Depends what you call a "good hechsher" .
No Peppermills chasidisha hechsher is on the store and not on the packaged items they sell. They can give you a book to look up hechsherem of the items being sold in their store. And then you will need to do research on that hechsher. Most specialty backing items have "good" hechsherem but not "heimish" or "chasidish".
You need to be very careful when shopping for such items many rare hechsherem may not be valid.
