The blast on Jan. 31 in the bedroom community of Airdrie caused significant damage to a duplex.
RCMP said at the time that they believed the explosion was drug-related.
Trevor Urquhart of Airdrie and Matthew Visser of St. Albert, Alta., are charged with arson.
They have also been charged with production of a controlled substance.
They are to appear in court Sept. 18.Suggest a correction