ᐅ Construction supervision, architect, master bricklayer (or master mason), ...?

Hi,

we have purchased a house through an auction and plan to renovate it. For this, we want to move some interior walls, install heating afterwards, and add external thermal insulation with new windows. The building structure seems fine to a non-expert eye (no cracks in the walls, no moisture in the basement, no mold).

I am not a professional, but I have some experience from helping to build a house in my youth. You can hire many specialists for each part of the work – which can get quite expensive. However, I would like to know what is really necessary in our case.

• Structural assessment of wall modifications: The house is quite simple in construction – 4 exterior walls (7.5m x 8.1m (25 feet x 27 feet)), with cross beams supporting the ceiling. Above the ceiling is a converted pitched roof (upper floor). What makes sense here: a structural engineer, an architect, or just a master mason? PS: No building plans are available!
• The previous owner mentioned some wood infestation. It was supposedly treated, but I want to expose and inspect the beams and hire professionals if I find anything unusual. If I notice an infestation, who should I contact – who is the expert in this case?
• Assessment of renovation work: I want to do the rough work myself – building walls, breaking up the floor for heating installation, etc. Professionals should handle plumbing and heating pipes and window installation.
• As for the external thermal insulation system, I am still considering whether to do part of it myself or have it fully done by professionals – I am confident in carrying out the work but need to check if it is financially worthwhile to do it myself.

Or would it make sense to have a construction supervisor who can advise me at every step of the process?

I would appreciate your advice!