Repair, Paint, And Seal An Untreated Wooden Fence

If the untreated wooden fence surrounding your property has several small knotholes in its surface, fill them with putty by completing the project below. Afterward, apply a coat of paint and wood sealer to each side of the fence to provide the structure with an improved appearance and to protect the wood from damage.


  • bucket of soapy water
  • deck brush
  • stiff-bristled hand brush
  • wood cleaning agent
  • water hose
  • tube of wood putty
  • caulk gun
  • flexible putty knife
  • hand sander
  • fine grit sanding sheet
  • tack cloth
  • drop cloths
  • wooden mixing stick
  • exterior paint
  • paint tray
  • paint roller and frame
  • extension handle 
  • narrow paintbrush
  • exterior wood sealer

Clean Both Sides Of The Fence And Fill Knotholes

After dipping a deck brush into a bucket of soapy water, use the tool to remove surface stains from both sides of the fence. If stains are persistent and cannot be eliminated with the cleaning mixture that you have prepared, apply a wood cleaning agent to them. Clean small grooves in the fence's surface with a stiff-bristled hand brush. Rinse both sides of the fence with a water hose. When the wood has dried, use a caulk gun to fill each knothole with wood putty. Smooth out the surface of the putty with a flexible putty knife.

The wood putty may take several hours to harden. Once this occurs, lightly sand the surface of the putty with a hand sander that has a fine grit sanding sheet secured to it. Wipe away sanding residue with a tack cloth.

Paint And Seal The Wood

Use drop cloths to line the property that is adjacent to the fence. Open a can of exterior paint and stir the contents for a couple minutes. Fill a paint tray with paint and apply paint to one side of the fence with a paint roller. Move the roller across the wood in straight lines. Use a narrow paintbrush to cover small details in the wood with paint. Apply paint to the opposite side of the fence by completing the same instructions.

Inspect both sides of the fence once the paint has dried. Add a second coat of paint if any portions of the wood were not covered sufficiently. After the second coat of paint has dried, pour wood sealer into a clean paint tray. Use a clean paint roller to apply sealer to both sides of the fence. The sealer will provide the fence with a glossy appearance and will prevent moisture from penetrating the fence's surface.

Contact a company like Harrington & Company to learn more.