Lintel failure - advice please

[1930s renovation]

Hello,

First post here so hope I'm doing everything right and have provided enough/not too much info.

Bought a 1930's mid terrace house last year and in the home inspection report they pointed out that there are cracks above lintels in most rooms and they would need replacing. Just wanting opinions on whether capable/qualified people here agree or not. Having a structural survey in next few months so will know more. No exterior cracking to brickwork anywhere. UPVC windows in there currently that replaced original wooden frames at some point in the past (Long before previous owners so not sure of dates.)

- Lintel first floor, master bedroom. This was confirmed to be timber lintel by home inspector and no longer fit for purpose. Pic 1 & 2 is outside timber lintel. Pic 3 is cracks in wall over the window inside.

- Lintel ground floor, living room. Told by home inspector this is concrete lintel but looks to have been resurfaced at some point. Pic 4, 5 & 6 is outside concrete lintel. Pic 7 is cracks in wall over the window inside.

- Lintel ground floor, kitchen. As above, told by home inspector this is concrete lintel but looks to have been resurfaced at some point. Pic 8 is outside concrete lintel. Pic 9 is wall over window inside. No visible cracking inside but looks like something is going on.

Any advice much appreciated and please try not to terrify me too much!

 

[^woody^]

Any advice much appreciated

Change them!

 

[1930s renovation]

Thanks for the reply. I've since had a builder in to remove fireplace surround and he has taken a look. The second tradesman that has said he doesn't think they need replacing, just re-rendering. They've both said that the brick work above the lintel would be effected if it was blown. To me, with no knowledge whatsoever, it looks like water is getting into the crack in pic 8 so to me that one would need replacing at the very least. I'm prepared to get this done but don't want the hassle of replacement if repair will do for a few more years. Can anyone advise whether they think, from looking at it, that the internal cracking is directly linked to the lintels?