Wood-digesting insects and rot can damage logs if not properly maintained. Signs of problems include holes in logs, structural failures, and gaps between logs that allow water and insects to enter. An expert like Joe Pine Builders can inspect for issues, remove and replace damaged logs, media blast logs to remove old finishes, apply wood preservatives and new staining, and make other repairs like chinking, decking, and additions to protect the home. Immediate attention is needed if problems are found to prevent further structural damage.