How to Handle Pergola or Gazebo Maintenance This Summer

By Shelley Frost

May 14, 2025

Relaxing under a pergola or gazebo gives you the best of both worlds: You get to enjoy the fresh air while staying cool in the shade. Regular pergola and gazebo maintenance ensures your backyard structure stays sturdy and beautiful year after year. Being exposed to the elements means your pergola or gazebo will get dirty and may show signs of wear or decay over time.

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How Do You Clean a Pergola or Gazebo?

From dust and pollen to leaves and twigs, plenty of outdoor debris can accumulate on your pergola or gazebo. Cleaning it off regularly keeps the structure looking tidy and can prevent damage over time. Aim to clean at least twice per year: in the spring before you use the shade and in the fall before winter weather hits. You may need to clean your pergola or gazebo more often if you have lots of trees in your yard.

To start, brush or blow the loose debris off the structure. You can use a long-handled broom or leaf blower to complete this pergola and gazebo maintenance step. You may need a ladder to reach the whole roof. Ensure the ladder is placed on a flat, stable area for safety.

Then, you can clean the structure with warm, soapy water. Use a soft-bristled brush to scrub the surface gently. When you're done, use a garden hose to spray off the cleaning solution and rinse the structure well.

Avoid any harsh cleaners or abrasive cleaning tools that can scratch the surface. It's also best to avoid pressure washers, as they can gouge or dent the material if the pressure is too high. If your pergola has vines growing on it, clean around the plants carefully to avoid harming them.

How Do You Protect a Pergola or Gazebo From the Elements?

Applying sealant to wooden structures every 2 to 3 years can help them resist rotting and last longer in the elements. If you have metal structures, you can find rust-resistant coatings that help prevent corrosion.

For the winter months, you can get covers for your pergola or gazebo to keep snow and ice off the structures. They're typically made of thick plastic material and come in different sizes to fit your sun shelter. Look for a cover that incorporates ventilation to avoid trapping moisture inside, which could cause damage.

Brushing snow off the structure, whether or not you have a cover on it, helps protect the structural integrity of your pergola or gazebo. The weight of snow and ice can be too much for the building, especially if you get a long spell of winter weather.

It's also a good idea to check the foundation and anchoring methods regularly to verify the shade structure is secure. Make sure the posts are securely anchored in the ground and are sturdy with no decay. Temporary or portable structures often use stakes or weights, which could move out of position and decrease the security of the structure.

To protect against wind damage, inspect the connections where the different sections meet. On a gazebo, examine the shingles or roofing materials to make sure there aren't any loose sections that could fly off in a strong wind.

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How Often Should You Stain a Wood Gazebo or Pergola?

Wood pergolas and gazebos offer a stunning natural look in your backyard, but the finish can fade or change over time. Restaining the wood restores its beauty and adds protection to the structure. The timing for restaining often depends on the climate and how harsh the elements are, but you can expect to refinish the wood every two or three years.

Other Pergola and Gazebo Maintenance Tasks

Your pergola and gazebo maintenance routine should also include regular inspections to look for problems like insect infestations. Wooden structures are susceptible to damage from termites and carpenter ants, which could ruin them completely. You may need to replace sections that become damaged by these types of insects. Allowing weeds and debris to build up around the base can invite pests.

It's also a good idea to check for spider webs, wasp's nests and other signs of insects making a home in your pergola. While those insects can be helpful in your backyard, you may not want them in your relaxation area. Taking care of the problem early is often easier and safer than trying to remove a massive wasp's nest.

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