Cracks in internall wall help

[Worriedhomeowner1950]

20200326_063849

• Worriedhomeowner1950
• 26 Mar 2020

Internall wall bedroom

20200326_063856

• Worriedhomeowner1950
• 26 Mar 2020

Internall wall bedroom with flash

20200326_063907

• Worriedhomeowner1950
• 26 Mar 2020

Higher up internall wall in bedroom

20200326_063935

• Worriedhomeowner1950
• 26 Mar 2020

Internal wall landing

20200326_063942

• Worriedhomeowner1950
• 26 Mar 2020

Door frame cracking internal hall

Hi need help especially as i dont think structual engeneers working and i cant sleep.

These cracks where here in our house when we bought last july. Survey said cracks due to thermal movement. However i feel like they look worse. Especially at the actual horizontal crack. Its on both sides of wall. Top of door frame think it may be the tape?
There is no cracking on the other internal wall, this is a juction between three walls. No other cracking in hallway etc???

 

[KenGMac]

Worriedhomeowner1950, good evening.

OK first of not Structural !!!

Are the areas of concern on the ground or first floor?

The area above the door could be paint that has flaked off and been over painted? or the skim coat of plaster has come off and been over painted?? or even lining paper that has been torn off and over painted?

As for the "horizontal" cracks? have you tapped the wall? if so is it "hollow" if so it could be either Lath and Plaster [looking at the architraves] or plasterboard that has been subjected to some impact? if you look really closely there appears to be historic cracking that has been repaired in the vicinity of the present crack damage??

Suggest that you get a hold of a really bright light, place the light source against the wall and scan the light beam around, a really bright torch works well, I use a 1000. Lumen hand held LED torch, the light used like this shows up all defects, especially "old" painted over cracks that do not show when you shine a light on to the surface from some distance away, or from the light in the hall at ceiling level??

Ken