Check all the pickets on the fence to make sure no nails have come out or that none of them have started to rot. Hammer in any loose nails or replace with new ones. Where a picket is rotting or broken, put in a new one. Where you have sectional fencing, test each of the sections to check that it’s secure. If any are leaning, you’ll need to ensure they’re replaced in the ground properly so they’re straight.
Where there’s mildew on any sections of the fence, you’ll need to clean it off. You can use a purchased mildew cleaner for the job or go with soap and water and a scrub brush. Hose the area down afterward with clean water.
Periodically, you should also scrub the entire fence with soap and water to remove all the dirt and grime that’s built up. This will help the fence last longer. Be aware that you will always need to inspect the area where the wood fence meets the ground to check for any signs of rot. Rinse it clean with cold water from the hose. If you have one within range, you can also use a pressure washer on the wood fence.
Every few years, your wood fence will need to be repainted or stained. You can do this with a roller, a brush or a paint sprayer, but be aware that there can be problems using a sprayer, as there will inevitably be overspray. You can place cardboard behind the fence and above it, but the simpler solution will be to go with the brush or roller, as this will allow you to get into all the nooks and crannies of the fence, especially down where the fence meets the ground.
Put on two thin coats of paint or stain and give the first ample time to dry before you apply the second. If you haven’t used paint or stain on the fence, you should use sealer, and this should be reapplied every year to give the most effective protection. Don't skimp on the water seal. Buy the best you can afford to give really good protection for the wood fence.
Using caulk helps with wood fence maintenance. Every year, you should put caulk between the wood fence and concrete fence posts. This will keep out the moisture and help give the wood fence a much longer life. By performing all these tasks, you can greatly extend the life of your wood fence and keep it looking good for as long as it lasts.