The cost of installing a double sink vanity can vary depending on various factors such as the location, the complexity of the installation, the quality of materials chosen, and the specific contractor or service provider hired. Additionally, prices can vary based on local market conditions and labor costs.
To get a more accurate estimate, it is recommended to contact local contractors or bathroom remodeling professionals and request quotes based on your specific requirements. They will consider factors such as the size of the vanity, plumbing modifications needed, electrical work, countertop material, faucet installation, and any additional features or customizations you desire.