We just moved into our home last summer and discovered a hive of bees in an inaccessible area beneath our front patio. I counted what seems like hundreds of them swarming in and out of the hole last summer, so obviously we avoid that area. Our problem is we intend to start construction this spring on landscaping and a new garage and I am afraid of the bees. We'll be digging up the land next to the patio under which they live. I am allergic to bee stings and would like to get rid of them before they start flying around.
Some beekeepers can lure bees out of one hive by bringing in a portable hive with another queen.
Then they take the new bees back to their apiary. I know such things have been done where I live. If you can't find a beekeeper, you may want to call an exterminator. I don't like killing bees, either, but if you are allergic it could be very serious if you get stung. When you weigh all the options, you may have to eradicate the bees.