How often docks need repair depends on how much maintenance you provide, the type of dock you have, and how much wear and tear it gets. If you live in an area prone to violent storms, your dock will most likely need more frequent repairs. It's a good idea to have an annual dock inspection to check for any minor issues before they become big, expensive problems.
On average, a dock lasts between 10 and 20 years. However, some docks can last for decades with regular care, maintenance, and timely repairs. It really depends on the dock’s material and quality, how well you maintain it, how quickly you respond to issues, and the location.
In most cases, yes, pressure washing a dock is a great idea. Pressure washing costs $200 to $400 and is a smart service to add to your dock maintenance plan. It removes algae buildup, stains, and ground-in debris, helping to keep your dock in tip-top condition. However, some materials, such as vinyl and some composites, are unsuitable for pressure washing. In fact, pressure washing these surfaces can cause extensive damage that may be challenging to repair.
You can make your dock last longer by having a yearly dock inspection and maintenance service. Additionally, make sure you tend to problems as soon as they crop up so they don’t turn into more significant issues. Keep your dock clean and free of algae and debris, too. And make sure you use the correct protective products on the surface.