Business Overview

Many boat owners have their boat taken out of the water and put into storage at season’s end. Before a boat can safely be stored for the offseason, however, it must be winterized. Winterization is the process of cleaning a boat, servicing its engines and systems, and covering the boat.

While some boat owners winterize their vessels themselves, many hire a business to do the work. Boaters may choose to have a business service their boat because they don’t have time to do it themselves, they don’t want to do it themselves, or they want other maintenance items checked at the end of the boating season.

Who is this business right for?

Anyone who loves boating and is mechanically inclined may enjoy running a boat winterization business. Business owners get to spend their days working on boats, and they don’t have to miss many days on the water since winterization is done at the end of the season. Mechanical skills are needed because winterization includes checking the engine oil, fuel, onboard plumbing, and other fluids.

This type of business can be run on the side since the work is seasonal and can be done part-time. Business owners who have primary jobs can supplement their income by winterizing boats during their off hours in the fall.

What happens during a typical day at a boat winterization business?

Winterizing a boat typically takes a few hours. The exact work done depends on the type of boat being winterized, but it usually involves the following:

  • Pulling the boat out of the water (if not previously done)
  • Cleaning the boat (possibly power-washing or polishing it)
  • Draining some of the fluids in the engine
  • Adding stabilizers and/or antifreeze to the engine fluids that are left
  • Servicing the other fluid and electrical systems on board
  • Covering the boat in shrink wrap
  • Placing the boat in storage (either inside or outside)

This work may be performed in an indoor workspace, outside, or at a customer’s location.

What is the target market?

Boat owners are the target market for a boat winterization business. Anyone who has a boat that’s larger than a dinghy, canoe, or kayak may need their boat winterized.

How does a boat winterization business make money?

A boat winterization business makes money by charging customers for winterizing their boats. Whether boat owners do any of the above-listed work themselves can affect how much is charged.

What is the growth potential for a boat winterization business?

Most boat winterization businesses are small, local operations. For example, Mike’s Marine Service is a typical marina that offers winterization and other services.

Businesses that expand beyond a defined region usually focus on a single aspect of winterization -- shrink-wrapping -- and offer the service for more than just boats. This is what Michael Enos did with Fast Wrap, a business that grew to dozens of locations by offering shrink-wrapping service for boats, amusement park rides, and other winterized equipment.

Getting Started

What are some skills and experiences that will help you build a successful boat winterization business?

At the very least, business owners must know how to winterize many different types of boats. Customers will have inboards, outboards, inboard/outboards, sailboats, and wooden boats, each with slightly different needs.

To learn how to winterize different boats, prospective business owners should spend a season working at a marina that offers winterization services. There are a number of free guides on boat winterization, but these are better used as references than training materials. They don’t cover everything that business owners may encounter. (Boat U.S. is a well-known organization that has published a thorough guide.)

What are the costs involved in opening a boat winterization business?

The startup costs for a boat winterization business are minimal. Business owners need:

  • Basic tools
  • A power washer
  • Fuel stabilizers, antifreeze, and similar fluids
  • Shrink wrap
  • Specialized shrink-wrapping tools

Business owners who have little initial capital can begin by borrowing tools if they don’t have the required ones already, and a power washer can be borrowed or rented as needed. The required fluids don’t cost much. Boating places the cost of taking care of fluids between $50 and $110.

The largest expense is usually the cost of shrink wrap and the specialized tools needed to apply it. Michael Enos spend $2,000 on shrink wrap and tools when winterizing his first boat (which was his personal airboat).

Business owners can save on building expenses by going to a client’s site rather than purchasing or leasing a work area. The tools and equipment will fit in any car, truck, or SUV, so it’s easy to offer services on-site.

What are the steps to start a boat winterization business?

Once you're ready to start your boat winterization business, follow these steps to ensure that your business is legally compliant and avoid wasting time and money as your business grows:

  1. Plan your business. A clear plan is essential for success as an entrepreneur. A few important topics to consider are your initial costs, your target market, and how long it will take you to break even.
  2. Form a legal entity. Establishing a legal business entity prevents you from being personally liable if your boat winterization business is sued.
  3. Register for taxes. You will need to register for a variety of state and federal taxes before you can open for business.
  4. Open a business bank account. A dedicated checking account for your boat winterization business keeps your finances organized and makes your business appear more professional to your customers.
  5. Set up business accounting. Recording your various expenses and sources of income is critical to understanding the financial performance of your business. Keeping accurate and detailed accounts also greatly simplifies your annual tax filing.
  6. Obtain necessary permits and licenses. Failure to acquire necessary permits and licenses can result in hefty fines, or even cause your business to be shut down.
  7. Get business insurance. Insurance is highly recommended for all business owners. If you hire employees, workers compensation insurance may be a legal requirement in your state.
  8. Define your brand. Your brand is what your company stands for, as well as how your business is perceived by the public. A strong brand will help your business stand out from competitors.
  9. Establish a web presence. A business website allows customers to learn more about your company and the products or services you offer. You can also use social media to attract new clients or customers.

Select your state below for an in-depth guide on completing each of these steps in your home state.

Where can I find a business mentor?

One of the greatest resources an entrepreneur can have is quality mentorship. As you start planning your business, connect with a free business resource near you to get the help you need.

Having a support network in place to turn to during tough times is a major factor of success for new business owners.

Recommended: offers video courses and a supportive online community of like-minded entrepreneurs. Try one month membership for for free.

What are some insider tips for jump starting a boat winterization business?

Going to customers’ locations has several benefits beyond merely keeping startup costs low. By not procuring a specific workspace, business owners:

  • Keep their overhead low, which allows them to undercut the competition
  • Offer a more convenient service, which can become a major selling point
  • Make themselves visible in boating areas, which leads to an increased number of clients

Growing Your Business

How to promote & market a boat winterization business

Since boat winterization is a seasonal business, a concentrated marketing effort should be made from late summer through late fall. During this time, business owners can post flyers, purchase ads in local papers, and conduct local search engine optimization campaigns to reach potential customers.

Recommended: Get started with local advertising for your business with a $300 credit from Yelp.

How to keep customers coming back

To increase customer retention, business owners should contact previous customers in late summer. Sending direct mail or even calling customers to schedule winterizations can keep those customers from switching to a competitor’s services.

How and when to build a team

Many business owners start out by themselves and a number never hire employees. Those who do want to grow the business usually bring on seasonal workers to help meet the demand in fall. Having at least one employee also makes shrink-wrapping boats go much faster.

Legal Considerations

State & Local Business Licensing Requirements

Certain state permits and licenses may be needed to operate a boat winterization service. Learn more about licensing requirements in your state by visiting SBA’s reference to state licenses and permits.

Most businesses are required to collect sales tax on the goods or services they provide. To learn more about how sales tax will affect your business, check out our informative guide, Sales Tax for Small Businesses.

For more information about local licenses and permits:

Certificate of Occupancy

A boat winterization service can be run out of a storefront or small office. Businesses operating out of a physical location typically require a Certificate of Occupancy (CO).  A CO confirms that all building codes, zoning laws and government regulations have been met.

  • If you plan to lease space:
    • It is generally the landlord’s responsibility to obtain a CO.
    • Before leasing, confirm that your landlord has or can obtain a valid CO that is applicable to a boat winterization service.
    • After a major renovation, a new CO often needs to be issued. If your place of business will be renovated before opening, it is recommended to include language in your lease agreement stating that lease payments will not commence until a valid CO is issued.
  • If you plan to purchase or build your own location:
    • You will be responsible for obtaining a valid CO from a local government authority.
    • Review all building codes and zoning requirements for you business’ location to ensure your boat winterization service will be in compliance and able to obtain a CO.

Reduce Personal Liability

Structuring your business as a limited liability company (LLC) ensures your personal assets are protected in the event your business is sued.

What is an LLC?

Form an LLC in 5 easy steps

Earning Potential

How much can you charge customers?

The average amount charged to winterize a boat is $300. Smaller outboards can be as little as $100, while cabin cruisers can run $600 or more.

The fees charged by Sportsman's Boat Storage shows how the cost to winterize different boats can vary. The storage center offers winterization starting at $250. Additional fees are charged for extra services, such as:

  • Changing oil ($75 to $110)
  • Winterizing a freshwater or porta potty system (cost varies)
  • Winterizing a ballast system ($50 per pump)
  • Adding a fuel stabilizer ($14.21 average)

What are the ongoing expenses for a boat winterization business?

The ongoing expenses for a boat winterization business are low. Business owners need to purchase supplies as they use fluids and shrink wrap. Those that have employees must pay salaries and any commercial space that’s used must be paid for.

How much profit can a boat winterization business make?

With an average price of $300, a boat winterization business can bring in a substantial seasonal profit. Winterizing just two boats a day could result in a daily revenue of $600 throughout the fall.

How can you make your business more profitable?

Many boat winterization businesses also offer basic small boat repairs. To add repair services, business owners should take a marine engine repair course. Annapolis School of Seamanship, Universal Technical Institute, and many other schools offer classes.

Next Steps

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