Masonry or brick chimneys cost between $300 and $1,500 to repair, while prefab chimneys cost between $250 and $1,200. Professionals typically charge between $50 and $200 per hour to repair a chimney.

If the mortar—the cement-like stuff between the bricks—on your chimney is missing or crumbling, the structure of your chimney has been compromised and it needs immediate repair and possible ...