You spent real money on your wood fence. You chose the style, worked through the permit process, and watched it go up. The last thing you want is to look out the window a few years from now and see something warped, gray, and falling apart.
The good news is that knowing how to maintain a wood fence isn’t complicated. You don’t need to be handy. You don’t need special equipment. You just need a plan and a little consistency.
Here’s what we tell St. Louis homeowners who want their wood fence to look great for fifteen to twenty years.
Why Maintenance Matters More in St. Louis
Most of the country has to deal with either heat and humidity or cold and wet. St. Louis gets both. Summers are hot and muggy, which means wood absorbs moisture and expands. Winters bring freeze-thaw cycles that stress posts and cause ground movement. Spring brings prolonged wet periods that accelerate rot in unprotected wood.
That combination is hard on untreated wood. A fence that might last fifteen years in a drier climate can start deteriorating in eight to ten years here without proper care.
How to Maintain a Wood Fence: The Annual Routine
Clean It Once a Year
Dirt, mildew, and algae accumulate on wood fences, especially on the shaded side. A gentle wash with a garden hose and a mild cleaning solution handles most of it. For heavier buildup, a low-pressure power wash works well — just keep the pressure low enough that you’re not blasting away the wood grain.
Inspect Posts and Boards
Walk the fence line and look for soft spots, especially at the base of posts where they meet the soil. Press your thumb into the wood. Sound wood is firm. Rotting wood gives under pressure. Catching a soft post early means replacing one post instead of a whole section.
Look for cracked or split boards, loose fasteners, and any areas where the fence is leaning. Small problems are cheap to fix. Left alone, they become expensive ones.
Check the Gates
Gates take more stress than any other part of the fence. Check that hinges are tight and latches are working properly. A gate that sags or drags is putting extra stress on the post it hangs from. Tighten hardware and adjust as needed.
Staining and Sealing: The Most Important Step
Staining or sealing your wood fence every two to three years is the single most impactful thing you can do for its lifespan. A quality stain penetrates the wood and repels moisture. A sealer adds a protective layer on top.
For new fences, wait sixty to ninety days before applying stain. The wood needs time to dry and acclimate. Applying stain too early can cause adhesion problems.
For the St. Louis climate, look for products that offer UV protection in addition to moisture resistance. Bob Vila’s guide to staining a fence walks through technique and product selection in a way that’s practical for any homeowner. And if you want to understand how to restore a fence that’s already showing some age, Family Handyman’s fence restoration guide is worth a read.
When to Call a Professional
Some maintenance tasks are genuinely DIY-friendly. Cleaning and re-staining are straightforward. Tightening hardware is easy.
Post replacement is trickier. If a post is rotting at or below grade, pulling it and setting a new one correctly requires the right tools and technique. An improperly set post is often worse than the original problem.
If you have significant damage, sagging sections, or multiple posts that are soft, it’s worth having us take a look. Our wood fence page gives you a sense of the materials and construction we use, and we’re always available for a quick assessment.
A Simple Schedule
- Annually: Clean the fence, inspect posts and boards, check gate hardware
- Every 2 to 3 years: Re-stain or re-seal
- As needed: Replace damaged boards, tighten fasteners, address any rot immediately
That’s it. A couple of hours a year keeps a well-built wood fence looking great for a long time.
Schedule your free consultation today and let’s talk about what a quality wood fence looks like for your property.
Kirkwood Fence serves homeowners across St. Louis and surrounding communities including Kirkwood, Webster Groves, Chesterfield, Ladue, Ballwin, Manchester, Wildwood, Ellisville, and beyond.
