Average Hourly Cost: The average hourly cost of building retrofitting in the mechanical contractor category is estimated to be around $50 to $90 per hour depending on the complexity of the job.

Cost Breakdown: The cost breakdown for building retrofitting includes labor costs, material costs, and other costs such as hardware, tools, and equipment. Labor costs typically account for the majority of the total cost.

Factors That May Affect Cost: Several factors may affect the cost of building retrofitting, such as the type and quality of the accessory, the complexity of the job, the location, and the service provider. The type and quality of the accessory can significantly affect the cost, as higher quality accessories tend to be more expensive. The complexity of the job can also affect the cost, as more complex jobs require more time and resources to complete. The location of the job can also affect the cost, as some locations may require additional costs for travel and accommodations. Finally, the service provider can also affect the cost, as some service providers may charge higher rates than others.