Hello,
I am needing to repair 2 decent sized holes on my internal brick walls. The holes were made to conceal tv cables but now we want to patch it up and paint the wall.
Was just wondering what the best method was to do this?
Thanks
Hi @STHY,
The basic process would be to fill the hole with a mortar that can be used in vertical applications such as this https://www.bunnings.com.au/dingo-10kg-structural-mortar-repair-bag_p0363480 , leaving it a couple of millimetres shy of the surface of the wall, then allowing the mortar to cure for at least 24 hours, then applying an all-purpose plaster compound over the mortar, sanding, priming and painting.
If there is no backing in the hole to push the mortar against, then you would have to mix it relatively dry and try to pack it up from the bottom to fill the hole. This is likely achievable, but it would be easier to simply use some expanding foam to act as a backing before your mortar and plaster. As it expands, it will wedge itself in there better than mortar can, acting as a backing for the subsequent materials.
With the green plugs, you have a couple of options. You can try to pull them out using long-nose pliers, or by driving a screw in around 5mm or so to get some grip, but not deep enough to cause major expansion, then pulling the screw. Or you may be able to simply drive them in deeper so that they sit below the surface and can be covered or drill out the top 3-4mm of them. After either removing, pushing them deeper, or drilling them out, the hole will be small enough that you can simply fill it with plaster compound.
Let me know what you think and if you have further questions, please don't hesitate to ask.
Jacob
