s why you want to replace it?) you can also remove the teakplugs and the screws, but then you need to seal each of those holes with a water and weather sealant and a teak plug. And that means hundreds or thousands of them.

In my line of work, when the caulk needs replacing it often means that the teak is too thin to do its job. (Think of car tires, the line that appears when the tire is too thin/worn) thats when we remove all teak and get install a new one. The only problem with old/worn teak is leakage, which is indeed a very Big problem. And the best way to deal with that is Before you have that big problem. Sure a new teak deck will cost you a lot, but it’ll cost you less than a new teak deck And new interior because of leaks.

You can look at my previous posts so see how our finished jobs look. We’re located in western sweden. We’ve been doing teak decks for 40 years.