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Expertise and innovation for fences since 1973

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In our online store you'll find everything you need for fencing and the garden: chainwire fencing, wire mesh, posts and stays, gates, shading net, plastic meshes, accessories, synthetic lawns, sports equipment.

TITLE: ... and if the fence anchors don't hold?

Hello everyone, this is Marco from Fenceshop. Today we are tackling a situation that can happen frequently when installing fences: what to do if the anchor doesn't hold? Imagine you are ready to install your fence, you have bought all the materials, you make the first hole, insert the first anchor and... TRIK TRIK TRIK, it doesn't hold! It's a frustrating situation that can occur often.

In recent years, anchor technology has made great strides, allowing us to work with much more effective tools than in the past. However, you can still face problems. Let's see together how to solve them.

The Most Common Situations

There are several situations where the anchors might not hold well:

  • Hollow concrete blocks: those rectangular parallelepipeds with two holes are among the most feared.
  • Perforated bricks: These can also create difficulties.
  • Old and crumbling concrete: They no longer have the necessary hold.
  • Insulating coats: They seem like walls, but actually, they are polystyrene or other similar materials.
  • Dry-stone walls: These can be particularly problematic.
The Solution: Chemical Anchor

The solution we propose is the use of a chemical anchor. This product looks similar to a silicone cartridge and is applied with a silicone gun. It is a two-component material, which, when mixed, creates a very hard, almost structural mortar. This solves many problems.

Once the package is opened, you need to cut the plastic tip of the cartridge and screw on the classic silicone tip. The tip has an internal helix that mixes the two components to make them come out already mixed. If they are not mixed well, it doesn't harden.

Prepared the cartridge, it is inserted into the silicone gun and is applied where needed. It is important to know that, according to the manufacturers, you need to make the hole of a certain diameter, blow it clean, and insert a sleeve to ensure the product grips the anchor better. However, in many cases, we can make a hole without blowing it too much and use the anchor directly, still achieving excellent results.

Advantages of the Chemical Anchor

This product offers numerous advantages:

  • Exceptional hold: It allows you to place an anchor where a mechanical anchor would never reach.
  • Versatility: It can be used to fill spaces between walls and plates, creating a solid support.
  • Speed: It hardens quickly in summer, allowing you to work fast.

A practical example: in a job we carried out, the plate with the post was not plumb. We used the anchor to fill the space between the wall and the plate, creating a solid and stable support.

Personal Experience

Let me share a personal experience. I had to install a railing on an old, unstable dry-stone wall. I made larger than usual holes, applied the anchor generously and inserted threaded rods. The result was excellent: the railing stayed solidly in position.

Additionally, I used the anchor to fill the gaps of the plates, like it was silicone. This improved both the aesthetics and the hold.


I hope these tips have been helpful. I invite you to visit our website to see the work we've done and for our ecommerce. Happy working, bye bye!

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