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*The Angi rating for Dock Building And Repair companies in Sumner, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Dock Building And Repair needs.

*The HomeAdvisor rating for Dock Building And Repair companies in Sumner, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Dock Building And Repair needs.

Last update on February 21, 2026

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Dock Building and Repair questions, answered by experts

Costs depend on dock type, size, materials, water depth, and labor.

Yes, many professionals handle necessary permits to ensure legal compliance.

Cedar wood is the best choice for a hardwood dock, as it is rot-resistant and does well in the water. Pressure-treated pine and spruce are two other solid options. Alternately, composite or waterproof plastic are materials commonly used for docks, and are frequently used in prefabricated kits.

In most areas, dock builders need some type of license. In some states, only a general construction license might be necessary, while a marine construction license is required in others. You can check online to see which is mandatory in your area, and then you can use Angi’s contractor licensing tool to make sure the company holds the proper license. Since dock construction is inherently dangerous, confirm with your builder that they are fully insured for everyone’s protection.

The cost to build a new dock can range widely, typically from $5,000 to $65,000, with an average cost around $15,500. The final price depends on several key factors, including the dock's size, the materials used, the complexity of the installation, the depth of the water, the type of dock being built, and whether it is in fresh or salt water.

The Sumner, MI homeowners’ guide to dock building and repairs

From average costs to expert advice, get all the answers you need to get your job done.

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