Yes. Expertise is not a synonym for "is accurate about topic", it's (ideally) better knowledge, better practices, experience, familiarity with arguments. Better epistemic practices are also alleged, but I think you should generally doubt that. That all indirectly leads to accuracy, but if they have an opinion, you can still ask them "why do you think so?", and they should be able to answer. A plumber may be able to give me more informed reasons about whether I should go for copper or plastic pipes (or something), and may favor an option. However:

If you have good reason to believe you know what exact process someone is using to answer your questions, that "screens off" expertise. If you know someone is just regurgiating the standard textbook advice, well, now you know he's exactly as good as the standard textbook advice, and your potential to do better increases. If you know an electrician is not considering pros and cons you yourself have considered, but going with the cheapest option, his expertise doesn't matter for that particular decision. And so on. Don't get too cocky, though.