Ready to hire?

Post your job in minutes, browse real reviews and choose who to speak to.Post a job

Need some tips or advice?

Plastering & Rendering

Repairing inside of exterior wall

Anonymous user 09/03/2024 - 2.54 PM

Hi all, I have an area of wall about 20cm x 10cm that is the inside of an exterior wall that has crumbled away. It is a 1950s built house. From what I can tell, it is mortar on top of the brick with a plaster skim over it. The mortar has crumbled away back to the brick. What's the best way to fix this? We have a plasterer coming in a few days to skim the whole house, can he repair this? Or would it be best to fill with mortar mix and then have it skimmed with plaster? I've read some stuff about needing a bonding agent on the bricks before putting mortar on, is that necessary for a small(ish) repair? Many thanks in advance for any advice. This site is great for getting helpful professional advice. Carol

Are you a tradesperson and able to answer this question?

2 Answers

Anonymous user

Hi there Carol, If it is an external wall you would be wise to check the outside face for deterioration/mortar degradation/vegetation growth first as any of these may be the cause of the crumbling brickwork. Regarding repairing the internal patch; you are correct - a bonding agent should always be used in this circumstance. Hope this helps, Best wishes

Answered18 November 2017

Anonymous user

Hi Carol, If you have your plasterer arriving soon he will be able to advise you. Having not seen the area but knowing that it is an external wall you do need to check the outside for deterioration or vegetation first as this may have caused the crumbling brickwork. Re the repairs, yes a bonding agent will have to be used, this is relatively inexpensive and a good plasterer will more than likely have some on his van. If you need further advise then please contact me and if you're local i will come to take a look, free of charge of course.

Answered17 November 2017