Chimney cleaning and cap installation is a necessary task for any chimney sweep and can be an expensive service. The average hourly cost for a chimney sweep is usually between $75 and $150 per hour, depending on the complexity of the job. The cost breakdown for chimney cleaning and cap installation includes the cost of the cap, the cost of labor, and the cost of disposal of debris, if applicable. Factors that may affect the cost include the type and quality of the accessory, the complexity of the job, and the location and service provider. The type and quality of the accessory can affect the cost significantly, as higher quality materials may be more expensive. The complexity of the job is also a factor, as the more complex the job, the more time and labor is required, and the higher the cost. The location and service provider can also affect the cost, as some service providers may charge more than others due to their experience and expertise.