I have two cracks in the wall of my bay window. They need to be looked at. Would this be a job for someone dealing with groundwork and foundations or would I need to contact a different trade?

It sounds like you may need a structural engineer, depending on how bad the cracks are. If the cracks are only hairline, then rake them out, get a decent filler, rub down and paint over.

Hi Bridget Have these cracks just started? Or got morse and opened up recently? In a honest opinion i would seek advice from a structural surveyor/engineer as if it is a ongoing problem and is getting worse or the crack is opening you need to make sure your foundations are 100%. He/She might just say it can be knitted back together by meens of Crack Stitch Repairing which is a way of tying the brickwork back together with Stainless steel Heli Bars and resin/grout embedded in the mortar joints. Good luck Scott Cannon.

depends where the cracks are,could be ground movement your safest bet is to employ a chartered building surveyor to give you a report and a solution which could include underpinning although bay windows are notorius for these kind of problems when windows are replaced and the wall are not supported during installation.

The cracks may not be from subsidence, you may have wall tie erosion and or some other problem, Post as a job for a bricklayer/builder and get quotes /advice

a bricklayer would give u the right answer , would u like me to call around and look at the job u have for a tradesman

You need to consult a Structural Engineer who will investigate and advise on the best course of action. If its not a Structural issue then the cracks will just simply need making good. Any rectification done under the guidance of the Engineer would be covered by his professional indemnity insurance. Dave Middleton