How to Replace Floats Under a Dock

January 17, 2025

Floating docks are a staple for waterfront properties, marinas, and recreational spaces. Over time, however, issues like waterlogged dock floats, old floats, or sagging docks can arise, requiring prompt floating dock repair. For waterfront property owners, replacing dock floats is essential for maintaining the overall functionality and safety of these structures. Regular maintenance of docks is also crucial to ensure structural integrity and longevity, enhancing safety, security, and usability.

In this guide, we’ll walk you through how to replace dock floats and identify signs of float damage, with some tips for maintaining your dock’s longevity.

Why Replace Dock Floats?

Dock floats are the foundation of a floating dock, keeping it buoyant and level. Over time, these floats may become damaged or waterlogged due to punctures, wear and tear, or environmental factors such as saltwater exposure. Saltwater can accelerate the deterioration of dock floats, making it crucial to use materials that can withstand harsh marine conditions.

Properly functioning floats maintain a level surface, enhancing the dock’s visual appeal, structural integrity, and functionality. A sagging or unstable dock can pose safety hazards and reduce the usability of the dock.

When faced with a sagging dock, you may wonder whether to repair or replace the floats. If you’re unsure which route to take, don’t hesitate to reach out to our experts at Carolina Waterworks for guidance!

Assess your dock for these telltale signs:

  • Sagging Dock: A clear indicator that one or more floats have failed.
  • Cracks or Drain Holes in Floats: Visible damage can allow water to seep in.
  • Unusual Dock Movement: Floats in poor condition may cause instability.
  • Lower Freeboard: Reduced clearance between the dock surface and the waterline suggests compromised buoyancy.

If you begin to notice these issues, it’s time for a dock float replacement.

Choosing the Right Floats for Your Floating Dock

Above all else, the first critical step is choosing your dock floats. When selecting the right dock floats, you want ones that provide unwavering stability and long-lasting performance. 

The floating docks from Carolina Waterworks, Inc. are designed for effortless installation and offer the highest lift capacity for avid boaters, marina operators, and waterfront residents. With the top buoyancy rating on the market, our floats are durable, impact-resistant, eco-friendly, and resistant to marine life and saltwater environments. We offer a diverse range of lift capacities and sizes to perfectly fit any boat or dock, from small to large. Plus, they’re backed by a 12-year warranty. Ensuring you start with top-notch, reliable dock floats is key for longevity.

How to Replace Dock Floats in Water

Replacing dock floats might seem daunting, but with the right tools and steps, it’s a manageable DIY project, or you can task professional repair services. Maintaining a clean and organized construction site during the replacement process helps ensure efficiency and professionalism.

You’ll need the following tools:

  • Socket wrenches
  • Drill
  • Marine-grade screws or bolts
  • Replacement dock floats
  • Safety gear (life jacket, gloves, and goggles)

Inspect and Plan

Evaluate the dock’s structure and determine which floats need replacement. Are any parts coming loose? Do certain areas sag? Count the number of floats required and ensure compatibility with your dock system.

If you’re replacing most or all of them, we have a helpful blog on calculating how many you need. Consulting a professional at Carolina Waterworks, Inc. for expert advice during the inspection and planning phase can also be beneficial—we are happy to help!

Elevate the Dock

To access the floats, the dock must be partially lifted out of the water. For smaller docks, use levers or manual lifts. You can also elevate sections of the dock using inflatable bags.

Remove Damaged Floats

Locate the attachment points of the damaged floats. Use a wrench or drill to unfasten the bolts securing the floats to the dock frame. Carefully detach the float and set it aside.

Install New Floats

Align the new float under the dock frame. Secure the float with marine-grade bolts or screws. Double-check the alignment to ensure the dock remains level. Repeat the process for additional dock floats.

Test Your Work

After replacing the floats, gently lower the edge of the dock back into the water. Check for levelness and stability and adjust as needed to ensure optimal buoyancy. That’s it!

Tips for Preventing Future Float Damage

Maintaining your dock floats can save time and money in the long run. Addressing minor damages early can prevent significant wear from weather and water exposure.

Here’s a little checklist to make routine inspections:

  • Inspect Regularly: Check the entire dock for cracks or water intrusion every season.
  • Routine Dock Repairs: This is crucial for maintaining the functionality and safety of your waterfront structures, especially floating docks.
  • Use Protective Coatings: Apply UV-resistant coatings to prevent sun damage.
  • Avoid Overloading: Adhere to the weight capacity of your dock.
  • Upgrade Materials: Invest in high-quality floating docks.

Upgrade Your Dock with Dock Floats from Carolina Waterworks, Inc.

Replacing dock floats is a vital part of dock maintenance, and with the right approach, it can be done efficiently and effectively.

At Carolina Waterworks, we provide durable, reliable dock solutions for residential and commercial waterfronts. Our wide range of products includes top-quality dock floats, hardware, and accessories designed to withstand harsh marine conditions—explore our comprehensive product catalog of marine product solutions. Trust Carolina Waterworks to provide top-notch products and support for all your floating dock repair and replacement needs. 

Need assistance? Contact us today, and let our team of professionals help you find the perfect products for long-lasting dock repairs!

FAQs About Replacing Dock Floats

How often should I replace dock floats?

With proper care, high-quality floats can last 10–15 years. Replace them when signs of waterlogging or damage appear.

Can I do a floating dock repair myself?

Yes, with the right tools and guidance, it’s an excellent DIY-friendly task. However, professional services are recommended for large or complex docks.

What is the cost of replacement floats?

Prices vary depending on size and material. Check Carolina Waterworks’ products for affordable options.

What materials are best for dock floats?

Dock floats are commonly made from polyethylene, encapsulated foam, or fiberglass. Polyethylene is durable, UV-resistant, and maintenance-free, making it a popular choice for most dock owners.

Are dock floats compatible with all dock types?

Dock floats are versatile and can be used with most dock types, including modular, stationary, and floating docks. However, it’s essential to choose floats designed to support your dock’s size and weight. Carolina Waterworks, Inc. offers a diverse range of lift capacities and sizes to perfectly fit any boat or dock, from small to large.

What maintenance do dock floats require?

Dock floats are generally low-maintenance but should be inspected regularly for damage, debris, or algae buildup. Cleaning with mild soap and water and addressing minor repairs promptly can extend their lifespan.

 

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Who We Are

Carolina Waterworks is a quality manufacturer of dock floats, commercial/residential gangways, floating docks, buoys, and Safe Haven drive-on boat and jet ski lifts.

We are a privately owned company with over 30 years of experience in the marine industry.

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