How to Seal a Wooden Fence

Wood fences are exposed to all the elements.

Without a good sealant, a wood fence will not last near as long as a fence with a good sealant. Sealing a wood fence is a time consuming process, but if done properly, will protect your fence from weather, pollen and other harmful environmental elements. Depending on your climate and the brand of sealant used, you need to seal your wood fence every eight to 18 months.

Pour one cup of dishwashing liquid into a gallon bucket. Fill the remainder of the bucket with cool water.

Wash the fence with the cleaning solution and a medium-bristled brush. Rinse the fence with a water hose. Make sure you remove all the soap.

Pour one cup liquid laundry bleach into a gallon bucket. Fill the remainder of the bucket with cool water.

Wash areas of the fence with mildew with the bleach solution. Use a medium-bristled brush to scrub the mildew from the fence. Rinse the fence thoroughly with a water hose. Make sure you remove all the bleach. Allow the fence to dry completely.

Paint the sealer on the fence using a paint brush or paint sprayer. If you use a sprayer, follow the sealant manufacturer's instructions for thinning the product for use with a sprayer. Apply the sealer evenly on the fence. Allow the sealer to dry at least one day before wetting the fence.

Things You Will Need

  • Dishwashing liquid
  • Gallon bucket
  • Medium-bristled brush
  • Water hose
  • Liquid laundry bleach
  • Sealer
  • Paint brush or paint sprayer

Tip

  • Oil-based sealers cost a bit more but last longer than wax-based sealers.

Warning

  • Wear gloves and safety glasses when working with chemicals.

About the Author

Kaye Morris has over four years of technical writing experience as a curriculum design specialist and is a published fiction author. She has over 20 years of real estate development experience and received her Bachelor of Science in accounting from McNeese State University along with minors in programming and English.