Black and discolored window sills? We removed all problem areas and they are back to original, better than new! April 11, 2018 Tags: black window sills, Interior restoration, Interior windows, Lake Area Painting & Decorating, Mahtomedi Painting Contractor, Mildew Interior windows, North Oaks, Painting Contractor, Restore windows, sills, Stillwater painting contractor, window sills, wood
