Fence posts play a critical role in the overall stability and longevity of your fence. But, the age-old debate among gardeners, landscapers, and DIY enthusiasts has long been whether fence posts should be set in concrete or not. This ultimate guide explores the advantages and disadvantages of using concrete for fence post installation and provides you with enough information to make an informed decision.

Introduction to Fence Post Installation

Setting fence posts is the first and most crucial step in building a sturdy, long-lasting fence. The method used to install fence posts has a direct impact on the fence's durability and stability. The most common techniques for fence post installation in the UK include:

  • Setting fence posts in concrete
  • Using metal post spikes
  • Packing the base of the post with tightly compacted gravel

In this guide, we will focus primarily on the pros and cons of using concrete for fence post installation.

Advantages of Setting Fence Posts in Concrete

There are several benefits to using concrete when setting fence posts:

Increased Strength and Stability

Concrete is an excellent material to provide additional support and strength to your fence posts. Fences set in concrete are typically more stable, meaning they are less likely to sway in strong winds or become dislodged during heavy rains.


When set in concrete, fence posts are far more resistant to the elements and the natural wear and tear caused by changing weather conditions. This added durability can help extend the life of your fence, saving you time and money on future repairs or replacements.

Pest Prevention

Termites, wood-boring insects, and rot are all common issues faced by wooden fence posts. However, when fence posts are set in concrete, these pests have a more challenging time gaining access to the wood, reducing the likelihood of infestations and subsequent damage.

Theft Deterrence

Fence posts that are set in concrete are more difficult to remove, making them less appealing to potential thieves looking to steal materials or trespass on your property.

Disadvantages of Setting Fence Posts in Concrete

Despite the advantages, there are also drawbacks to using concrete for fence post installation:

Moisture Trapping

When improperly installed, concrete can trap moisture at the base of the fence post, leading to faster rot and decay.

Difficulty in Adjusting or Replacing Fence Posts

If you ever need to replace a fence post or adjust the fence’s height, removing the concrete can be time-consuming and labor-intensive.