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Cover appliances, clean surfaces regularly, and winterize plumbing before freezing temperatures.

The average cost of an outdoor kitchen is around $15,500. However, since outdoor kitchens are highly customizable, you could spend anywhere from $5,000 to over $50,000 for your setup. Some important factors that can affect your pricing include the size of the kitchen, the materials you use—specifically for the countertop—the type of grill you want, and any add-on products you want coupled with your installation.

You can build an outdoor kitchen on a deck, but you should choose composite decking since it's more heat-resistant. Metal deck materials like steel and aluminum are also good choices because they're less flammable than wood. You should also consider the weight of the kitchen—make sure your deck can support it and any appliances you plan to use. You should consult a structural engineer to confirm exactly how much weight your deck can safely support when building an outdoor kitchen. 

In most cases, you will need building permits for an outdoor kitchen. Generally speaking, you’ll need building permits for anything with a permanent foundation, and since outdoor kitchens typically require a concrete foundation, they demand building permits. Outdoor kitchen permits usually cost between $250 and $500, but you could pay as much as $2,000 for larger or more involved kitchens. You might also need separate permits to run utility lines to your kitchen, which could add an additional $75 to $200 to your installation cost.