How to Avoid Common Boat Repair Mistakes

Before letting a mechanic touch your boat, make sure they give you a repair warranty. This should cover parts and labor for at least 30 days.

Inspecting the hull for signs of serious damage or rot would be best. Check the bilge pump, rigging, and deck hardware for signs of wear.

On a fiberglass boat long enough, you’ll surely encounter some damage. It might be a small scratch, gouge, or even a hole in the gel coat that needs to be repaired. Whatever the cause, it’s important to know how to make these repairs yourself or have a repair professional do them for you. The most important thing is to take the time and do the job right. It’s worth the effort because it will result in a smooth surface that few will ever notice.

The first step is to clean the damaged area. This is critical because it’ll help the repair materials bond with the existing fiberglass. Using a mild soap and water solution, wash the surface of the damaged fiberglass to remove any dirt or grime. Next, dry the area thoroughly with a cloth or towel.

Now that the surface is clean, you’ll need to prepare the area where the fiberglass repair will be made. If it’s a small scratch or gouge, you can use acetone to thin the gel coat layer and lightly sand the area. For deeper dents or gouges, you’ll need to use a power grinder with a V-shaped tool to cut grooves in the fiberglass surface and eliminate any sharp edges.

Once you’ve rounded out the edges of the deep gouges, apply a fiberglass patch to the area and then sand the patch down. After the area is sanded, you can apply a new layer of gel coat to restore the shine. To achieve a nice finish, buff the gel coat with a wool buffing pad and begin with light pressure that gradually increases.

Leaks in fiberglass boats are fairly common, and the most important thing is to find the source of the leak as quickly as possible before it worsens. If the leak isn’t obvious, it might be necessary to drain the bilge and look in hard-to-reach places, like underneath the hull liner or inside closed compartments. You may also need to check the stringers, which are the joists located under the deck that support the boat’s structure. Often, they will need to be replaced if they’re exposed to excessive sunlight, which can cause them to deform and weaken.


A boat is made of wood, and it is no secret that wood is susceptible to water damage. It is important to keep up with regular maintenance on your woodwork to prevent it from deteriorating. If you notice any damage, a marine technician can repair it and restore your boat’s beauty.

Depending on the type of damage, a marine technician may be able to use cold solder or hot welding. Hot welding is a process that uses high temperatures to fuse metals together. It is not as durable as cold solder, but it is still an effective method for repairing boats. It is also a good idea to use a caulking compound on any areas where there is a gap or crack.

Marine technicians often work with wood, fiberglass, and other materials to repair and upgrade vessels. They must have a variety of skills to work on different types of boats, and they should be able to read blueprints and other instructions. In addition, they must be able to handle tools and parts that can be very sharp or dangerous.

Another important skill that marine technicians need to have is the ability to track down and repair leaks. A leak can ruin your boat’s interior, and it is crucial to find the source of the leak and fix it as soon as possible. A professional marine technician will be able to track down the leak and repair it quickly, so you can get back on the water.

Boat repair is a complex job, and it’s best left to professionals. A qualified marine technician will be able to fix any problems your vessel may have and create a safe environment for you and your family to enjoy.


Propellers are highly intricate, brittle pieces that require special skills to repair. That being said, they are an important piece of equipment because they connect the engine to the water just as tires connect a car to the road.

A poorly performing prop can rob the engine of power, leading to poor performance, vibration, and even potential damage to the motor. That’s why it’s important to have any damaged props repaired as soon as possible.

The cost of propeller repair depends on the type of damage, the style of the prop, and the material the propeller is made of. Aluminum props are less expensive to repair than stainless steel ones.

It also depends on the shop that you take your prop to. Some shops are more expensive than others. In some cases, it might be cheaper to buy a new prop and save the old one for a spare.

Bent props, knicking, and pitting are not usually repairable. The prop may still run, but the damage will continue to eat away at it, and the blades may eventually break off.

If you aren’t sure if a prop is worth fixing, try this: Affix the jaws of one adjustable wrench on the edge of the prop adjacent to the ding, and hold the other wrench firmly on the ding itself. Slowly apply pressure to the wrenches, and you’ll likely be able to work most, if not all, of the ding out.

It’s also a good idea to get in the habit of inspecting your prop during boating season, especially if you use your boat for fishing or diving. Remove the engine kill switch and turn your prop with the transmission in neutral (be safe; make sure the boat isn’t moving). Look for any signs of damage, including small nicks or abrasions.

Tiny nicks can create stress risers, areas of the propeller that are more prone to cracking as they move through the water. You can try to smooth these out with a file, but be careful not to grind them too much, or you’ll alter the geometry of the blades and kill efficiency.