Average Hourly Cost: The average hourly cost for marble floor sealing by a marble contractor in 2023 is approximately $50 - $75 per hour. This price may vary depending on the complexity of the job and the location of the service provider.

Cost Breakdown: The cost breakdown for marble floor sealing includes the cost of labor, materials, and any additional services that may be required. Labor costs typically range from $35 - $50 per hour, while materials typically cost around $15 - $25 per hour, depending on the type and quality of the accessory used.

Factors Affecting Cost: Several factors can affect the cost of marble floor sealing, such as the type and quality of the accessory used, the complexity of the job, and the location of the service provider. The more complex the job, the higher the cost, and the more expensive the materials used, the higher the cost. Additionally, the location of the service provider can also have an effect on the cost, as service providers in more densely populated areas may charge more for their services.