Damp damage to outside wall?

[Radam87]

External wall damage on sloped drive. Likely caused by water? Effervescence on another wall too. Advice? Repoint? Other?

 

[blup]

Frost damage from water ingress ( rain and/or surface water) because dpc too low (should be minimum 150mm above ground level). Might have pre dated block paving though.

Blup

 

[Radam87]

Any suggestions for fixing? Will likely call in a professional.

We are thinking of selling - would it be in poor taste to leave this to the buyer?

 

[JohnD]

Glue.