Cracks in newly plastered wall

[Harry028]

Hi.

I had the alcove of my window re-plastered back in February as there were long cracks but they have come back?? Does anyone know what can cause this and how I can stop it from happening again? Pic attached:

View media item 63506

 

[roy c]

Get the guys back who did the job in the first place. You might have to get them back on the premise of "I want you to have a look at this job I want doing". When they come back get them to explain to you how the cracks appeared....

 

[Johnmelad]

Did the alcove wall have movement in it before it was plastered?

 

[Harry028]

Hi Johnmelad.

Yes there were cracks there before which is why i had it re-plastered.

 

[NickB_99]

I had the alcove of my window re-plastered back in February as there were long cracks but they have come back?? Does anyone know what can cause this and how I can stop it from happening again?

You say re-plastered, do you know if they just over-skimmed? Possibly with sticking some scrim tape over the top first?
Those cracks look like they would need more attention than that.

As Roy C says, is best course of action from here.

For cracks of that size, I would expect them to do a deeper repair.
E.g. to cut out with a stanley knife the area up to window frame and around the cracks (with a bit extra) and take back to brick.
Metal lath secured over the cracks (that will probably be evident in the bricks/mortar underneath).
Then undercoat plaster or render over the lath-ed area before applying a final skim.
It's only a window alcove, so hopefully not a massive area to re-skim rather than patch in.

 

[furyxxxuk]

I'm certainly no expert but I'v just bought a house with bay windows which have extensive cracks, these we believe are caused by insufficient foundations under the bays as was apparently common for houses of this era.
Re-plastering won't solve the problem but only hide it until they reopen again. Of course your issue may have merely been cosmetic but the fact they opened up again leads me to think not.
Good Luck.

 

[Pigeon85]

What is on the other side of the wall?