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A good cap will minimize exposure to water of the brick work under it, thereby increasing your long term cost savings. It will cost you $300 to $500 to purchase the cap and rent a hoist and safety harness to get the cap on top of the chimney. A mason or bricklayer will charge $1,000 to $1,500 to do the job.
1 HomeAdvisor.com puts the cost of brick repair nationwide at roughly $1,300 to $2,000, with some repairs costing close to $4,000.  Smaller brick repair jobs, such as repairing cracks in 10 or fewer bricks, often costs less than $500.