Fences are the unsung heroes of outdoor privacy, security, and boundary definition. However, exposure to the elements, age, or physical impact can leave them leaning or wobbly - a common issue many homeowners face. Fortunately, there’s a robust solution that doesn’t always involve replacing the entire fence panel or post: a concrete repair spur. This guide will walk you through the steps of stabilising your fence with a concrete repair spur, ensuring it stands firm for years to come.

Understanding Concrete Repair Spurs

A concrete repair spur is essentially a heavy-duty support that strengthens weakened or damaged fence posts. Made from precast concrete, these spurs are designed to buttress the existing post, providing stability without the need for a complete replacement. They are particularly useful in windy areas or where the fence post has rotted at the base.

When to Use a Concrete Repair Spur

Consider a repair spur if your fence post is still in good condition above ground but has become unstable at its base. This solution is cost-effective, minimally invasive, and environmentally friendly, as it reduces the need for new timber.

Step-by-Step Guide: Fixing Your Wobbly Fence

Materials and Tools

Before starting, gather the necessary materials and tools. You'll need:

  • A concrete repair spur (ensure it’s the correct height and width for your fence post),
  • Bag of postcrete,
  • Spirit level,
  • Sledgehammer or club hammer,
  • Drill with a masonry bit,
  • Bolts and washers (suitable for outdoor use),
  • Spade or post hole digger,
  • Bucket or wheelbarrow (for mixing the postcrete).

Step 1: Prepare the Area

Begin by clearing any debris around the base of the wobbly fence post. If plants or shrubs are obstructing access, carefully prune them back. Use your spade to dig a trench on the side of the post that faces the direction in which the fence is leaning. The trench should be as deep as the spur and about twice its width.

Step 2: Position the Repair Spur

Place the concrete repair spur against the fence post, ensuring that the slots or holes in the spur line up with the centre of the post. Using a spirit level, check that the spur is perfectly vertical.

Step 3: Secure the Spur

Temporarily secure the repair spur to the post using clamps or have someone hold it in place. Drill through the post and into the spur's holes, then fasten with the bolts and washers. Ensure the bolts are tightened securely, drawing the post and the spur tightly together.

Step 4: Mix and Pour Postcrete

Mix postcrete in a bucket or wheelbarrow following the manufacturer's instructions. Fill the trench around the base of the repair spur with the postcrete mix, ensuring it’s packed tightly without any air pockets. Use your spirit level again to check the spur (and therefore the fence post) is still straight.

Step 5: Finishing Touches

Wait for the specified setting time on the postcrete package before removing any supports or clamps. This typically takes around 10 to 20 minutes, but full curing strength is achieved over several hours or days, depending on weather conditions. Once set, you can refill the remainder of the hole with soil and reposition any landscaping features moved during the process.

Maintenance Tips

While a concrete repair spur provides substantial support, regular maintenance ensures your fence’s longevity. Inspect your fence annually for signs of wear or instability, especially after severe weather conditions. Applying a wood preservative to your fence posts can also prevent rot and extend their life.


A wobbly fence doesn’t have to mean a complete overhaul of your garden’s boundary. With a concrete repair spur, you can provide a sturdy, lasting fix that saves time, money, and resources. This DIY project not only helps in maintaining the structural integrity of your fence but also in preserving its aesthetic appeal. Remember, taking the time to repair your fence correctly can prevent future issues and keep your garden secure and looking great.