TREMONT — A blasting company is apologizing to three Mount Desert Island homeowners whose houses were pelted with rocks when a blast sent debris flying from a quarry.

David Eastman of Northern Drilling and Blasting in Exeter said his firm has been drilling off and on for a decade in a Tremont quarry without any problems. But one day last week, a blast sent rocks flying toward neighboring properties.

Homeowner Bruce Rich told the Bangor Daily News a large rock came through his bedroom wall and smashed the bedroom door, while other debris took out a wall of his outside workshop, smashed five lobster traps and punched several holes in his roof.

Eastman said he’s apologized to the homeowners and has been trying to arrange for repairs.