Do angels exist from heaven?

First of all, if God exists, there may be angels but if God does not exist, angels from heaven are most unlikely to exist. Then, assuming God exists and is both omniscient and omnipotent, you may wonder why he needs angels either as messengers or as allies against evil.
A reasonable conclusion is that whatever we believe about God, angels are unlikely to exist.

Angels exist from Heaven, Fallen angels did originate in heaven but no longer do. Weeping angels.... er... Originate from elsewhere..

Answer

No. Angels are mythical and so is heaven.